Alexander Greer
Professor
Chemistry
Location: 341 Ingersoll Hall Extension
Phone: 718.951.5000 x2830
Fax: 718.951.4607
Email:
Alexander Greer's Web site
Our group utilizes both experimental and theoretical methods to research fundamental aspects of organic photochemistry. Our main focus is controlling and amplifying the production of reactive oxygen species. Our current projects involve organic oxidation mechanisms, visible-light photosensitization, reactive intermediates, and photo-reactor development. One research area deals in the pioneering use of fiber optics combined with sensitizer drugs for the production and precise delivery of singlet oxygen to eradicate cancer cells. We also study the interfacial behavior of reactive oxygen species, including the localized delivery of singlet oxygen and alkoxy radicals both as individual or tandem disinfectants. We probe our reaction mechanisms using density functional theory for theoretical calculations which guide and deepen our understanding of experiments. Our work is currently funded by the National Science Foundation.
Education:
Postdoctoral Fellow, UCLA - 1999 (Organic Chemistry)
Ph.D., University of Wyoming - 1996 (Organic Chemistry)
Areas of Expertise:
Organic chemistry and photochemistry; synthetic reactions; reactive oxygen intermediates; interfacial oxidations; particulate photochemistry; natural antioxidants; microreactors and devices; singlet oxygen-based photodynamic therapy.
Books and Publications
M. S. Baptista; J. Cadet; A. Greer; A. H. Thomas "Practical Aspects in the Study of Biological Photosensitization Including Reaction Mechanisms and Product Analyses: A Do's and Don'ts Guide" Photochem. Photobiol., in press. (Books and Publications: Article (Peer-reviewed)) 2023
A. Greer, "Violet-blue Light Induces 'Natural' Photodynamic Plasma Disinfection with Endogenous Sensitizers" Photochem. Photobiol. 2022, 98, 513-515. (Books and Publications: Article (Peer-reviewed)) 2022
B. Malek; W. Lu; P. P. Mohapatra; N. Walalawela; Jabeen, S.; Liu, J.; A. Greer "Probing the Transition State-to-Intermediate Continuum: Mechanistic Distinction Between a Dry vs Wet Perepoxide in the Singlet Oxygen 'Ene' Reaction at the Air-Water Interface" Langmuir 2022, 38, 6036-6048. (Books and Publications: Article (Peer-reviewed)) 2022
C. C. Tonon; Xu, Q.; Ghosh, G.; S Ashraf; A. Nara de Sousa Rastelli; T. Hasan; A. Greer; A. L. Lyons "Evaluation of Photosensitizer-Containing Superhydrophobic Surfaces for the Antibacterial Treatment of Periodontal Biofilms" J. Photochem. Photobiol. B 2022, 112458. (Books and Publications: Article (Peer-reviewed)) 2022
E. M. Greer; V. Siev; A. Segal; A. Greer; C. Doubleday "Computational Evidence for Tunneling and a Hidden Intermediate in the Biosynthesis of Tetrahydrocannabinol" J. Am. Chem. Soc. 2022, 144, 7646-7656. (Books and Publications: Article (Peer-reviewed)) 2022
J. L. F. Castro; M. J. Sosa; G. Petroselli; R. Erra-Balsells; M. I. Quindt; S. M. Bonesi; A. Greer; E. M. Greer; A. H. Thomas; M. Vignoni "Synthesis, Characterization, and Photocleavage of Bis-decyl Pteroic Acid: A Folate Derivative with Affinity to Biomembranes" Photochem. Photobiol., in press. (Books and Publications: Article (Peer-reviewed)) 2022
O. Turque; R. M. O'Connor; A. Greer "Singlet Oxygen's Potential Role as a Nonoxidative Facilitator of Disulfide S-S Bond Rotation" Photochem. Photobiol., in press, DOI: 10.1111/PHP.13727. (Books and Publications: Article (Peer-reviewed)) 2022
S. Jabeen; G. Ghosh; L. Lapoot; A. M. Durantini; A. Greer "Sensitized Photooxidation of ortho-Prenyl Phenol: Biomimetic Dihydrobenzofuran Synthesis and Total 1O2 Quenching" Photochem. Photobiol., in press, DOI: 10.1111/php.13689. (Books and Publications: Article (Peer-reviewed)) 2022
A. Greer, "Preface: Edward L. Clennan Retirement Special Issue of Photochemistry & Photobiology" Photochem. Photobiol. 2021, 97, 1166-1167. (Books and Publications: Article (Peer-reviewed)) 2021
A. M. Durantini; A. Greer "Interparticle Delivery and Detection of Volatile Singlet Oxygen at Air/solid Interfaces" Environ. Sci. Technol. 2021, 55, 3559-3567. (Books and Publications: Article (Peer-reviewed)) 2021
A. M. Durantini; P. P. Mohapatra; M. Ashaque; M. E. Zatoulovski; M. M. Kim; K. A. Cengel; T. M. Busch; T. C. Zhu; A. Greer "Photooxidative Vulnerability to Intralipid in Photodynamic Therapy" In Periodical Reports in Photochemistry of the Royal Society of Chemistry; Protti, S.; Raviola, C. Eds.; Cambridge, UK (2021), Vol. 48, pp. 411-422. (Books and Publications: Book Chapter) 2021
Belh, S. J.; Ghosh, G.; Greer, A. "Surface-Radical Mobility Test by a Self-Sorting Mechanism: Symmetrical Product upon Recombination (SPR)" J. Phys. Chem. B 2021, 125, 4212-4220. (Books and Publications: Article (Peer-reviewed)) 2021
C. C. Tonon; S. Ashraf; J. Q. Alburquerque; A. Nara de Sousa Rastelli; T. Hasan; A. M. Lyons; A. Greer "Antimicrobial Photodynamic Inactivation Using Topical and Superhydrophobic Sensitizer Techniques: A Perspective from Diffusion in Biofilms" Photochem. Photobiol. 2021, 97, 1266-1277. (Books and Publications: Article (Peer-reviewed)) 2021
J. Robinson-Duggon; N. Pizarro; G. Gunther; D. Zúñiga-Núñez; A. M. Edwards; A. Greer; D. Fuentealba "Fatty Acid Conjugates of Toluidine Blue O as Amphiphilic Photosensitizers: Synthesis, Solubility, Photophysics, and Photochemical Properties" Photochem. Photobiol. 2021, 97, 71-79. (Books and Publications: Article (Peer-reviewed)) 2021
M. J. Sosa; M. N. Urrutia; P. L. Schilardi; S. Bonesi; D. Denburg; M. Vignoni; A. Greer; E. M. Greer; A. H. Thomas "Mono- and Bis-Alkylated Lumazine Sensitizers: Synthetic, Molecular Orbital Theory, Nucleophilic Index, and Photochemical Studies" Photochem. Photobiol. 2021, 97, 80-90. (Books and Publications: Article (Peer-reviewed)) 2021
M. Rashid; D. D. Baker; A. Greer "Two-Step Two-Intermediate Photorelease Bolm-McCulla Reaction: Dual Release of Nitrene and Atomic Oxygen Reactive Intermediates" Photochem. Photobiol. 2021, 97, 1453-1455. (Books and Publications: Article (Peer-reviewed)) 2021
M. S. Baptista; J. Cadet; A. Greer; A. H. Thomas "Photosensitization Reactions of Biomolecules: Definition, Targets, and Mechanisms" Photochem. Photobiol. 2021, 97, 1456-1483. (Books and Publications: Article (Peer-reviewed)) 2021
Matikonda, S. S.; Helmerich, D. A.; Meub, M.; Beliu, G.; Kollmannsberger, P.; Greer, A.; Sauer, M.; Schnermann, M. J. "Defining the Basis of Cyanine Phototruncation Enables a New Approach to Single Molecule Localization Microscopy" ACS Cent. Sci. 2021, 7, 1144-1155. (Books and Publications: Article (Peer-reviewed)) 2021
R. M. O'Connor; A. Greer "How Tryptophan Oxidation Arises by 'Dark' Photoreactions from Chemiexcited Triplet Acetone" Photochem. Photobiol. 2021, 97, 456-459. (Books and Publications: Article (Peer-reviewed)) 2021
The Chemistry of Polynitrogen Species, edited by J. F. Liebman and A. Greer, John Wiley & Sons, Ltd: Chichester, UK, 2020. (Books and Publications: Book (Authored)) 2020
A. Greer "In Vivo Tissue Evaluation Reveals Improvements in Explicit PDT Dosimetry" Photochem. Photobiol. 2020, 96, 437-439. (Books and Publications: Article (Peer-reviewed)) 2020
B. Ortel; S. Jabeen; A. Greer "Adjuvants that Empower the Action of Photodynamic Therapy" Photochem. Photobiol. 2020, 96, 725-727. (Books and Publications: Article (Peer-reviewed)) 2020
D. Aebisher; D. Bartusik-Aebisher; S. J. Belh; G. Ghosh; Y. Liu; A. M. Lyons; A. Greer "Superhydrophobic Surfaces as a Source of Airborne Singlet Oxygen Through Free Space for Photodynamic Therapy" ACS Appl. Bio Mater. 2020, 3, 2370-2377. (Books and Publications: Article (Peer-reviewed)) 2020
G. Ghosh; A. Greer "A Fluorinated Phosphite Traps Alkoxy Radicals Photogenerated at the Air/solid Interface of a Nanoparticle" J. Phys. Org. Chem. 2020; e4115. (Books and Publications: Article (Peer-reviewed)) 2020
G. Ghosh; H. Yin; S. M. A. Monro; T. Sainuddin; A. Greer; S. A. McFarland "Synthesis and Characterization of Ru(II) Complexes with π-Expansive Imidazophen Ligands for the Photokilling of Human Melanoma Cells" Photochem. Photobiol. 2020, 96, 349-357. (Books and Publications: Article (Peer-reviewed)) 2020
M. S. Oliveira; G. Chorociejus; J. P. F. Angeli; G. M. V. V. Safadi; G. L. B. Aquino; G. E. Ronstein; L. F. Barbosa; M. C. Oliveira; M. H. G. Medeiros; A. Greer; P. Di Mascio "Heck Reaction Synthesis of Anthracene and Naphthalene Derivatives as Traps and Clean Chemical Sources of Singlet Molecular Oxygen in Biological Systems" Photochem. Photobiol. Sci. 2020, 19, 1590-1602. (Books and Publications: Article (Peer-reviewed)) 2020
O. Turque; A. Greer; O. R. Wauchope "Synthetic Feasibility of Oxygen-driven Photoisomerizations of Alkenes and Polyenes" Org. Biomol. Chem. 2020, 18, 9181-9190. (Books and Publications: Article (Peer-reviewed)) 2020
S. Jabeen; A. Greer; K. F. Edwards; J. F. Liebman "Why are the Elemental Nonmetals (F2, Cl2, Br2, I2, S8, P4) of So Many Hues or of Any Hues? Where is the Chromophore?" Photochem. Photobiol. 2020, 96,1140-1143. (Books and Publications: Article (Peer-reviewed)) 2020
S. Jabeen; M. Farag; B. Malek; R. Choudhury; A. Greer "A Singlet Oxygen Priming Mechanism: Disentangling of Photooxidative and Downstream Dark Effects" J. Org. Chem. 2020, 85, 12505-12513. (Books and Publications: Article (Peer-reviewed)) 2020
S. W. Slayden; A. Greer; J. F. Liebman "Introduction to the Energetics and Thermochemical Aspects of Polynitrogen Species" In: The Chemistry of Nitrogen-rich Functional Groups, Chap. 1, J. F. Liebman and A. Greer (eds.), John Wiley & Sons, Chichester, UK, 2020, pp. 1-16. (Books and Publications: Book Chapter) 2020
S. W. Slayden; A. Greer; J. F. Liebman "Some Thermochemical Aspects of Acyclic Polynitrogen Species" In: The Chemistry of Nitrogen-Rich Functional Groups, Chap. 11, J. F. Liebman and A. Greer (eds.), John Wiley & Sons, Chichester, UK, 2020, pp. 329-356. (Books and Publications: Book Chapter) 2020
T. Hasan; D. Kessel; A. Greer "Thomas Dougherty Memorial Issue of Photochemistry & Photobiology: Preface" Photochem. Photobiol. 2020, 96, 453. (Books and Publications: Article (Peer-reviewed)) 2020
A. Greer; E. Chudnovsky "Reactions: Free Academic Exchange" Chem. Eng. News 2019, 97(44). (Books and Publications: Article (Other)) 2019
A. Greer; J. Cadet "55th Anniversary Issue of Photochemistry & Photobiology: Preface" Photochem. Photobiol. 2019, 95, 6-7. (Books and Publications: Article (Peer-reviewed)) 2019
B. A. DeHaven; H. K. Liberatore; A. Greer; S. D. Richardson; L. S. Shimizu "Probing the Formation of Reactive Oxygen Species by a Porous Self-assembled Benzophenone Bis-urea Host" ACS Omega 2019, 4, 8290-8298. (Books and Publications: Article (Peer-reviewed)) 2019
Belh, S. J.; Walalawela, N.; Lekhtman, S.; Greer, A. "Dark-binding Process Relevant to Preventing Photooxidative Damage: Conformation Dependent Light and Dark Mechanisms by a Dual-functioning Diketone" ACS Omega 2019, 4, 22623-22631. (Books and Publications: Article (Peer-reviewed)) 2019
C. Chiemezie; A. Greer "Secondary Dark Reactions Following Photodynamic Treatment are More Damaging Than Previously Thought" Photochem. Photobiol. 2019, 95, 460-461. (Books and Publications: Article (Peer-reviewed)) 2019
Eugene Chudnovsky and Alexander Greer "Should the United States Hide Its Cancer Research from China" Committee of Concerned Scientists 2019, on-line. (Books and Publications: Article (Other)) 2019
G. Ghosh; S. J. Belh; C. Chiemezie; N. Walalawela; A. A. Ghogare; M. Vignoni; A. H. Thomas; S. A. McFarland; E. M. Greer; A. Greer "S,S-Chiral Linker Induced U-Shape with a Syn-facial Sensitizer and Photocleavable Ethene Group" Photochem. Photobiol. 2019, 95, 293-305. (Books and Publications: Article (Peer-reviewed)) 2019
J. P. Mathew; A. Greer "Cyanine Modification Tuned for Amine Photorelease" Photochem. Photobiol. 2019, 95, 1280-1282. (Books and Publications: Article (Peer-reviewed)) 2019
J. Robinson-Duggon; N. Mariño Ocampo; P. Barrías; D. Zuñiga-Núñez; G. Günther; A. Greer; D. Fuentealba "On the Mechanism of Visible-Light Photooxidative Demethylation of Toluidine Blue O" J. Phys. Chem. A 2019, 123, 4863-4872. (Books and Publications: Article (Peer-reviewed)) 2019
L. P. Bejcek; A. K. Garimallaprabhakaran; D. M. Suyabatmaz; A. Greer; W. H. Hersh; E. M. Greer; R. P. Murelli "Studies on the Dimerization of Regioisomeric Oxidopyrylium Ylides and Its Impact on Cycloaddition Trapping Efficiency" J. Org. Chem. 2019, 84, 14670-14678. (Books and Publications: Article (Peer-reviewed)) 2019
Niluksha Walalawela, María Noel Urrutia, Andrés H. Thomas, Alexander Greer, Mariana Vignoni "Alkane Chain-extended Pterin Through a Pendent Carboxylic Acid Acts as Triple Functioning Fluorophore, 1O2 Sensitizer, and Membrane Binder" Photochem. Photobiol. 2019, 95, 1160-1168. (Books and Publications: Article (Peer-reviewed)) 2019
M. Vignoni; M. N. Urrutia; H. C. Junqueira; A. Greer; A. Reis; M. S. Baptista; R. Itri; A. H. Thomas "Photooxidation of Unilamellar Vesicles by a Lipophilic Pterin: Deciphering Biomembrane Photodamage" Langmuir 2018, 34, 15578-15586. (Books and Publications: Article (Peer-reviewed)) 2018
M. Vignoni; N. Walalawela; S. M. Bonesi; A. Greer; A. H. Thomas "Lipophilic Decyl Chain-Pterin Conjugates with Sensitizer Properties" Mol. Pharmaceutics 2018, 15, 798-807. (Books and Publications: Article (Peer-reviewed)) 2018
N. Walalawela; A. Greer "Heterogeneous Photocatayltic Deperoxidation with UV and Visible Light" J. Phys. Org. Chem. 2018, e3807. (Books and Publications: Article (Peer-reviewed)) 2018
N. Walalawela; M. Vignoni; M. N. Urrutia; S. J. Belh; E. M. Greer; A. H. Thomas; A. Greer "Kinetic Control in the Regioselective Alkylation of Pterin Sensitizers: A Synthetic, Photochemical, and Theoretical Study" Photochem. Photobiol. 2018, 94, 834-844. (Books and Publications: Article (Peer-reviewed)) 2018
S. Pushalkar; G. Ghosh; Q. Xu; Y. Liu; A. A. Ghogare; C. Atem; A. Greer; D. Saxena; A. M. Lyons "Superhydrophobic Photosensitizers: Airborne 1O2 Killing of an In vitro Oral Biofilm at the Plastron Interface" ACS Appl. Mater. Interfaces 2018, 10, 25819-25829. (Books and Publications: Article (Peer-reviewed)) 2018
A. A. Ghogare; C. J. Debaz; M. S. Oliveira; I. Abramova; P. P. Mohapatra; K. Kwon; E. M. Greer; F. M. Prado; H. P. Valerio; P. Di Mascio; A. Greer "Experimental and DFT Computational Insight into Nitrosamine Photochemistry-Oxygen Matters" J. Phys. Chem. A. 2017, 121, 5954-5966. (Books and Publications: Article (Peer-reviewed)) 2017
I. Abramova; B. Rudshteyn; J. F. Liebman; A. Greer "Computed Regioselectivity and Conjectured Biological Activity of Ene Reactions of Singlet Oxygen with the Prenylnatural Product Hyperforin" Photochem. Photobiol. 2017, 93, 626-631. (Books and Publications: Article (Peer-reviewed)) 2017
M. M. Kim; A. A. Ghogare; A. Greer; T. C. Zhu "On the In-vivo Photochemical Rate Parameters for PDT Reactive Oxygen Species Modeling" Phys. Med. Biol. 2017, 62, R1-R48. (Books and Publications: Article (Peer-reviewed)) 2017
M. S. Baptista; J. Cadet; P. Di Mascio; A. A. Ghogare; A. Greer; M. R. Hamblin; C. Lorente; S. C. Nunez; M. S. Ribeiro; A. H. Thomas; M. Vignoni; T. M. Yoshimura "Type I and II Photosensitized Oxidation Reactions: Guidelines and Mechanistic Pathways" Photochem. Photobiol. 2017, 93, 912-919. (Books and Publications: Article (Peer-reviewed)) 2017
P. P. Mohapatra; C. O. Chiemezie; A. Kligman; M. M. Kim; T. M. Busch; T. C. Zhu; A. Greer "31P NMR Evidence for Peroxide Intermediates in Lipid Emulsion Photooxidations: Phosphine Substituent Effects in Trapping" Photochem. Photobiol. 2017, 93, 1430-1438. (Books and Publications: Article (Peer-reviewed)) 2017
S. Groveman; J. Peng; B. Itin; I. Diallo; L. M. Pratt; A. Greer; E. J. Biddinger; S. G. Greenbaum; C. M. Drain; L. Francesconi; M. Vittadello "The Role of Ozone in the Formation and Structural Evolution of Graphene Oxide Obtained from Nanographite" Carbon 2017, 122, 411-421 (Books and Publications: Article (Peer-reviewed)) 2017
S. Protti; A. Albini; R. Viswanathan; A. Greer "Targeting Photochemical Scalpels or Lancets in the Photodynamic Therapy Field: The Photochemist's Role" Photochem. Photobiol. 2017, 93, 1139-1153. (Books and Publications: Article (Peer-reviewed)) 2017
T. Bornhütter, A. A. Ghogare, A. Preuß, A. Greer, B. Röder "Synthesis, Photophysics and PDT Evaluation of Mono-, Di-, Tri- and Hexa-PEG Chlorins for Pointsource Photodynamic Therapy" Photochem. Photobiol. 2017, 93, 1259-1268. (Books and Publications: Article (Peer-reviewed)) 2017
A. A. Ghogare; A. Greer "Synthesis of a Poly(ethylene glycol) Galloyl Sensitizer Tip for an 'All-in-one' Photodynamic Device" J. Biophotonics 2016, 9, 1326-1336. (Books and Publications: Article (Peer-reviewed)) 2016
A. A. Ghogare; A. Greer "Using Singlet Oxygen to Synthesize Natural Products and Drugs" Chem. Rev. 2016, 116, 9994-10034. (Books and Publications: Article (Peer-reviewed)) 2016
A. A. Ghogare; J. M. Miller; B. Mondal; A. M. Lyons; K. A. Cengel; T. M. Busch; A. Greer "Fluorinated PDT Device Tips and Their Resistance to Fouling for In-vivo Sensitizer Release" Photochem. Photobiol. 2016, 92, 166-172. (Books and Publications: Article (Peer-reviewed)) 2016
A. Mahendran; A. A. Ghogare; R. Bittman; G. Arthur; A. Greer "Synthesis and Antiproliferative Properties of a New Ceramide Analog of Varacin" Chem. Phys. Lipids 2016, 194, 163-170. (Books and Publications: Article (Peer-reviewed)) 2016
B. Malek; W. Fang; I. Abramova; N. Walalawela; A. A. Ghogare; A. Greer "Ene Reactions of Singlet Oxygen at the Air-Water Interface" J. Org. Chem. 81, 6395-6401. (Books and Publications: Article (Peer-reviewed)) 2016
E. M. Greer; K. Kwon; A. Greer; C. Doubleday "Thermally Activated Tunneling in Organic Reactions" Tetrahedron 2016, 72, 7357-7373. (Books and Publications: Article (Peer-reviewed)) 2016
G. Fabriàs; A. Greer; R. S. Lankalapalli; R. Engel "Editorial: Introduction to the Robert Bittman Memorial Issue" Chem. Phys. Lipids 2016, 194, 1. (Books and Publications: Article (Peer-reviewed)) 2016
Walalawela, N. and A. Greer. "Remote Singlet Oxygen Delivery Strategies." Singlet Oxygen: Applications in Biosciences and Nanosciences. Eds. S. Nonell and C. Flors. Royal Society of Chemistry, pp 335-354. (Books and Publications: Article (Peer-reviewed)) 2016
A. A. Ghogare; D. Bartusik; G. Ghosh; N. Walalawela; I. Abramova; K. A. Cengel; J. M. Miller; T. M. Busch; A. Greer "Photodynamic Therapy by a Device Probe Tip" Photonics & Lasers in Medicine 4, 362-365 (Books and Publications: Article (Peer-reviewed)) 2015
B. Malek; A. A. Ghogare; R. Choudhury; A. Greer "Air-water Interface Effects on the Regioselectivity of Singlet Oxygenations of a Trisubstituted Alkene" Tetrahedron Lett. 56, 4505-4508. (Books and Publications: Article (Peer-reviewed)) 2015
Ghosh, G., M. Minnis, A. A. Ghogare, I. Abramova, K. Cengel, T. M. Busch and A. Greer. "Photoactive Fluoropolymer Surfaces that Release Sensitizer Drug Molecules." Journal of Physical Chemistry B 119: 4155-64. (Books and Publications: Article (Peer-reviewed)) 2015
M. S. Oliveira; A. A. Ghogare; I. Abramova; E. M. Greer; F. M. Prado; P. Di Mascio; A. Greer "Mechanism of Photochemical O-Atom Exchange in Nitrosamines with Molecular Oxygen" J. Org. Chem. 2015, 80, 6119-6127. (Books and Publications: Article (Peer-reviewed)) 2015
Balaban, A.T., A. Greer and J.F. Liebman. "Aromaticity and Conjugation in 1,2-Benzoquinone Valence Isomers and Congeners." Advances in Heterocyclic Chemistry, Volume 113. Ed. E. Scriven. Amsterdam: Elsevier. 111-42. (Books and Publications: Article (Peer-reviewed)) 2014
Choudhury, R. and A. Greer. "Synergism Between Airborne Singlet Oxygen and a Trisubstituted Olefin Sulfonate for the Inactivation of Bacteria." Langmuir 30: 3599-605. (Books and Publications: Article (Peer-reviewed)) 2014
Ghogare, A., I. Rizvi, T. Hasan and A. Greer. "Pointsource Delivery of a Photosensitizer Drug and Singlet Oxygen: Eradication of Glioma Cells in Vitro." Photochemistry and Photobiology 90: 1119-25. (Books and Publications: Article (Peer-reviewed)) 2014
Greer, A. and J. L. Liebman. The Chemistry of Peroxides, Vol. 3. Chichester, United Kingdom: John Wiley & Sons. (Books and Publications: Book (Edited)) 2014
Greer, A., A.T. Balaban and J.F. Liebman. "An Introduction to the Consequences of Spin and Bond Strength in the Chemistry of Diatomic Oxygen, Peroxides and Related Species." The Chemistry of Peroxides, vol. 3. Eds. A. Greer and J.F. Liebman. Chichester, United Kingdom: John Wiley & Sons, Ltd. 1-20. (Books and Publications: Book Chapter) 2014
Rudshteyn, B., Á. Castillo, A. Ghogare, J.F. Liebman and A. Greer. "Theoretical Study of the Reaction Formalhydrazone With Singlet Oxygen. Fragmentation of the C=N Bond, Ene Reaction, and Other Processes." Photochemistry & Photobiology 90: 431-38 (dedicated to the memory of Professor Nicholas J. Turro). (Books and Publications: Article (Peer-reviewed)) 2014
Walalawela, N. and A. Greer. "Photoactive Chitosan: A Step Toward a Green Strategy for Pollutant Degradation." Photochemistry and Photobiology 90: 1216-18. (Books and Publications: Article (Peer-reviewed)) 2014
Zhao, Y., Y. Liu, Q. Xu, M. Barahman, D. Bartusik, A. Greer and A. M. Lyons. "Singlet Oxygen Generation on Porous Superhydrophobic Surfaces: Effect of Gas Flow and Sensitizer Wetting on Trapping Efficiency." Journal of Physical Chemistry A 118: 10364-71. (Books and Publications: Article (Peer-reviewed)) 2014
Abramova, I. and A. Greer. "Ethnochemistry and Human Rights." Chemistry and Biodiversity 10: 1724-28. (Books and Publications: Article (Peer-reviewed)) 2013
Aebisher, D., D. Bartusik, Y. Liu, Y. Zhao, M. Barahman, Q. Xu, A.M. Lyons and A. Greer. "Superhydrophobic Photosensitizers. Mechanistic Studies of 1O2 Generation in the Plastron and Solid/Liquid Droplet Interface." Journal of the American Chemical Society 135: 18990-98. (Books and Publications: Article (Peer-reviewed)) 2013
Bartusik, D., D. Aebisher, A. Ghogare, G. Ghosh, I. Abramova, T. Hasan and A. Greer. "A Fiberoptic (Photodynamic Therapy Type) Device with a Photosensitizer and Singlet Oxygen Delivery Probe Tip for Ovarian Cancer Cell Killing." Photochemistry and Photobiology 89: 936-41. (Books and Publications: Article (Peer-reviewed)) 2013
Bartusik, D., M. Minnis, G. Ghosh and A. Greer. "Autocatalytic-Assisted Photorelease of a Sensitizer Drug Bound to a Silica Support." Journal of Organic Chemistry 78: 8537-44. (Books and Publications: Article (Peer-reviewed)) 2013
Miranda, M. S., J. C. G. Esteves da Silva, A. Castillo, A. T. Frank, A. Greer, J. A. Brown, B.C. Davis and J. F. Liebman. "Amino, Ammonio and Aminioethenes: A Theoretical Study of Their Structure and Energetics" Journal of Physical Organic Chemistry 26: 613-25. (Books and Publications: Article (Peer-reviewed)) 2013
Rudshteyn, B., A. Castillo and A. Greer. "Theoretical Study of a Nonpeptidic Polydisulfide Alpha-Helix. Journal of Sulfur Chemistry 34: 3-6. (Books and Publications: Article (Peer-reviewed)) 2013
"Human Rights And Indigenous Peoples" Chemical & Engineering News 90.13: 6. (Books and Publications: Article (Other)) 2012
Bartusik, D., D. Aebisher, A. M. Lyons and A. Greer. "Bacterial Inactivation by a Singlet Oxygen Bubbler: Identifying Factors Controlling the Toxicity of 1O2 Bubbles." Environmental Science & Technology 46: 12098-104. (Books and Publications: Article (Peer-reviewed)) 2012
Bartusik, D., D. Aebisher, B. Ghafari, A. M. Lyons and A. Greer. "Generating Singlet Oxygen Bubbles: A New Mechanism for Gas-Liquid Oxidations in Water." Langmuir 28: 3053-60. (Books and Publications: Article (Peer-reviewed)) 2012
Bartusik, D., D. Aebisher, G. Ghosh, M. Minnis and A. Greer. "Fluorine End-Capped Optical Fibers for Photosensitizer Release and Singlet Oxygen Production." Journal of Organic Chemistry 77: 4557-65. Featured article. (Books and Publications: Article (Peer-reviewed)) 2012
Castillo, Á., L. Lee and A. Greer. "Encapsulation and Convex-face Thiozonolysis of Triatomic Sulfur (S3) with Carbon Nanotubes." Journal of Physical Organic Chemistry 25: 42-49. (Books and Publications: Article (Peer-reviewed)) 2012
Kimani, S., G. Ghosh, A. Ghogare, B. Rudshteyn, D. Bartusik, T. Hasan and A. Greer. "Synthesis and Characterization of Mono-, Di-, and Tri-Poly(ethylene glycol) Chlorin e6 Conjugates for the Photokilling of Human Ovarian Cancer Cells." Journal of Organic Chemistry 77: 10638-47. (Books and Publications: Article (Peer-reviewed)) 2012
Review of Modern Molecular Photochemistry of Organic Molecules, by Nicholas J. Turro, Vaidhyanathan Ramamurthy and
Juan C. Scaiano. Oxford, United Kingdom; Blackwell Publishing Ltd.; 2012. Photochemistry and Photobiology 88: 1033. (Books and Publications: Book Review) 2012
"Chemistry Students and Human Rights." Chemistry and Biodiversity 8: 2158-61. (Books and Publications: Article (Peer-reviewed)) 2011
J.M. Motto, A. Castillo, A. Greer, L.K. Montemayer, E.E. Sheepwash, A.L. Schwan. "Synthetic Scope, Computational Chemistry and Mechanism of the Base Induced 5-Endo Cyclizations of Benzyl Alkynyl Sulfides." Tetrahedron 67: 1002-10. (Books and Publications: Article (Peer-reviewed)) 2011
Kruft, B.I. and A. Greer, "Photosensitization Reactions In Vitro and In Vivo." Photochemistry and Photobiology 87: 1204-13. (Books and Publications: Article (Peer-reviewed)) 2011
Mahendran, A., Y. Kopkalli, G. Ghosh, A. Ghogare, M. Minnis, B.I. Kruft, M. Zamadar, D. Aebisher, L. Davenport and A. Greer. "A Hand-held Fiber-optic Implement for the Site-specific Delivery of Photosensitizer and Singlet Oxygen." Photochemistry and Photobiology 87: 1330-37. (Books and Publications: Article (Peer-reviewed)) 2011
Slayden, S.W., A. Greer and J.F. Liebman. "Peroxynitrogen: A Study of Nitrogen/Oxygen Heterocycles With N-O and O-O or N-O-O Bonding." The Chemistry of Functional Groups (Patai series). The Chemistry of Hydroxylamines, Oximes and Hydroxamic Acids, Volume 2. Eds. Z. Rappoport and J.F. Liebman. Chichester: Wiley. 549-76. (Books and Publications: Book Chapter) 2011
Zamadar, M., G. Ghosh, A. Mahendran, M. Minnis, B.I. Kruft, A. Ghogare, D. Aebisher and A. Greer. "Photosensitizer Drug Delivery via an Optical Fiber." Journal of the American Chemical Society 133: 7882-91. (Books and Publications: Article (Peer-reviewed)) 2011
A. Mahendran, A. Voung, D. Aebisher, Y. Gong, R. Bittman, G. Arthur, A. Kawamura and A. Greer. "Synthesis, Characterization, Mechanism of Decomposition, and Antiproliferative Activity of a Class of PEGylated Benzopolysulfanes Structurally Similar to the Natural Product Varacin." Journal of Organic Chemistry 75: 5549-57. (Books and Publications: Article (Peer-reviewed)) 2010
Aebisher, D., M. Zamadar, A. Mahendran, G. Ghosh, C. McEntee and A. Greer. "Fiber-optic Singlet Oxygen [1O2 (1∆g)] Generator Device Serving as a Point Selective Sterilizer." Photochemistry and Photobiology 86: 890-94. (Books and Publications: Article (Peer-reviewed)) 2010
Review of Oxidation of Organic Compounds by Dioxiranes, by Waldemar Adam, Cong-Gui Zhao, Chantu R. Saha-Möller and Kavitha Jakka. New York: Wiley (2009). Angewandte Chemie International Edition 49: 251. (Books and Publications: Book Review) 2010
Zamadar, M. and A. Greer. "Singlet Oxygen as a Reagent in Organic Synthesis." Handbook of Synthetic Photochemistry Eds. A. Albini and M. Fagnoni. Weinheim, Germany: Wiley-VCH. pp. 353-86. (Books and Publications: Book Chapter) 2010
Castillo, A. and A. Greer. "Theoretical Studies of a Singlet Oxygen-Releasing Dioxapaddlane (1,4-Diicosa naphthalene-1,4-endoperoxide)." Structural Chemistry 20: 399-407. (Books and Publications: Article (Peer-reviewed)) 2009
Greer, A. and Z. Lerman. "Misguided and Illegal Boycott." Chemical & Engineering News 87.38: 3-4. (Books and Publications: Article (Other)) 2009
Raber, M.L., A. Castillo, A. Greer and C.A. Townsend. "A Conserved Lysine in beta-Lactam Synthetase Assists Ring Cyclization: Implications for Clavam and Carbapenem Biosynthesis." ChemBioChem 10: 2904-12. (Books and Publications: Article (Peer-reviewed)) 2009
Zamadar, M., D. Aebisher and A. Greer. "Singlet Oxygen Delivery Through the Porous Cap of a Hollow-Core Fiber Optic Device." Journal of Physical Chemistry B 113: 15803-06. (Books and Publications: Article (Peer-reviewed)) 2009
Aebisher, D. and A. Greer. Preface: "Extreme Sulfur Chemistry." Journal of Sulfur Chemistry 29: 241. (Books and Publications: Article (Peer-reviewed)) 2008
Aebisher, D., N. S. Azar, M. Zamadar, H. D. Gafney, N. Gandra, R. Gao and A. Greer. "Singlet Oxygen Chemistry in Water. A Porous Vycor Glass--Supported Photosensitizer." Journal of Physical Chemistry B 112: 1913-17. (Books and Publications: Article (Peer-reviewed)) 2008
Castillo, A., J. F. Liebman and A. Greer. "Quinones, Monoradicals and Diradicals From 3- and 4-Mercaptocatechol, and 3,4-Bismercaptocatechol: A Computational Study of a Plausibly Biomimetic Reaction." Journal of Sulfur Chemistry 29: 445-57. (Books and Publications: Article (Peer-reviewed)) 2008
Giaimuccio, J., M. Zamadar, D. Aebisher, G. J. Meyer and A. Greer. "Singlet Oxygen Chemistry in Water. 2. Photophysics of Quenching of a Photosensitizer by O2 at the Water/Porous Glass Interface." Journal of Physical Chemistry B 112: 15646-50. (Books and Publications: Article (Peer-reviewed)) 2008
Greer, A. and D. Aebisher, editors. Special Issue: "Extreme Sulfur Chemistry." Journal of Sulfur Chemistry 29: 241-457. (Books and Publications: Article (Peer-reviewed)) 2008
Greer, A. and J. F. Liebman. "Paradigms and Paradoxes: Energetics of the Oxidative Cleavage of Azo Compounds." Structural Chemistry 19: 817-18. (Books and Publications: Article (Peer-reviewed)) 2008
Greer, E. M., D. Aebisher, A. Greer and R. Bentley. "Computational Studies of the Tropone Natural Products, Thiotropocin, Tropodithietic Acid, and Troposulfenin. Significance of Thiocarbonyl-enol Tautomerism." Journal of Organic Chemistry 73: 280-83. (Books and Publications: Article (Peer-reviewed)) 2008
"Organic Chemistry: Molecular Crosstalk." Nature 447: 273-74. (Books and Publications: Article (Peer-reviewed)) 2007
Aebisher, D., E. M. Brzostowska, M. Adaickapillai and A. Greer. "Regioselective (Biomimetic) Synthesis of a Pentasulfane from Ortho-benzoquinone." Journal of Organic Chemistry 72: 2951-55. (Books and Publications: Article (Peer-reviewed)) 2007
Aebisher, D., E.M. Brzostowska, N. Sawwan, R. Ovalle and A. Greer. "Implications for the Existence of a Heptasulfur Linkage in Natural o-Benzopolysulfanes." Journal of Natural Products 70: 1492-94. (Books and Publications: Article (Peer-reviewed)) 2007
Brzostowska, E.M., M. Paulynice, R. Bentley and A. Greer. "Planar Chirality Due to a Polysulfur Ring in Natural Pentathiepin Cytotoxins. Implications of Planar Chirality for Enantiospecific Biosynthesis and Toxicity." Chemical Research in Toxicology 20: 1046-52. (Books and Publications: Article (Peer-reviewed)) 2007
Frank, A. T., N. S. Farina, N. Sawwan, O. R. Wauchope, M. Qi, E. M. Brzostowska, W. Chan, F. W. Grasso, P. Haberfield and A. Greer. "Natural Macromolecules Have a Possible Limited Structural Diversity." Molecular Diversity 11: 115-18. (Books and Publications: Article (Peer-reviewed)) 2007
Frank, A.T., A. Adenike, D. Aebisher, A. Greer, R. Gao and J.F. Liebman. "Paradigms and Paradoxes: Energetics of the Oxidative Cleavage of Indigo." Structural Chemistry 18: 71-74. (Books and Publications: Article (Peer-reviewed)) 2007
Sawwan, N. and A. Greer. "Rather Exotic Types of Cyclic Peroxides: Heteroatom Dioxiranes." Chemical Reviews 107: 3247-85. (Books and Publications: Article (Peer-reviewed)) 2007
Wauchope, O.R., S. Shakya, N. Sawwan, J.F. Liebman and A. Greer. "Photocleavage of Plasmid DNA by Dibenzothiophene S-oxide Under Anaerobic Conditions." Journal of Sulfur Chemistry 28: 11-16. (Books and Publications: Article (Peer-reviewed)) 2007
"Christopher Foote's Discovery of the Role of Singlet Oxygen [1O2 (1∆g)] in Photosensitized Oxidation Reactions." Accounts of Chemical Research 39: 797-804. (Books and Publications: Article (Peer-reviewed)) 2006
"Preface: Organic Chemistry of Singlet Oxygen." Tetrahedron 62: 10603. (Books and Publications: Article (Peer-reviewed)) 2006
Gandra, N., Aaron T. Frank, O. Le Gendre, N. Sawwan, D. Aebisher, J.F. Liebman, K.N. Houk, A. Greer and R. Gao. "Possible Singlet Oxygen Generation from the Photolysis of Indigo Dyes in Methanol, DMSO, Water, and Ionic Liquid, 1-Butyl-3-methylimidazolium tetrafluoroborate." Tetrahedron 62: 10771-76. (Books and Publications: Article (Peer-reviewed)) 2006
Greer, A., O.R. Wauchope, N.S. Farina, P. Haberfield and J.F. Liebman. "Paradigms and Paradoxes: Mechanisms for Possible Enhanced Biological Activity of Bilaterally Symmetrical Chemicals." Structural Chemistry 17: 347-50. (Books and Publications: Article (Peer-reviewed)) 2006
Sawwan, N. and A. Greer. "The Generation of Mono- and Bis-dioxiranes from 2,3-Butanedione." Journal of Organic Chemistry 71: 5796-99. (Books and Publications: Article (Peer-reviewed)) 2006
Symposium-In-Print: "Organic Chemistry of Singlet Oxygen." Tetrahedron 62: 10603-776. (Books and Publications: Book (Edited)) 2006
Clennan, E.L., S.E. Hightower and A. Greer. "Conformationally Induced Electrostatic Stabilization of Persulfoxides. A New Suggestion for Inhibition of Physical Quenching of Singlet Oxygen by Remote Functional Groups." Journal of the American Chemical Society 127: 11819-27. (Books and Publications: Article (Peer-reviewed)) 2005
Sawwan, N., E.M. Brzostowska and A. Greer. "Substituent Effects on the Reactivity of Benzo-1,2-Dithiolan-3-one 1-Oxides and Its Possible Application to the Synthesis of DNA-Targeting Drugs." Journal of Organic Chemistry 70: 6968-71. (Books and Publications: Article (Peer-reviewed)) 2005
Brzostowska, E.M. and A. Greer. "Polysulfane Antitumor Agents from o-Benzyne. An Odd-Even Alternation Found in the Stability of Products, o-C6H4Sx (x = 1 to 8)." Journal of Organic Chemistry 69: 5483-85. (Books and Publications: Article (Peer-reviewed)) 2004
Voloshchuk, T., N.S. Farina, O.R. Wauchope, M. Kiprowska, P. Haberfield and A. Greer. "Molecular Bilateral Symmetry of Natural Products. Prediction of Selectivity of Dimeric Molecules by Density Functional Theory and Semiempirical Calculations." Journal of Natural Products 67: 1141-46. (Books and Publications: Article (Peer-reviewed)) 2004
"Perspective: A View of Unusual Peroxides." Science 302: 235-36. (Books and Publications: Article (Peer-reviewed)) 2003
Brzostowska, E.M. and A. Greer. "The Role of Amine in the Mechanism of Pentathiepin (Polysulfur) Antitumor Agents." Journal of the American Chemical Society 125: 396-404. (Books and Publications: Article (Peer-reviewed)) 2003
Singleton, D.A., M.J. Szymanski, M.P. Meyer, A.G. Leach, K.T. Kuwata, J.S. Chen, A. Greer, C.S. Foote and K.N. Houk. "Mechanism of Ene Reactions of Singlet Oxygen. A Two-Step No-Intermediate Mechanism." Journal of the American Chemical Society 125: 1319-28. (Books and Publications: Article (Peer-reviewed)) 2003
Thomas, K.B. and A. Greer. "Gauging the Significance of Atomic Oxygen [O(3P)] in Sulfoxide Photochemistry. A Method for Hydrocarbon Oxidation." Journal of Organic Chemistry 68: 1886-91. (Books and Publications: Article (Peer-reviewed)) 2003
"On the Origin of Cytotoxicity of the Natural Product Varacin. A Novel Example of a Pentathiepin Reaction that Provides Evidence for a Triatomic Sulfur Intermediate." Journal of the American Chemical Society 123: 10379-86. (Books and Publications: Article (Peer-reviewed)) 2001
Lucien, E. and A. Greer. "Electrophilic Oxidant Produced in the Photodeoxygenation of 1,2-Benzodiphenylene Sulfoxide." Journal of Organic Chemistry 66: 4576-79. (Books and Publications: Article (Peer-reviewed)) 2001
Greer, A., G. Vassilikogiannakis, K.-C. Lee, T.S. Koffas, K. Nahm and C.S. Foote. "Reaction of Singlet Oxygen with trans-4-Propenylanisole. Formation of [2 + 2] Products with Added Acid." Journal of Organic Chemistry 65: 6876-78. (Books and Publications: Article (Peer-reviewed)) 2000
Reznik, R. and A. Greer. "An Adjacent Thioester Provides Apical-Directed Stabilization to 3-Isothiazolidinone 1-Oxide Heterocycles." Chemical Research in Toxicology 13: 1193-98. (Books and Publications: Article (Peer-reviewed)) 2000
Wu, S. and A. Greer. "Attractive Through-Space S-O Interaction in the DNA-Cleaving Antitumor Antibiotic Leinamycin." Journal of Organic Chemistry 65: 4883-87. (Books and Publications: Article (Peer-reviewed)) 2000
Greer, A., K.A. Conklin, K. Faull, K.N. Houk and C.S. Foote. "Low Temperature FAB Mass and NMR Spectroscopic Identification of an Unstable Episulfoxide." Journal of Organic Chemistry 64: 1432-33. (Books and Publications: Article (Peer-reviewed)) 1999
Clennan, E.L., M.-F. Chen, A. Greer and F. Jensen. "Experimental and Computational Evidence for the Formations of Iminopersulfinic Acids." Journal of Organic Chemistry 63: 3397-3402. (Books and Publications: Article (Peer-reviewed)) 1998
Jensen, F., A. Greer and E.L. Clennan. "Reaction of Organic Sulfides with Singlet Oxygen. A Revised Mechanism." Journal of the American Chemical Society 120: 4439-49. (Books and Publications: Article (Peer-reviewed)) 1998
Greer, A., M.-F. Chen, F. Jensen and E.L. Clennan. "Experimental and ab Initio Computational Evidence for New Peroxidic Intermediates (Iminopersulfinic Acids). Substituent Effects in the Photooxidations of Sulfenic Acid Derivatives." Journal of the American Chemical Society 119: 4380-87. (Books and Publications: Article (Peer-reviewed)) 1997
Clennan, E.L. and A. Greer. "Steric and Electronic Effects on the Partitioning of a Persulfinyl Intermediate Along the Physical Quenching and Chemical Reaction Channels." Tetrahedron Letters 37: 6093-96. (Books and Publications: Article (Peer-reviewed)) 1996
Clennan, E.L. and A. Greer. "The Effect of Alcohols on the Photooxidative Behavior of Diethylsulfide." Journal of Organic Chemistry 61: 4793-97. (Books and Publications: Article (Peer-reviewed)) 1996
Greer, A., F. Jensen and E.L. Clennan. "Ring Strain Effects on the Interconversion of Intermediates in the Reaction of Organic Sulfides with Singlet Oxygen." Journal of Organic Chemistry 61: 4107-10. (Books and Publications: Article (Peer-reviewed)) 1996
Clennan, E.L., P. Dobrowolski and A. Greer. "Reaction of Singlet Oxygen with Thietane. A Novel Example of a Self-Catalyzed Reaction which Provides Evidence for a Thiadioxirane Intermediate." Journal of the American Chemical Society 117: 9800-03. (Books and Publications: Article (Peer-reviewed)) 1995
Awards, Honors and Fellowships
Mechanistic Organic Photochemistry: Dark Processes and Toxicity Priming. National Science Foundation, Division of Chemistry (CHE-2154133). (Grants and Fellowships) 2022
Levy-Kosminsky Professorship at Brooklyn College 2020 (Awards and Honors) 2020
Photocite B Award: American Society for Photobiology (Awards and Honors) 2020
Hosted Dr. Andres Durantini, Fulbright Scholar, CONICET, Universidad Nacional de Río Cuarto (Sept. 2019 - Nov. 2019). (Grants and Fellowships) 2019
Multiphase-Separation and Control of Serially Produced Reactive Oxygen. National Science Foundation, Division of Chemistry (CHE-1856765). (Grants and Fellowships) 2019
Singlet O2 Therapeutics LLC in Support of NIH for Small Business Technology Transfer Grant "3D-Printed Superhydrophobic-Tipped Optical Fiber for Targeted Periodontal Photodynamic Therapy" Qian-Feng Xu, Alexander Greer, and Alan M. Lyons of Singlet O2 Therapeutics, and Tayyaba Hasan of MGH and Harvard Medical School (R44 SBIR Phase II, National Institute of Dental and Craniofacial Research) (Grants and Fellowships) 2019
Tow Professorship at Brooklyn College (Awards and Honors) 2017
Andrés H. Thomas of the National University of La Plata, Argentina and Alexander Greer of Brooklyn College were awarded a joint CONICET-NSF grant for a research project titled "Photodynamic Therapy Using Pterins as Photosensitizers", 2015-2018. (Grants and Fellowships) 2016
Singlet O2 Therapeutics LLC in Support of NIH for Small Business Technology Transfer Grant, Alexander Greer and Alan M. Lyons of Singlet O2 Therapeutics, and Tayyaba Hasan of MGH and Harvard Medical School (R41 STTR Phase I, National Institute of Dental and Craniofacial Research) (Grants and Fellowships) 2016
Phase Separation of Reactive Oxygen with Multi-compartmented Sensitizers. National Science Foundation, Division of Chemistry (CHE-1464975). (Grants and Fellowships) 2015
George and Beatrice Schwartzman Professorship in Chemistry. (Awards and Honors) 2014
National Institute of General Medical Sciences of the National Institutes of Health, SC1 grant, for "Site-specific Delivery of Photosensitizer and Singlet Oxygen in vivo. September 2010-August 2014. (Grants and Fellowships) 2010
National Institutes of Health, SCORE grant, for "Biosynthetic Formation of Polysulfane Anticancer Agents." March 2006-February 2010. (Grants and Fellowships) 2006
Petroleum Research Fund of the American Chemical Society (Type G) grant (Awards and Honors) 2000
Research Activities
Lyons, A. M.; Greer, A.; Xu Q., inventors. Research Foundation of the City University of New York, assignee. Singlet Oxygen Generating Device for Selective Destruction of Pathogens. USA 10,835,629. November 17, 2020. 2020
Conferences, Seminars and Symposiums
Alexander Greer "Deconvolution of Photooxidation Processes using Mechanistic, Biomimetic, and Synthetic Studies" Monthly Webinar Series, American Society for Photobiology, hosted by Masaoki Kawasumi and Shobhan Gaddameedhi, March 2, 2023. (Conferences, Seminars and Symposiums: Invited Talk) 2023
Lloyd Lapoot, Belaid Malek, Britney C. Singh, Shakeela Jabeen, and Alexander Greer Key Markers of Singlet Oxygen and One-electron Oxidation Reactions in Both Biomolecules and Devices: Example of Hydrophobic Surface Increasing 1O2 Oxophilicity. 30th Inter-American Photochemical Society (I-APS) Conference, Miramar Beach, FL, January 4-7, 2023. (Conferences, Seminars and Symposiums: Conference Presentation) 2023
"Where is Photobiology and ASP Heading in the Next 25 to 50 Years" Bridge-to-the-Future Symposium. American Society for Photobiology Biennial Meeting, Albuquerque, New Mexico, September 24-28, 2022. (Conferences, Seminars and Symposiums: Invited Talk) 2022
Abedien Zabardasti, Alexander Greer, Maryam Salehnassaj Theoretical Study of S···O and Hydrogen Bond Interactions Between Trimethylsulfonium Ion and Phosphate Ions or Acids. Abstracts of Papers, 264th ACS National Meeting & Exposition, Chicago, IL, United States, August 21-25, 2022. (Conferences, Seminars and Symposiums: Conference Presentation) 2022
Alexander Greer "Mechanistic Organic Photochemistry: Photooxidation, Dark Processes, and Toxicity Priming", Saturday Morning Lectures series on "LIGHT AS REACTANT AND PRODUCT", Connecting Chemistry, Light and Life, March 5, 2022, hosted by Jean-Luc Ayitou, J. Nithyanandhan, V. Ramamurthy, Linda Shimizu, and J. Sivaguru. (Conferences, Seminars and Symposiums: Invited Talk) 2022
Andrés M. Durantini and Alexander Greer Phosphorescence Measure of Singlet Oxygen Air-Particle Transitions. Abstracts of Papers, 264th ACS National Meeting & Exposition, Chicago, IL, United States, August 21-25, 2022. (Conferences, Seminars and Symposiums: Conference Presentation) 2022
Belaid Malek, Wenchao Lu, Prabhu P. Mohapatra, Niluksha Walalawela, Shakeela Jabeen, Jianbo Liu, and Alexander Greer Transition State-to-Intermediate Continuum: Mechanistic Contrast of a Dry vs Wet Perepoxide in the Singlet Oxygen 'Ene' Reaction. Reaction Mechanisms Conference, Boulder, CO, United States, June 12-15, 2022. (Conferences, Seminars and Symposiums: Conference Presentation) 2022
Caroline Coradi Tonon, Presenter; Shoaib Ashraf; Alessandra Nara de Sousa Rastelli; Goutam Ghosh; Tayyaba Hasan; QianFeng Xu; Alexander Greer; Alan Lyons Inactivation of periodontal biofilm with singlet oxygen delivered as a gas from a superhydrophobic photosensitizer. 263rd American Chemical Society National Meeting & Exposition, San Diego, CA, United States, March 20-24, 2022. (Conferences, Seminars and Symposiums: Conference Presentation) 2022
Durantini, Andrés; Greer, Alexander Medidas de fosforescencia resuelta en el tiempo de oxígeno singlete y su dependencia con un ángulo de intersección. VI Reunión del Grupo Argentino de Fotobiología (GRAFOB), Modalidad Virtual, Rosario, Santa Fe, Argentina, May 3-6, 2022. (Conferences, Seminars and Symposiums: Contributed Talk) 2022
Edyta Greer; Victor Siev; Ayelet Segal; Alexander Greer; Charles Doubleday Theoretical evidence for tunneling of carbon and hydrogen atom tunneling in a four-step reaction from quinone methide of cannabigerolic acid to tetrahydrocannabinol. 263rd American Chemical Society National Meeting & Exposition, San Diego, CA, United States, March 20-24, 2022. (Conferences, Seminars and Symposiums: Conference Presentation) 2022
Goutam Ghosh and Alexander Greer Effect of Secondary Photosensitization on the Degradation of Initially Formed Peroxides to Extend Oxyradicals' Reach. Abstracts of Papers, 264th ACS National Meeting & Exposition, Chicago, IL, United States, August 21-25, 2022. (Conferences, Seminars and Symposiums: Conference Presentation) 2022
H. B. Ihalagedara, QF. Xu, A. Greer and A. M. Lyons Effect of incident wavelength on singlet oxygen generation: Excitation of the Soret band vs Q band of a photosensitizer-immobilized superhydrophobic surface. Middle Atlantic Regional Meeting (MARM), American Chemical Society, Ewing, NJ, United States, June 1-4, 2022. (Conferences, Seminars and Symposiums: Conference Presentation) 2022
Hasanuwan Ihalagedara, QianFeng Xu, Alexander Greer, and Alan M. Lyons Effect of Incident Wavelength on Singlet Oxygen Generation: Comparative Analysis of Photosensitizer in Solution and Immobilized on Superhydrophobic Surface. 41st American Society for Photobiology Biennial Meeting, Albuquerque, NM, September 25-28, 2022. (Conferences, Seminars and Symposiums: Conference Presentation) 2022
José Luis Fonseca Castro, M. José Sosa, Gabriela Petroselli, Rosa Erra-Balsells, Matías I. Quindt, Alexander Greer, Edyta M. Greer, Sergio M. Bonesi, Andrés H. Thomas, Mariana Vignoni A New Folate Derivative with Affinity to Biomembranes. Bis-decyl Pteroic Acid: Synthesis, Structural Characterization and Photochemical Properties. Abstracts of Papers, 264th ACS National Meeting & Exposition, Chicago, IL, United States, August 21-25, 2022. (Conferences, Seminars and Symposiums: Conference Presentation) 2022
José Luis Fonseca Castro, M. José Sosa, Gabriela Petroselli, Rosa Erra-Balsells, Matías I. Quindt, Alexander Greer, Edyta M. Greer, Sergio M. Bonesi, Andrés H. Thomas, Mariana Vignoni Synthesis, Characterization, and Photocleavage of Bis-decyl Pteroic Acid: A Folate Derivative with Affinity to Biomembranes. 41st American Society for Photobiology Biennial Meeting, Albuquerque, NM, September 25-28, 2022. (Conferences, Seminars and Symposiums: Conference Presentation) 2022
Lecture on Molecular and Photosciences in Chemistry (Mariam Alex and Alexander Greer), Ms. Rebecca Torres's AP science class and chemistry honors class (~60 students total), Clarkstown North High School, New City, NY, December 22, 2022. (Conferences, Seminars and Symposiums: Contributed Talk) 2022
Lecture on Photosciences in Chemistry and Therapy (Oliver Turque, Ikhil Yevdayev, Sharon Yunayev, and Alexander Greer), Bard High School Early College, Queens, NY, Dr. J. Muklall's Organic Chemistry class, May 24, 2022. (Conferences, Seminars and Symposiums: Contributed Talk) 2022
Lecture on Photosciences in Chemistry and Therapy (Oliver Turque, Ikhil Yevdayev, Sharon Yunayev, and Alexander Greer), Hamden Hall Country Day School, Hamden CT, Dr. F. Gasparro's Science, Innovation & Design Signature STEM Program, May 26, 2022. (Conferences, Seminars and Symposiums: Contributed Talk) 2022
Lloyd Lapoot, Shakeela Jabeen, Belaid Malek, Wenchao Lu, Prabhu P. Mohapatra, Niluksha Walalawela, Jianbo Liu, and Alexander Greer Probing the Transition State-to-Intermediate Continuum: Mechanistic Distinction Between a Dry vs Wet Perepoxide in the Singlet Oxygen 'Ene' Reaction at the Air-Water Interface. Abstracts of Papers, 264th ACS National Meeting & Exposition, Chicago, IL, United States, August 21-25, 2022. (Conferences, Seminars and Symposiums: Conference Presentation) 2022
Oliver Turque, Ryan M. O'Connor, Alexander Greer "A Twist on Disulfide S-S Bond Rotation Facilitated by Reactive Oxygen On- and Off-loading" 29th International Symposium on the Organic Chemistry of Sulfur, University of Guelph, July 17-22, 2022. (Conferences, Seminars and Symposiums: Conference Presentation) 2022
Oliver Turque, Ryan M. O'Connor, and Alexander Greer Mechanism of Conformational Flexibility at the Disulfide Bond: Role of Singlet Oxygen Addition and Elimination. Abstracts of Papers, 264th ACS National Meeting & Exposition, Chicago, IL, United States, August 21-25, 2022. (Conferences, Seminars and Symposiums: Conference Presentation) 2022
Oliver Turque, Ryan M. O'Connor, and Alexander Greer Singlet Oxygen's Potential Role as a Nonoxidative Facilitator of Disulfide S-S Bond Rotation. 41st American Society for Photobiology Biennial Meeting, Albuquerque, NM, September 25-28, 2022. (Conferences, Seminars and Symposiums: Conference Presentation) 2022
Pérez, Eugenia; Jabeen, Shakeela; Martínez, Sol; Natera, José; Greer, Alexander; Durantini, Andrés Fotooxidación de sustratos adsorbidos sobre SiO2 mediada por oxígeno singlete monitoreando fluorescencia a nivel partículas individuales. VI Reunión del Grupo Argentino de Fotobiología (GRAFOB), Modalidad Virtual, Rosario, Santa Fe, Argentina, May 3-6, 2022. (Conferences, Seminars and Symposiums: Contributed Talk) 2022
Shakeela Jabeen, Belaid Malek, Wenchao Lu, Prabhu P. Mohapatra, Niluksha Walalawela, Jianbo Liu, and Alexander Greer Straddling the intermediate-to-transition state boundary: Mechanistic distinction between a dry vs wet perepoxide in the 'ene' singlet oxygen reaction. Middle Atlantic Regional Meeting (MARM), American Chemical Society, Ewing, NJ, United States, June 1-4, 2022. (Conferences, Seminars and Symposiums: Conference Presentation) 2022
Shakeela Jabeen, Goutam Ghosh, Lloyd Lapoot, Andrés M. Durantini, and Alexander Greer Biomimetic Photooxidation to Reach a Tremetone-like Natural Product: Solvent and Total Singlet Oxygen Quenching Studies. 41st American Society for Photobiology Biennial Meeting, Albuquerque, NM, September 25-28, 2022. (Conferences, Seminars and Symposiums: Conference Presentation) 2022
Shakeela Jabeen; Andres Durantini, Presenter; Alexander Greer Theoretical evidence for an iso-hydroperoxide intermediate in the singlet oxygenation of the prenyl natural product glycocitrine. 263rd American Chemical Society National Meeting & Exposition, San Diego, CA, United States, March 20-24, 2022. (Conferences, Seminars and Symposiums: Conference Presentation) 2022
Shakeela Jabeen; Lloyd Lapoot, Presenter; Ryan O'Connor; Alexander Greer Adjuvanticity of natural compounds vs repurposed drugs. Seeking potent combinations for photodynamic action. 263rd American Chemical Society National Meeting & Exposition, San Diego, CA, United States, March 20-24, 2022. (Conferences, Seminars and Symposiums: Conference Presentation) 2022
Siddharth Matikonda; Dominic Helmerich; Mara Meub; Gerti Beliu; Philip Kollmannsberger; Alexander Greer; Markus Sauer; Martin Schnermann Mechanistic Basis and Implications of Cyanine Phototruncation. 263rd American Chemical Society National Meeting & Exposition, San Diego, CA, United States, March 20-24, 2022. (Conferences, Seminars and Symposiums: Conference Presentation) 2022
Mono- and bis-alkylated lumazine sensitizers: Synthetic, molecular orbital theory, nucleophilic index, and photochemical studies. M. José Sosa, María Noel Urrutia, Patricia L. Schilardi, Matías I. Quindt, Sergio Bonesi, Dobrushe Denburg, Mariana Vignoni, Alexander Greer, Edyta M. Greer, Andrés H. Thomas, 261st ACS National Meeting & Exposition, United States, April 5-30, 2021 (virtual poster). (Conferences, Seminars and Symposiums: Conference Presentation) 2021
Adjuvant compound analysis for mechanistic insight to promote photodynamic action
Shakeela Jabeen, Lloyd Lapoot, Ryan M. O'Connor, Michael Zatoulovski, and Alexander Greer, 261st ACS National Meeting & Exposition, United States, April 5-30, 2021 (virtual poster). (Conferences, Seminars and Symposiums: Conference Presentation) 2021
Alburquerque, José Quílez; Tonon, Caroline Coradi; Ashraf, Shoaib; Nara De Sousa Rastelli, Alessandra; Hasan, Tayyaba; Lyons, L. Alan; Greer, Alexander Insight into antimicrobial photodynamic inactivation from topical and superhydrophobic sensitizer techniques. Brooklyn College Science Day, May 7, 2021. (Conferences, Seminars and Symposiums: Conference Presentation) 2021
Alkoxy radical mobility on a surface as assessed by recombination to symmetrical product. Sarah J. Belh, Goutam Ghosh, and Alexander Greer, 261st ACS National Meeting & Exposition, United States, April 5-30, 2021 (virtual talk). (Conferences, Seminars and Symposiums: Contributed Talk) 2021
Caroline Coradi Tonon, Shoaib Ashraf, Alessandra Nara de Sousa Rastelli, Goutam Ghosh, Tayyaba Hasan, QianFeng Xu, Alexander Greer, Alan M. Lyons "In-vitro activity of Superhydrophobic Photodynamic Therapy against Multispecies Periodontal Biofilm" International Association for Dental Research (IADR), July 21-24, 2021. (Conferences, Seminars and Symposiums: Contributed Talk) 2021
Caroline Coradi Tonon, Shoaib Ashraf, Alessandra Nara de Sousa Rastelli, Goutam Ghosh, Tayyaba Hasan, QianFeng Xu, Alexander Greer, and Alan M. Lyons "Multispecies Periodontal Biofilm Inactivation using a Superhydrophobic Photodynamic Therapy Device," SPIE Photonics West Digital Forum, March 6-11, 2021. (Conferences, Seminars and Symposiums: Contributed Talk) 2021
Chemistry Involving Light in Science and Organic Synthesis (Genevieve Clancy, Ryan O'Connor, and Alexander Greer), Brewster High School, NY, Daniel Carelton's Science Class, March 15, 2021. (Conferences, Seminars and Symposiums: Contributed Talk) 2021
Chemistry Involving Light in Science and Organic Synthesis (Mahir Rashid and Alexander Greer), Francis Lewis High School, Fresh Meadows, NY, Dr. Lingyan Wang's Science Class, March 23, 2021. (Conferences, Seminars and Symposiums: Contributed Talk) 2021
Chemistry Involving Light in Science and Organic Synthesis (Ryan O'Connor and Alexander Greer), Murrow High School, in Dr. Nazarov's Science Class, Brooklyn, NY, November 19, 2021. (Conferences, Seminars and Symposiums: Contributed Talk) 2021
Denburg, Dobrushe; Sosa, María José; Vignoni, Mariana; Urrutia, María Noel; Quindt, Matías I.; Bonesi, Sergio; Greer, Alexander, Thomas, Andrés H.; Greer, Edyta M. "Photochemical and photophysical study of bis-alkylated lumazine and pterin photosensitizers." Innovations in Organic Chemistry, Middle Atlantic Regional Meeting (MARM), American Chemical Society, Newark, DE, United States, June 9-11, 2021. (Conferences, Seminars and Symposiums: Conference Presentation) 2021
Detección Directa y Delivery de Oxígeno Singlete Volatil en Interfases Aire/Sólido, Andrés M. Durantini and Alexander Greer, XXII CAFQI Meeting Congreso Argentino de Fisicoquímica y Química Inorgánica, La Plata (Argentine Conference of Physical Chemistry and Inorganic Chemistry), April 19, 21, 23, 27, 29, 2021. (Conferences, Seminars and Symposiums: Contributed Talk) 2021
Environmental Photoscience and Photochemistry (Ryan O'Connor, Maya Szewczyk, Genevieve Clancy, and Alexander Greer), Brewster High School, NY, Mr. Carlton's Chemistry class and Ms. Boehm's AP Environmental Science class, December 3, 2021. (Conferences, Seminars and Symposiums: Contributed Talk) 2021
Fatty acid conjugates of toluidine blue O as amphiphilic photosensitizers: Synthesis, solubility, photophysics, and photochemical properties. José Robinson-Duggon, Nancy Pizarro, Germán Gunther, Daniel Zúñiga-Núñez, Ana María Edwards, Alexander Greer and Denis Fuentealba, 261st ACS National Meeting & Exposition, United States, April 5-30, 2021 (virtual poster). (Conferences, Seminars and Symposiums: Conference Presentation) 2021
Interparticle delivery and detection of volatile singlet oxygen at air/solid interfaces. Andrés M. Durantini and Alexander Greer, 261st ACS National Meeting & Exposition, United States, April 5-30, 2021 (virtual poster). (Conferences, Seminars and Symposiums: Conference Presentation) 2021
Jabeen, Shakeela; Lapoot, Lloyd; O'Connor, Ryan M.; Greer, Alexander "Adjuvanticity of Natural Products and Repurposed Drugs: Seeking Potent Combinations for Photodynamic Action", 49th Physical Organic Mini-Symposium (POMS), Waterloo, ON, Canada, November 14, 2021. (Conferences, Seminars and Symposiums: Conference Presentation) 2021
Jabeen, Shakeela; Lapoot, Lloyd; O'Connor, Ryan M.; Zatoulovski, Michael; Greer, Alexander "Adjuvant compound analysis for mechanistic insight to promote photodynamic action". Innovations in Organic Chemistry, Middle Atlantic Regional Meeting (MARM), American Chemical Society, Newark, DE, United States, June 9-11, 2021. (Conferences, Seminars and Symposiums: Conference Presentation) 2021
Mechanistic Organic Photochemistry: Dark Processes and Toxicity Priming, Alexander Greer, European Society for Photobiology, Salzburg, Austria, August 30-September 3, 2021. (Conferences, Seminars and Symposiums: Contributed Talk) 2021
Mechanistic Organic Photochemistry: Photogeneration of Reactive Oxygen Intermediates in Solution and on Nanoparticle Interfaces, Alexander Greer, International Webinar on Functional Nanomaterials, Chemistry, and Biointeractions, Khorramabad, Iran, April 20 & 21, 2021. (Conferences, Seminars and Symposiums: Contributed Talk) 2021
Mechanistic Organic Photochemistry: Photooxidation, Dark Processes, and Toxicity Priming, Alexander Greer, 49th Physical Organic Mini-Symposium (POMS), Waterloo, ON, Canada, November 14, 2021. (Conferences, Seminars and Symposiums: Contributed Talk) 2021
Mechanistic Organic Photochemistry: Photooxidation, Dark Processes, and Toxicity Priming, Alexander Greer, Seminar, Department of Chemistry, Hunter College of CUNY, November 5, 2021. (Conferences, Seminars and Symposiums: Invited Talk) 2021
Mechanistic Organic Photochemistry: Toxicity Priming and Dark Processes, Alexander Greer, at Mahesh Lakshman's 20th Anniversary Symposium, City College of New York, February 26, 2021. (Conferences, Seminars and Symposiums: Contributed Talk) 2021
Tonon, Caroline Coradi; Ashraf, Shoaib; Nara de Sousa Rastelli, Alessandra; Ghosh, Goutam; Hassan, Tayyaba; Xu, QianFeng; Greer, Alexander Superhydrophobic antimicrobial photodynamic inactivation of bacterial biofilm with airborne singlet oxygen. Innovations in Organic Chemistry, Middle Atlantic Regional Meeting (MARM), American Chemical Society, Newark, DE, United States, June 9-11, 2021. (Conferences, Seminars and Symposiums: Conference Presentation) 2021
Tonon, Caroline Coradi; Ashraf, Shoaib; Nara de Sousa Rastelli, Alessandra; Ghosh, Goutam; Hassan, Tayyaba; Xu, QianFeng; Greer, Alexander; Lyons, Alan M. Evaluation of Photosensitizer-Containing Superhydrophobic Surfaces for the Antibacterial Treatment of Periodontal Biofilms, European Society for Photobiology, Salzburg, Austria, August 30-September 3, 2021. (Conferences, Seminars and Symposiums: Conference Presentation) 2021
Tonon, Coradi Caroline; Ashraf, Shoaib; Alburquerque, José Quílez; Nara de Sousa Rastelli, Alessandra; Hasan, Tayyaba; Lyons, Alan; Greer, Alexander Insight into antimicrobial photodynamic inactivation from topical and superhydrophobic sensitizer techniques. 261st ACS National Meeting & Exposition, United States, April 5-30, 2021. (Conferences, Seminars and Symposiums: Conference Presentation) 2021
Trapping of alkoxy radicals photogenerated at the air/solid interface of a nanoparticle with para-substituted aryl phosphites. Goutam Ghosh and Alexander Greer, 261st ACS National Meeting & Exposition, United States, April 5-30, 2021 (virtual poster). (Conferences, Seminars and Symposiums: Conference Presentation) 2021
Using Light in Chemistry and Life Sciences (Ryan O'Connor, Dave Dodson, and Alexander Greer), Bard High School, New York, NY, Dr. Felisa Lerum's Chemistry Class, November 22, 2021. (Conferences, Seminars and Symposiums: Contributed Talk) 2021
Using Light in Science: Photobiology and Photomedicine (Devora Baker, Ryan O'Connor, and Alexander Greer), Prospect Park Bnos Leah High School, Mrs. H. Wiederkehr's Advanced Biology and Human Biology Classes, November 30, 2021. (Conferences, Seminars and Symposiums: Contributed Talk) 2021
Visible-light photoisomerization of alkenes and polyenes: The role of molecular oxygen. Oliver Turque, Alexander Greer, Orrette R. Wauchope, 261st ACS National Meeting & Exposition, United States, April 5-30, 2021 (virtual talk). (Conferences, Seminars and Symposiums: Contributed Talk) 2021
40th American Society for Photobiology (ASP) Biennial Virtual Meeting. Publishing Forum "Specific and General Approaches to Publishing: Resonance Between ASP Activity and Supporting Our Society's Journal" July 28-30, 2020. (Conferences, Seminars and Symposiums: Invited Talk) 2020
Caroline Coradi Tonon; Shoaib Ashraf; José Quílez Alburquerque; Alessandra Nara de Sousa Rastelli; Tayyaba Hasan; Alan M. Lyons; Alexander Greer "Can molecular diffusion in biofilms serve as a guide for antimicrobial photodynamic inactivation?" V GRAFOB (Fifth Meeting of the Argentine Group of Photobiology) Virtual Modality. Sept. 16, 2020.
(Conferences, Seminars and Symposiums: Contributed Talk) 2020
Deducing Mobility of Ethoxy and Cumyloxy Radicals on Fumed Silica Surfaces based on Recombination Products. Belh, Sarah J.; Ghosh, Goutam; Jabeen, Shakeela; Greer, Alexander, 259th ACS National Meeting & Exposition, Philadelphia, PA, United States, March 22-26, 2020, ORGN-0553 (virtual poster). (Conferences, Seminars and Symposiums: Conference Presentation) 2020
Direct Detection of Airborne Singlet Oxygen from Porous Vycor Glass Particles Adsorbed with a Brominated BODIPY Photosensitizer. Durantini, Andrés M.; Greer, Alexander, 259th ACS National Meeting & Exposition, Philadelphia, PA, United States, March 22-26, 2020, ORGN-0552 (virtual poster). (Conferences, Seminars and Symposiums: Conference Presentation) 2020
Multistage Oxidative Events: Deciphering Mechanisms Downstream from Photooxidative Reactions, Alexander Greer, Brooklyn College Cancer Center (CommUnity Outreach, Research and Education) BCCC-CURE, October 30, 2020. (Conferences, Seminars and Symposiums: Contributed Talk) 2020
Photochemistry, Photobiology, and Photomedicine (Mommina Ashaque and Alexander Greer), online lecture, Hillcrest High School, Jamaica, NY, Ms. Reilly Gasior's Science Class on May 11, 2020. (Conferences, Seminars and Symposiums: Contributed Talk) 2020
Photochemistry, Photobiology, and Photomedicine: Using Light and Photons in Science and Synthesis (Christa Mathew and Alexander Greer), West Islip High School, NY, Mary Kroll's Science Class, on December 11th and 14th, 2020. Eight online lectures delivered to Skills Research - Grade 9, STEM Academy Research - Grade 9, Biotechnology Research - Grade 10, Advanced Research - Grades 11 & 12, and the Science National Honor Society. (Conferences, Seminars and Symposiums: Contributed Talk) 2020
Photochemistry, Photobiology, and Photomedicine: Using Light and Photons in Science and Synthesis (Ryan O'Connor and Alexander Greer), Brewster High School, NY, Daniel Carelton's Science Class, on November 17, 2020. (Conferences, Seminars and Symposiums: Contributed Talk) 2020
Photochemistry, Photobiology, and Photomedicine: Using Light and Photons in Science and Synthesis (Ryan O'Connor and Alexander Greer), Edward R. Murrow High School, NY, Science Classes of Miriham Sahin, Patricia Diaz, and Howie Wong, on November 20th and 25th, 2020. Nine online lectures delivered to ~302 students. (Conferences, Seminars and Symposiums: Contributed Talk) 2020
Sarah J. Belh; Niluksha Walalawela; Stas Lekhtman; Alexander Greer "Dark Processes Relevant to Reducing (or Enhancing) Photosensitized Oxidation" V GRAFOB (Fifth Meeting of the Argentine Group of Photobiology) Virtual Modality. Sept. 4, 2020.
(Conferences, Seminars and Symposiums: Contributed Talk) 2020
Sunlight and Lasers (Hamzah Daoud and Alexander Greer), Millennium Brooklyn High School, Mr. Said Mohamed's Science Class, February 27, 2020. (Conferences, Seminars and Symposiums: Contributed Talk) 2020
Sunlight and Lasers (Hamzah Daoud and Alexander Greer), online lecture, Midwood High School, Ms. Khanum's Science Class on May 11, 2020. (Conferences, Seminars and Symposiums: Contributed Talk) 2020
Synthesis, Characterization, and Initial Membrane Binding Properties of Mono- and Gemini-Decyl-Chain Lumazines. Sosa, Maria Jose; Vignoni, Mariana; Castro, Jose Luis Fonseca; Schilardi, Patricia; Urrutia, Maria Noel; Junqueira, Helena; Baptista, Mauricio S.; Itri, Rosangela; Walalawela, Niluksha; Ghosh, Goutam; Thomas, Andres; Greer, Alexander, 259th ACS National Meeting & Exposition, Philadelphia, PA, United States, March 22-26, 2020, ORGN-0550 (virtual poster). (Conferences, Seminars and Symposiums: Conference Presentation) 2020
Using Light and Photons in Science and Synthesis (Maria Farag and Alexander Greer), lectures to five periods of Mrs. Patterson's Scholar's Chemistry and Honors Chemistry classes (total of about 140 students) at Susan E. Wagner High School in Staten Island on Feb 28, 2020. (Conferences, Seminars and Symposiums: Contributed Talk) 2020
A. Greer, 2019 National Civic Leadership Forum, Asian American Asian Research Institute, Crown Plaza, Arlington, VA, September 15, 2019. (Conferences, Seminars and Symposiums: Invited Talk) 2019
A. Greer, The New Normal: The Perils of Being a Chinese Scientist in the US. Panel Member: A New "Red Scare?": Racial Profiling vs. Chasing Spies. The China Institute, New York, June 27, 2019.
(Conferences, Seminars and Symposiums: Conference Presentation) 2019
Alexander Greer, Suzanne W. Slayden, and Joel F. Liebman, "On the Origin of Hues of Elemental Nonmetals: Where is the Chromophore?", Southwest and Rocky Mountain Regional Meeting of the American Chemical Society, El Paso, Texas, November 13-16, 2019. (Conferences, Seminars and Symposiums: Conference Presentation) 2019
Alkane Chain-Extended Pterin through a Pendent Carboxylic Acid acts as Triple Functioning Fluorophore, 1O2 Sensitizer, and Membrane Binder. Sarah J. Belh, Niluksha Walalawela, María Noel Urrutia, Andrés H. Thomas, Alexander Greer, Mariana Vignoni, Middle Atlantic Regional Meeting of the American Chemical Society, Baltimore, MD, May 30 - June 1, 2019. (Conferences, Seminars and Symposiums: Conference Presentation) 2019
Brooklyn College Science Retreat, Alexander Greer, Student Union, Brooklyn, NY, May 2. (Conferences, Seminars and Symposiums: Contributed Talk) 2019
Conformation Dependent Dual Function of a 1,2-Diketone for Sensitized Photooxidation and Thermal Binding. Alexander Greer, American Society for Photobiology (ASP) Presidential Evening Symposia-Photochemistry and Photobiology: From Molecules to Medicine, Chicago, IL, May 9-10, 2019. (Conferences, Seminars and Symposiums: Invited Talk) 2019
David Aebisher, Dorota Bartusik-Aebisher, Sarah J. Belh, Goutam Ghosh, Yang Liu, QianFeng Xu, Alan M. Lyons, Alexander Greer, "Superhydrophobic Sandwich System to Facilitate a Contact-free 1O2 Delivery: Efficient 20-µm Transport of Airborne Singlet Oxygen", Southwest and Rocky Mountain Regional Meeting of the American Chemical Society, El Paso, Texas, November 13-16, 2019. (Conferences, Seminars and Symposiums: Conference Presentation) 2019
Goutam Ghosh, Huimin Yin, Susan M. A. Monro, Tariq Sainuddin, Lloyd Lapoot, Alexander Greer, and Sherri A. McFarland, "Synthesis and Characterization of Ru(II) Complexes with π-Expansive Imidazophen Ligands for the Photokilling of Human Melanoma Cells", Southwest and Rocky Mountain Regional Meeting of the American Chemical Society, El Paso, Texas, November 13-16, 2019. (Conferences, Seminars and Symposiums: Conference Presentation) 2019
Interfacial Strategies to Study Reactive Oxygen Intermediates Produced using Photosensitization. Alexander Greer, 18th Congress of the European Society for Photobiology, Barcelona, Spain, August 25-30, 2019. (Conferences, Seminars and Symposiums: Invited Talk) 2019
Mechanism of Photogenerated Reactive Oxygen Species, Alexander Greer, Research Symposium Commemorating Robert Engel's 51st Year at Queens College (Campbell Dome), Flushing, NY November 1, 2019. (Conferences, Seminars and Symposiums: Invited Talk) 2019
Mechanism of Reactive Oxygen Intermediates: Probing Not Only Their Light, but Also Dark Reactions in Photochemistry, Alexander Greer, Department of Chemistry, University of Nebraska, Lincoln, October 11, 2019. (Conferences, Seminars and Symposiums: Invited Talk) 2019
Mechanism of Reactive Oxygen Species, Alexander Greer, Department of Chemistry, Ohio University, Athens, OH, October 28, 2019. (Conferences, Seminars and Symposiums: Invited Talk) 2019
Multistage Oxidative Events: Deciphering Mechanisms Downstream from Photooxidative Reactions. Alexander Greer, Gordon Research Conference on Photochemistry, Easton, MA, July 14-19, 2019. (Conferences, Seminars and Symposiums: Invited Talk) 2019
Photochemistry and Photobiology for High School Students (Sarah Belh and Alexander Greer), Brooklyn College High School Chemistry Day, November 8, 2019. (Conferences, Seminars and Symposiums: Contributed Talk) 2019
Sarah J. Belh, Niluksha Walalawela, Stas Lekhtman, and Alexander Greer, "Secondary Thermal-Binding Process Relevant to Preventing Photooxidative Damage", New Horizons in Physical Organic Chemistry Symposium at the Southwest and Rocky Mountain Regional Meeting of the American Chemical Society, El Paso, Texas, November 13-16, 2019. (Conferences, Seminars and Symposiums: Invited Talk) 2019
Superhydrophobic Microtips: Singlet Oxygen Delivery to Biological Sites without Direct Sensitizer Contact. Sarah J. Belh, Goutam Ghosh, Niluksha Walalawela, QianFeng Xu, Alessandra Nara de Souza Rastelli, Tayyaba Hasan, Alan M. Lyons, Alexander Greer International Photodynamic Association World Congress, Boston, MA, June 28 - July 4, 2019. (Conferences, Seminars and Symposiums: Conference Presentation) 2019
Superhydrophobic Microtips: Singlet Oxygen Delivery to Biological Sites without Direct Sensitizer Contact. Sarah J. Belh, Goutam Ghosh, Niluksha Walalawela, QianFeng Xu, Alessandra Nara de Souza Rastelli, Tayyaba Hasan, Alan M. Lyons, Alexander Greer Middle Atlantic Regional Meeting of the American Chemical Society, Baltimore, MD, May 30 - June 1, 2019. (Conferences, Seminars and Symposiums: Conference Presentation) 2019
Synthesis and characterization of a fluorinated alkyl chain pterin. Alyssa Kattan, Sarah J. Belh, Derek C. Perry, Niluksha Walalawela, Mariana Vignoni, Andrés H. Thomas, Alexander Greer Middle Atlantic Regional Meeting of the American Chemical Society, Baltimore, MD, May 30 - June 1, 2019. (Conferences, Seminars and Symposiums: Conference Presentation) 2019
Fatty Acid Derivatives of Toluidine Blue and Their Inclusion Complexes for Photodynamic Therapy, José Robinson-Duggon, Francisco Pérez-Mora, Nory Mariño Ocampo, Marcelo Muñoz, Ana María Edwards, Alexander Greer, Denis Fuentealba, 27th Photochemistry IUPAC Meeting, Dublin, Ireland July 8-13, 2018. (Conferences, Seminars and Symposiums: Conference Presentation) 2018
Interfacial Strategies to Study Reactive Oxygen Intermediates, Alexander Greer, 27th Photochemistry IUPAC Meeting, Dublin, Ireland July 8-13, 2018. (Conferences, Seminars and Symposiums: Contributed Talk) 2018
Kinetic Control in the Alkylation of Pterin Photosensitizers: Synthetic, Photochemical, and Theoretical Studies. Niluksha Walalawela, Mariana Vignoni, María Noel Urrutia, Sarah J. Belh, Edyta M. Greer, Andrés H. Thomas, and Alexander Greer 256th American Chemical Society National Meeting, Boston, MA, August 19-23, 2018. (Conferences, Seminars and Symposiums: Conference Presentation) 2018
Kinetic Control in the Alkylation of Pterin Photosensitizers: Synthetic, Photochemical, and Theoretical Studies. Walalawela, N.; Vignoni, M.; Urrutia, M. N.; Belh, S. J.; Greer, E. M.; Thomas, A. H.; Greer, A. 2018 Biennial Meeting American Society for Photobiology Tampa Bay, Florida, May 12-15, 2018. (Conferences, Seminars and Symposiums: Conference Presentation) 2018
On the Mechanism of Photodemethylation of Toluidine Blue, Including a Preliminary Study of Fatty Acid-toluidine Blue Sensitizer Conjugates. Robinson-Duggon, Jose; Perez-Mora, Francisco; Marino Ocampo, Nory; Munoz, Marcelo; Edwards, Ana Maria; Greer, Alexander; Fuentealba, Denis, 70th Southeastern Regional Meeting of the American Chemical Society, Augusta, GA, United States, October 31-November 3, 2018, SERMACS-255. (Conferences, Seminars and Symposiums: Conference Presentation) 2018
Phospholipid Membrane Damage Produced by Photosensitization with Decylpterins. Vignoni, M.; Urrutia M. N.; Junqueira, H. C.; Greer, A.; Reis, A.; Baptista, M. S.; Itri, R.; Thomas, A. H. 2018 Biennial Meeting American Society for Photobiology Tampa Bay, Florida, May 12-15, 2018. (Conferences, Seminars and Symposiums: Conference Presentation) 2018
Photochemistry and Photobiology for High School Students (Sarah J. Belh and Alexander Greer), Brooklyn College High School Chemistry Day, October 26. (Conferences, Seminars and Symposiums: Contributed Talk) 2018
Photooxidative action of a lipophilic pterin sensitizer: Probing type I an type II photosensitized oxidation mechanisms. Vignoni, Mariana; Urrutia, Maria Noel; Junqueira, Helena; Greer, Alexander; Reis, Ana; Baptista, Mauricio S.; Itri, Rosangela; Thomas, Andres H., 70th Southeastern Regional Meeting of the American Chemical Society, Augusta, GA, United States, October 31-November 3, 2018, SERMACS-72. (Conferences, Seminars and Symposiums: Contributed Talk) 2018
Photoscience: Chemical Reactions Triggered by the Use of Lasers and Sunlight, Ms. Joy's Sophomore Science Class (4 lectures with Sayuj Zachariah), John Bowne High School, Flushing, Queens, February 5. (Conferences, Seminars and Symposiums: Contributed Talk) 2018
Superhydrophobic Photosensitizers: Airborne 1O2 Killing of an In vitro Oral Biofilm at the Plastron Interface. Smruti Pushalkar, Goutam Ghosh, QianFeng Xu, Yang Liu, Ashwini A. Ghoghare, Cecilia Atem, Alexander Greer, Deepak Saxena, and Alan M. Lyons 256th American Chemical Society National Meeting, Boston, MA, August 19-23, 2018. (Conferences, Seminars and Symposiums: Conference Presentation) 2018
Superhydrophobic Surface Engineering Considerations for an Enhanced 1O2 Output: A Theoretical Evaluation of Maximizing the Sensitizer Population in the Plastron. Sarah J. Belh, Goutam Ghosh, QianFeng Xu, Alan M. Lyons, and Alexander Greer 256th American Chemical Society National Meeting, Boston, MA, August 19-23, 2018. (Conferences, Seminars and Symposiums: Conference Presentation) 2018
Bridges in Photochemistry: The Photosciences from Water Purification to Medicine, New York City College of Technology, Alexander Greer, March 23, 2017. (Conferences, Seminars and Symposiums: Invited Talk) 2017
Brooklyn College Science Retreat, Alexander Greer, Student Union, Brooklyn, NY, December 1. (Conferences, Seminars and Symposiums: Contributed Talk) 2017
Effect of Irradiance on Singlet Oxygen Generation and Photobleaching of Photosensitizer Molecules Immobilized on Silica Surfaces. Ghosh, Goutam; Liu, Yang; Lyons, Alan M.; Greer, Alexander, 254th ACS National Meeting & Exposition, Washington, DC, USA, August 20-24, 2017, ORGN-180. (Conferences, Seminars and Symposiums: Conference Presentation) 2017
Evidence for Peroxide Intermediates in Intralipid Photooxidations from 31P and 1H NMR Studies. Implications for Lipid Peroxidations, Superficial Photodynamic Therapy, and Tissue-Simulating Phantoms, American Society for Photobiology, Presidential Symposium, Symposium II: "Excited States in Photomedicine: from Mechanisms to Translation" San Diego, CA, April 7, 2017
(Conferences, Seminars and Symposiums: Contributed Talk) 2017
Evidence for peroxide intermediates in intralipid photooxidations from 31P and 1H NMR studies: Implications for lipid peroxidations, photodynamic therapy, and tissue-simulating phantoms. Mohapatra, Prabhu P.; Chiemezie, Callistus; Kligman, Arina; Kim, Michele; Zhu, Timothy; Greer, Alexander, 254th ACS National Meeting & Exposition, Washington, DC, USA, August 20-24, 2017, ORGN-181. (Conferences, Seminars and Symposiums: Conference Presentation) 2017
Experimental and DFT Computational Evidence for New Nitrosamine Peroxide Intermediates Generated by Photooxidation. Ghogare, Ashwini; Debaz, Ciro; Silva, Marilene; Abramova, Inna; Mohapatra, Prabhu P.; Kwon, Kitae; Greer, Edyta; Prado, Fernanda Manso; Valerio, Hellen Paula; Di Mascio, Paolo; Greer, Alexander, 45th Middle Atlantic Regional Meeting of the American Chemical Society, Hershey, PA, United States, June 4-6, 2017, MARM-367. (Conferences, Seminars and Symposiums: Conference Presentation) 2017
Long Chain-Pterin Conjugates with Interesting Lipophilic and Sensitizer Properties. Vignoni, Mariana; Walalawela, Niluksha; Bonesi, Sergio M.; Greer, Alexander; Thomas, Andres H., 45th Middle Atlantic Regional Meeting of the American Chemical Society, Hershey, PA, United States, June 4-6, 2017, MARM-368. (Conferences, Seminars and Symposiums: Conference Presentation) 2017
Photoinduced Bacterial Inactivation by Azosulfones. Viswanathan, Radhika; Zachariah, Sayuj; Protti, Stefano; Fagnoni, Maurizio; Greer, Alexander, 254th ACS National Meeting & Exposition, Washington, DC, USA, August 20-24, 2017, ORGN-179. (Conferences, Seminars and Symposiums: Conference Presentation) 2017
Photoscience: Intriguing Uses of Lasers and Sunlight, Cameron Jahn's AP Chemistry Class (with Stas Lekhtman), Midwood High School, Brooklyn, NY, December 8. (Conferences, Seminars and Symposiums: Contributed Talk) 2017
Plenary: Type I and Type II Photosensitized Oxidations, Lipophilic Pterins, and Phase Separation of Reactive Oxygen Intermediates, Alexander Greer, 25th Encuentros Latinoamericanos de Fotoquímica y Fotobiología (ELAFOT): The Latin-American Photochemical and Photobiological Community, Villa Carlos Paz, Argentina, October 25, 2017. (Conferences, Seminars and Symposiums: Invited Talk) 2017
Pointsource Photodynamic Therapy: Fiber Optics and 3D Printed Sensitizer Tips for High Precision Eradication of Cancer Cells, Alexander Greer, 2nd Sino-German Symposium on Singlet Molecular Oxygen and Photodynamic Effects, Berlin, Germany, June 1, 2017. 中德单线态氧及其光动力效应学术研讨会 (Conferences, Seminars and Symposiums: Invited Talk) 2017
Reactive Oxygen Intermediates: Mechanistic Studies in Organic Photochemistry, Alexander Greer, Department of Chemistry, Lehigh University, Bethlehem, PA, November 21, 2017. (Conferences, Seminars and Symposiums: Invited Talk) 2017
Reactive Oxygen Intermediates: Mechanistic Studies in Organic Photochemistry, Alexander Greer, University of São Paulo, Brazil, November 1, 2017. (Conferences, Seminars and Symposiums: Invited Talk) 2017
Sarah Belh and Alexander Greer "Lecture and Lab Tour on Using Sunlight and Lasers in Science" in Ms. Mary Anne Pella-Donnelly's Science Class (with Sarah Belh via Skype), Chico Junior High School, Chico, California, November 8. (Conferences, Seminars and Symposiums: Invited Talk) 2017
Sensitized photooxidations of mono-, di-, and tri prenylated phloroglucinol derivatives, Mohapatra, Prabhu P.; Greer, Alexander, 254th ACS National Meeting & Exposition, Washington, DC, USA, August 20, 2017, ORGN-182. (Conferences, Seminars and Symposiums: Conference Presentation) 2017
Short Course: How Do Reactive Oxygen Intermediates Behave at Interfaces. Alexander Greer, University of São Paulo, Brazil, October 31, 2017. (Conferences, Seminars and Symposiums: Invited Talk) 2017
Synthesis, Photophysics and Evaluation of Mono-, Di-, Tri- and Hexa-PEG Sensitizers for Pointsource Photodynamic Therapy. Bornhuetter, Tobias; Ghogare, Ashwini; Preuss, Annegret; Greer, Alexander; Röder, Beate, 45th Middle Atlantic Regional Meeting of the American Chemical Society, Hershey, PA, United States, June 4-6, 2017, MARM-369. (Conferences, Seminars and Symposiums: Conference Presentation) 2017
Type I and Type II Photosensitized Oxidations: Basic Reactions and a Novel Lipophilic Alkyl Chain-Pterin, American Society for Photobiology, Presidential Symposium, Symposium I: "Excited states in skin and other tissue damage: Photodamage, photocarcinogenesis, and photochemoprevention" San Diego, CA, April 6, 2017
(Conferences, Seminars and Symposiums: Contributed Talk) 2017
'All-in-one' photodynamic device: Synthesis of a poly(ethylene glycol) galloyl sensitizer tip. Ghogare, Ashwini A.; Greer, Alexander. 44th Middle Atlantic Regional Meeting of the American Chemical Society, Riverdale, NY, United States, June 12, 2016, MARM-360. (Conferences, Seminars and Symposiums: Contributed Talk) 2016
'Ene' Reactions of Singlet Oxygen at the Air-Water Interface. Malek, Belaid; Fang, William; Abramova, Inna; Walalawela, Niluksha; Ghogare, Ashwini; Greer, Alexander. 44th Middle Atlantic Regional Meeting of the American Chemical Society, Riverdale, NY, United States, June 12, 2016, MARM-482. (Conferences, Seminars and Symposiums: Contributed Talk) 2016
3D Printed Sensitizer Surface for Photooxidation Chemistry: Aspects on Water Disinfection. Niluksha Walalawela, Yang Liu, Yuanyuan Zhao, Alan M. Lyons, Alexander Greer, 251st ACS National Meeting & Exposition, San Diego, CA, United States, March 16, 2016, CATL-317. (Conferences, Seminars and Symposiums: Contributed Talk) 2016
All-in-One Photodynamic Device and its Performance for In-vivo Sensitizer Release. Ghogare, A. A.; Miller, J. M.; Mondal, B.; Lyons, A. M.; Cengel, K. A.; Busch, T. M.; Greer, A. 38th Meeting of the American Society for Photobiology, Tampa, Florida, May 21-26, 2016. (Conferences, Seminars and Symposiums: Conference Presentation) 2016
An Unusual Photooxygen-Atom Exchange Reaction of Nitrosamines with Molecular Oxygen: Dependence on Nitrosamine Substituents. Ghogare, A. A.; Debaz, C.; Abramova, I.; Greer, E. M.; Oliveira, M. S.; Prado, F. M.; Di Mascio, P.; Greer, A. 38th Meeting of the American Society for Photobiology, Tampa, Florida, May 21-26, 2016. (Conferences, Seminars and Symposiums: Conference Presentation) 2016
Computed Regioselectivity in Ene Reactions of Singlet Oxygen with the Natural Product Hyperforin. Abramova, Inna; Rudshteyn, Benjamin; Liebman, Joel F.; Greer, Alexander. 41st Northeast Regional Meeting of the American Chemical Society, Binghamton, NY, United States, October 5-8, 2016, NERM-217. (Conferences, Seminars and Symposiums: Conference Presentation) 2016
Guidelines for Defining Type I and II Photosensitized Oxidation. Baptista, M. S.; Cadet, J.; Di Mascio, P.; Ghogare, A. A.; Greer, A.; Hamblin, M. R.; Lorente, C.; Ribeiro, M. S.; Thomas, A.; Vignoni, M. 38th Meeting of the American Society for Photobiology, Tampa, Florida, May 21-26, 2016. (Conferences, Seminars and Symposiums: Conference Presentation) 2016
Human Rights and Responsibility of Scientists, 115th Statistical Mechanics Conference, Rutgers University, Busch Campus, Hill Center, May 10, 2016. (Conferences, Seminars and Symposiums: Invited Talk) 2016
Interfacial Photosensitization Reactions. Walalawela, Niluksha; Greer, Alexander 41st Northeast Regional Meeting of the American Chemical Society, Binghamton, NY, United States, October 5-8, 2016, NERM-232.
(Conferences, Seminars and Symposiums: Conference Presentation) 2016
Mechanistic Organic Chemistry with Reactive Oxygen Species (ROS): Air-Water Interface Reactions. Malek, Belaid; Fang, William; Abramova, Inna; Ghogare, Ashwini A.; Greer, Alexander. 41st Northeast Regional Meeting of the American Chemical Society, Binghamton, NY, United States, October 5-8, 2016, NERM-209. (Conferences, Seminars and Symposiums: Conference Presentation) 2016
Mihaela Minnis and Alexander Greer "Lecture on Photochemistry, Photoaging and Photomedicine" in S. Mosley's physical science class, Midwood High School, April 12, 2016. (Conferences, Seminars and Symposiums: Contributed Talk) 2016
Mixed Dioxygen Relay and O-Atom Transfer Mechanisms of Nitrosamine Photoreactions. Ghogare, Ashwini A.; Debaz, Ciro J.; Silva Oliveira, Marilene; Greer, Edyta; Manso Prado, Fernanda; Di Mascio, Paolo; Greer, Alexander, 41st Northeast Regional Meeting of the American Chemical Society, Binghamton, NY, United States, October 5-8, 2016, NERM-392.
(Conferences, Seminars and Symposiums: Contributed Talk) 2016
Photoactive Silica Surface Coated with (3-Phenoxypropyl)silane: Studies of Photosensitizer Release and Singlet Oxygen Production. Ghosh, Goutam; Vignoni, Mariana; Walalawela, Niluksha; Ghogare, Ashwini A.; McFarland, Sherri A.; Thomas, Andres H.; Greer, Alexander. 41st Northeast Regional Meeting of the American Chemical Society, Binghamton, NY, United States, October 5-8, 2016, NERM-215. (Conferences, Seminars and Symposiums: Conference Presentation) 2016
Photochemical Aging and Oxidation: A Discussion for Undergraduate and High School Students. Mihaela Minnis, Alexander Greer, 251st ACS National Meeting & Exposition, San Diego, CA, United States, March 17, 2016, CHED-1979. (Conferences, Seminars and Symposiums: Contributed Talk) 2016
Photodynamic Medical Device Tips and Their Resistance to Fouling for In-vivo Sensitizer Release. Ashwini A. Ghogare, Joann M. Miller, Bikash Mondal, Alan M. Lyons, Keith A. Cengel, Theresa M. Busch, and Alexander Greer, poster at 251st ACS National Meeting & Exposition, San Diego, CA, United States, March 15, 2016, CATL-297. (Conferences, Seminars and Symposiums: Conference Presentation) 2016
Plenary Lecture: Phase Separation of Reactive Oxygen Species--Singlet Oxygen Chemistry at Interfaces, Alexander Greer, 25th Inter-American Photochemical Society Meeting, Santiago, Chile, May 25, 2016. (Conferences, Seminars and Symposiums: Invited Talk) 2016
Quadruple 'Ene' Reactions of Singlet Oxygen to the Natural Product Hyperforin: A Computed Study of Polyhydroperoxides with Decomposition to Hydrotrioxide and Carbonyls. Olson, Jeff; Abramova, Inna; Rudshteyn, Benjamin; Walalawela, Niluksha; Greer, Alexander. 252nd ACS National Meeting & Exposition, Philadelphia, PA, United States, August 21, 2016, ORGN-101. (Conferences, Seminars and Symposiums: Contributed Talk) 2016
Reactive Oxygen Species (ROS) and Their Applications to Photodynamic Therapy, Alexander Greer, Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, September 30, 2016. (Conferences, Seminars and Symposiums: Invited Talk) 2016
Reactive Oxygen Species (ROS) and Their Applications to Photodynamic Therapy, Alexander Greer, Department of Chemistry, Rice University, Houston, Texas, August 24, 2016. (Conferences, Seminars and Symposiums: Invited Talk) 2016
Reactive Oxygen Species (ROS) at Aqueous, 3-D Printed Superhydrophobic and Fluorosilica Surfaces. Alexander Greer, Department of Chemistry, University of Massachusetts, Boston, Massachusetts, November 2, 2016. (Conferences, Seminars and Symposiums: Invited Talk) 2016
Synthesis and Characterization of Long Chain Pterin Derivatives: O vs N Substitution. Vignoni, Mariana; Walalawela, Niluksha; Bonesi, Sergio M.; Greer, Alexander; Thomas, Andres H. 41st Northeast Regional Meeting of the American Chemical Society, Binghamton, NY, United States, October 5-8, 2016, NERM-233. (Conferences, Seminars and Symposiums: Conference Presentation) 2016
Synthesis and characterization of long chain pterin derivatives: O vs N substitution. Vignoni, M.; Walalawela, N.; Ghogare, A. A.; Bonesi, S. M.; Greer, A.; Thomas, A. H. 38th Meeting of the American Society for Photobiology, Tampa, Florida, May 21-26, 2016. (Conferences, Seminars and Symposiums: Conference Presentation) 2016
Synthesis of Materials for a Photodynamic Technique for Pointsource Delivery of Sensitizer Drug, Light and Singlet Oxygen. Ghogare, Ashwini; Olson, Jeff; Greer, Alexander. 252nd ACS National Meeting & Exposition, Philadelphia, PA, United States, August 22, 2016, ORGN-248. (Conferences, Seminars and Symposiums: Contributed Talk) 2016
Using Singlet Oxygen to Synthesize Natural Products and Drugs. Ashwini A. Ghogare and Alexander Greer, poster at 251st ACS National Meeting & Exposition, San Diego, CA, United States, March 17, 2016, CHED-1497. (Conferences, Seminars and Symposiums: Conference Presentation) 2016
"Commemorating the 50th Anniversary of the Foote/Wexler Discovery: From Molecules to 3D Printed Sensitizers." Christopher S. Foote Symposium at UCLA. March 12. (Conferences, Seminars and Symposiums: Invited Talk) 2015
"Compartmental Effects in Photochemistry: Aspects on Water Disinfection." National University of Andrés Bello. Santiago, Chile, May 8. (Conferences, Seminars and Symposiums: Invited Talk) 2015
"Phase Separation of Singlet Oxygen with Compartmented Sensitizers: Aspects Bordering on Photodynamic Therapy and Water Disinfection." 24th Inter-American Photochemical Society Meeting. Sarasota, Fla., Jan. 1-4. (Conferences, Seminars and Symposiums: Invited Talk) 2015
"Photodynamic Therapy: Pointsource Effects on Cancer Cell Killing." University of Chile, Santiago, Chile, May 7. (Conferences, Seminars and Symposiums: Invited Talk) 2015
"Physics of Phase Separation of Reactive Oxygen Species." Department of Physics, Queens College (CUNY). Flushing, N.Y., April 13. (Conferences, Seminars and Symposiums: Invited Talk) 2015
"Pointsource Photodynamic Therapy (PSPDT). A New Fiber Optic Method for Singlet Oxygen and Sensitizer Delivery for Precision Eradication of Cancer Cells." Sino-German Symposium on Singlet Molecular Oxygen and Photodynamic Effects. Fuzhou, China, March 23-28. (Conferences, Seminars and Symposiums: Invited Talk) 2015
"Short Course in Photochemistry and Photomedicine." National University of Andrés Bello. Santiago, Chile, May 5. (Conferences, Seminars and Symposiums: Invited Talk) 2015
Ghosh, Goutam, Mihaela Minnis, Ashwini A. Ghogare, Inna Abramova, Keith Cengel, Theresa M. Busch and Alexander Greer. "Photoactive Teflon Surfaces that Release Sensitizer Drug Molecules" poster. 24th Inter-American Photochemical Society Meeting. Sarasota, Fla., Jan. 1-4. (Conferences, Seminars and Symposiums: Conference Presentation) 2015
Interfacial Photochemistry: 3D Printed Sensitizers for Water Disinfection and Tumor Eradication, Alexander Greer, Department of Chemistry, SUNY Old Westbury, New York, October 29, 2015. (Conferences, Seminars and Symposiums: Invited Talk) 2015
Interfacial Photochemistry: Aspects on Photodynamic Therapy and Pointsource Cancer Cell Killing, Alexander Greer, National Cancer Institute, Frederick, MD, October 16, 2015. (Conferences, Seminars and Symposiums: Invited Talk) 2015
Interfacial Photochemistry: Robert Bittman Memorial Symposium, Queens College of the City University of New York, Flushing, NY, October 2, 2015. (Conferences, Seminars and Symposiums: Invited Talk) 2015
New Photooxygen-atom Exchange Reaction of Nitrosamines with Molecular Oxygen: Dependence on Nitrosamine Substituents. Ghogare, Ashwini A.; Oliveira, Marilene S.; Abramova, Inna; Greer, Edyta; Prado, Fernanda M.; Di Mascio, Paolo; Greer, Alexander 250th ACS National Meeting & Exposition, Boston, MA, United States, August 16-20, 2015. (Conferences, Seminars and Symposiums: Conference Presentation) 2015
Organic Chemistry at the Air/Water Interface: Regioselective Synthesis of Allylic Hydroperoxides via Singlet Oxygenation of a Trisubstituted Alkene. Malek, Belaid; Ghogare, Ashwini A.; Choudhury, Rajib; Greer, Alexander 250th ACS National Meeting & Exposition, Boston, MA, United States, August 16-20, 2015. (Conferences, Seminars and Symposiums: Conference Presentation) 2015
Silva Oliveira, Marilene, Ashwini A. Ghogare, Inna Abramova, Edyta M. Greer, Fernanda Manso Prado, Paolo Di Mascio and Alexander Greer. "A Preliminary Mechanistic Study of Photoinduced 18O-Atom Exchange in Nitrosamines: Dependence on Nitrosamine Substituents" poster. 24th Inter-American Photochemical Society Meeting. Sarasota, Fla., Jan. 1-4. (Conferences, Seminars and Symposiums: Conference Presentation) 2015
Singlet Oxygen Generation on Superhydrophobic Surfaces: Effect of Convection on Trapping Efficiency. Liu, Yang; Zhao, Yuanyuan; Xu, Qianfeng; Greer, Alexander; Lyons, Alan M. 250th ACS National Meeting & Exposition, Boston, MA, United States, August 16-20, 2015. (Conferences, Seminars and Symposiums: Conference Presentation) 2015
Synthesis and Antiproliferative Activity of Poly(ethylene glycol) and Ceramide Conjugated Benzopolysulfanes that Resemble Tunicate-derived Natural Products. Mahendran, Adaickapillai; Ghogare, Ashwini A.; Greer, Edyta; Gong, Yaqiong; Bittman, Robert; Arthur, Gilbert; Greer, Alexander 250th ACS National Meeting & Exposition, Boston, MA, United States, August 16-20, 2015. (Conferences, Seminars and Symposiums: Conference Presentation) 2015
Teflon Nanocomposite as a New Sensitizer Drug Photorelease Medium. Alexander Greer, 250th ACS National Meeting & Exposition, Boston, MA, United States, August 16, 2015. (Conferences, Seminars and Symposiums: Contributed Talk) 2015
"Chemical Mechanisms of Sensitized Photooxidations: Aspects Bordering on Photodynamic Therapy (PDT) and Water Disinfection." Center for Energy and Sustainability, California State University, Los Angeles. Feb. 14. (Conferences, Seminars and Symposiums: Invited Talk) 2014
"Definition of Photosensitized Oxidations: Proposed Association of a Trefoil Network." Mini-symposium on Singlet Oxygen. Sao Paulo, Sept. 13-19. (Conferences, Seminars and Symposiums: Invited Talk) 2014
"Mechanisms of Sensitized Photooxidation Reactions." Department of Chemistry, Rowan University. Glassboro, N.J., April 9. (Conferences, Seminars and Symposiums: Contributed Talk) 2014
"Mechanisms of Sensitized Photooxidation Reactions." Department of Chemistry, Syracuse University. Syracuse, N.Y., April 1. (Conferences, Seminars and Symposiums: Invited Talk) 2014
"New Mechanisms of Sensitized Photooxidations for Photodynamic Therapy." Department of Radiation Oncology, University of Pennsylvania. April 22. (Conferences, Seminars and Symposiums: Invited Talk) 2014
"Pointsource Delivery of a Photosensitizer Drug and Singlet Oxygen: Eradication of Glioma Cells in Vitro." 16th International Congress on Photobiology. Cordoba, Argentina. September 8-12. (Conferences, Seminars and Symposiums: Contributed Talk) 2014
"Pointsource Delivery of a Sensitizer and Singlet Oxygen: Towards a Photochemical Surgical Knife." Mini-symposium on Singlet Oxygen. Sao Paulo, Sept. 13-19. (Conferences, Seminars and Symposiums: Invited Talk) 2014
"Superhydrophobic Photosensitizers." Gordon Research Conference, Lasers in Medicine & Biology. Holderness, N.H., July 13-18. (Conferences, Seminars and Symposiums: Conference Presentation) 2014
"Toward New Therapeutics: Photochemistry and Drug Delivery." St. Francis College. Brooklyn, N.Y., March 13. (Conferences, Seminars and Symposiums: Invited Talk) 2014
Ghogare, Ashwini A., Imran Rizvi, Tayyaba Hasan and Alexander Greer. "Pointsource Photodynamic Therapy of Glioma Cells in vitro: Development of Polymer Probe Tips for Use as a Singlet Oxygen Scalpel to Localize the Delivery of PDT." 45th Central Regional Meeting of the American Chemical Society. Pittsburgh, Oct. 29-Nov. 1. (Conferences, Seminars and Symposiums: Conference Presentation) 2014
Ludmila Kalinin "Superhydrophobic Photosensitizers." 35th Reaction Mechanisms Conference. University of California, Davis. June 22-25. (Conferences, Seminars and Symposiums: Conference Presentation) 2014
"Mechanisms of Sensitized Photooxidation Reactions: Aspects Bordering on Photodynamic Therapy and Water Disinfection." University of Miami. Oct. 4. (Conferences, Seminars and Symposiums: Invited Talk) 2013
"New Sensitized Photorelease Systems: Autocatalytic Control of Drug Photorelease Processes." Gordon Research Conference on Photochemistry. Easton, Mass., July 15. (Conferences, Seminars and Symposiums: Invited Talk) 2013
2013 and prior: Other invited lectures from a total of over 80, including California State U. Chico, California State U. Los Angeles, California State U. San Marcos, College of Staten Island, Columbia University, Iowa State University, Long Island University, NYU Polytechnic, Queens College of CUNY, Rowan University, Stern College of Yeshiva University, Stony Brook University, St. Joseph's College, University of Delaware, University of Guelph, University of Maine, University of Missouri, Columbia, University of Nebraska, Lincoln, and University of Wisconsin, Madison. (Conferences, Seminars and Symposiums: Invited Talk) 2013
Abramova, I. and A. Greer. "Polyhydroperoxides From Tandem Singlet Oxygen Ene Reactions With the Natural Product Hyperforin. A Theoretical Study," 39th Northeast Regional Meeting of the American Chemical Society. New Haven, Conn., Oct. 23-26. (Conferences, Seminars and Symposiums: Conference Presentation) 2013
Aebisher, D., D. Bartusik, Y. Liu, Y. Zhao, A. M. Lyons and A. Greer. "Singlet Oxygen Reactivity in Water Droplets. An Examination of 1O2 Generation in the Plastron and Liquid/Solid Interface of a Superhydrophobic Surface." 39th Northeast Regional Meeting of the American Chemical Society. New Haven, Conn., Oct. 23-26. (Conferences, Seminars and Symposiums: Contributed Talk) 2013
Choudhury, R., B. Manes and A. Greer. "Bactericidal Action by Singlet Oxygen at or Near the Air-Water Interface." 39th Northeast Regional Meeting of the American Chemical Society. New Haven, Conn., Oct. 23-26. (Conferences, Seminars and Symposiums: Conference Presentation) 2013
Ghosh, G. and A. Greer. "A tris-PEGylated Chlorin as a Photosensitizer Drug for Use in a Fiber Optic-based Phototherapy Device." 39th Northeast Regional Meeting of the American Chemical Society. New Haven, Conn., Oct. 23-26. (Conferences, Seminars and Symposiums: Conference Presentation) 2013
Silva Oliveira, M., A. Ghogare, F. Manso Prado, P. Di Mascio and A. Greer. "Formation of an 18O-Labelled Nitrosamine from the Photooxidation of N-Methyl-N-Nitrosoaniline with Singlet 18O2." 39th Northeast Regional Meeting of the American Chemical Society. New Haven, Conn., Oct. 23-26. (Conferences, Seminars and Symposiums: Conference Presentation) 2013
"Photosensitized Generation of Singlet Oxygen--Towards a Photochemical Surgical Knife or Singlet Oxygen Scapel." Rutgers University. Newark, N.J., April 26. (Conferences, Seminars and Symposiums: Invited Talk) 2012
"Towards a Photochemical Surgical Knife or Singlet Oxygen Scapel." NYU Poly. Brooklyn, N.Y., March 9. (Conferences, Seminars and Symposiums: Invited Talk) 2012
Bartusik, Dorota, David Aebisher, BiBi Ghafari, Alan M. Lyons and Alexander Greer. "Generating Singlet Oxygen Bubbles: Aiming for PDT and Wound Disinfection Application." (Conferences, Seminars and Symposiums: Invited Talk) 2012
"Towards a Photochemical Surgical Knife or Singlet Oxygen Scapel." University at Albany, SUNY Albany. Nov. 1. (Conferences, Seminars and Symposiums: Invited Talk) 2011
"Encouraging Undergraduate Student Involvement in Defending the Human Rights of Scientists." American Chemical Society National Meeting & Exposition. Anaheim, Calif., March 31. (Conferences, Seminars and Symposiums: Contributed Talk) 2011
"Fiber Optic-Guided Photosensitizer Drug Delivery." American Chemical Society National Meeting & Exposition. Anaheim, Calif., March 28. (Conferences, Seminars and Symposiums: Conference Presentation) 2011
"Photosensitizer Drug Delivery via an Optical Fiber." 14th Congress of the European Society for Photobiology. Geneva, Sept. 1-6. (Conferences, Seminars and Symposiums: Contributed Talk) 2011
"The Integration of Organic Chemistry and Activism in Human Rights." Westchester Chemical Society. Dec. 7. (Conferences, Seminars and Symposiums: Invited Talk) 2011
"Fiber Optic Device for Targeted Singlet Oxygen Delivery for Potential Application in Human Diseases such as Brain Tumors" American Chemical Society National Meeting. Boston, Aug. 22-26. (Conferences, Seminars and Symposiums: Conference Presentation) 2010
"Mechanism of Photodynamic Therapy and Its Use in the Treatment of Cancer." Stern College of Yeshiva University. April. (Conferences, Seminars and Symposiums: Invited Talk) 2010
"Point Selective Delivery of Singlet Oxygen via a Fiber Optic Device: Toxic Action of Light, Dyes, and Oxygen." 35th Scientific Meeting of the American Society for Photobiology. Providence, R.I., June 13. (Conferences, Seminars and Symposiums: Contributed Talk) 2010
"Singlet Oxygen Delivery via a Fiber Optic-Bound Photosensitizer." American Chemical Society National Meeting. Boston, Aug. 22-26. (Conferences, Seminars and Symposiums: Contributed Talk) 2010
"Delivery of Singlet Molecular Oxygen in vivo via Optical Fibers." Gordon Research Conference on Physical Organic Chemistry. Holderness, N.H., July 2. (Conferences, Seminars and Symposiums: Invited Talk) 2009
Professional Leadership
41st American Society for Photobiology Biennial Meeting, Albuquerque, New Mexico, September 25-28, 2022. Co-organizers Alexander Greer, Yu-Ying He, and Shiyong Wu. (Professional Leadership: Organizational Leadership Position) 2022
Past-President, American Society for Photobiology (Professional Leadership: Organizational Leadership Position) 2022
American Society for Photobiology Symposium, Celebrating Theresa Busch's 20th Anniversary at the University of Pennsylvania, July 8, 2021. Co-organized with Shiyong Wu. (Professional Leadership: Organizational Leadership Position) 2021
President, American Society for Photobiology (Professional Leadership: Organizational Leadership Position) 2020
Co-organizer, 40th Meeting of the American Society for Photobiology, Biennial Virtual Meeting, July 28-30, 2020. (Professional Leadership: Organizational Leadership Position) 2020
American Society for Photobiology, Presidential Symposium, Mechanisms in photochemistry and photobiology: From synthetic and energy applications to materials and photomedicine, co-hosted by Andrés Thomas and Alexander Greer Chicago, IL, May 9-10, 2019. (Professional Leadership: Organizational Leadership Position) 2019
Session Organizer: PCHEM-6 Type II Photooxidation Processes. 18th Congress of the European Society for Photobiology, Barcelona, Spain, August 25-30, 2019. (Professional Leadership: Organizational Leadership Position) 2019
Co-chairs: Lisa Kelly and Alexander Greer, Organic and Inorganic Photochemistry of Functional Materials: A Panamerican Perspective, 39th Meeting of the American Society for Photobiology, Tampa, Florida, May 12-15, 2018.
(Professional Leadership: Organizational Leadership Position) 2018
Grant Review Panel, NIH ZRG1 Y82S, Infectious Disease and Microbiology, Exploration of Antimicrobial Therapeutics and Resistance, March 28-29, 2018 (Professional Leadership: Committee Service) 2018
President-elect, American Society for Photobiology (Professional Leadership: Organizational Leadership Position) 2018
Session chair, 27th Photochemistry IUPAC Meeting, Wednesday afternoon session, Dublin, Ireland July 8-13, 2018. (Professional Leadership: Organizational Leadership Position) 2018
Director, NIGMS-SCORE Research Program at Brooklyn College (2017-2020) (Professional Leadership: Organizational Leadership Position) 2017
Session Co-chair with Ying Gu, Singlet Oxygen, 2nd Sino-German Symposium on Singlet Molecular Oxygen and Photodynamic Effects, Berlin, Germany, May 29-June 2, 2017. 中德单线态氧及其光动力效应学术研讨会
(Professional Leadership: Organizational Leadership Position) 2017
Chair, Outreach Committee, American Society for Photobiology, 2012-2016. (Professional Leadership: Organizational Leadership Position) 2016
Co-chairs: Lisa Kelly and Alexander Greer, Current Trends in Photochemistry and Imaging, 38th Meeting of the American Society for Photobiology, Tampa, Florida, May 21, 2016. (Professional Leadership: Organizational Leadership Position) 2016
Co-organizer, Christopher S. Foote Symposium -- 50th Anniversary of Foote/Wexler Discovery, A Milestone for Singlet Oxygen Research. UCLA, March 12. (Professional Leadership: Organizational Leadership Position) 2015
Session chair, "Photosensitizers and Targeting Carrier Systems." Sino-German Symposium on Singlet Molecular Oxygen and Photodynamic Effects. Fuzhou, China, March 23-28. (Professional Leadership: Organizational Leadership Position) 2015
Session Chair: Gordon Research Conference on Photochemistry, Easton, MA, July 19-24, 2015 (Professional Leadership: Public Service) 2015
Session Chair: Nanomaterials, 250th American Chemical Society National Meeting, Boston, MA, August 16, 2015.
(Professional Leadership: Public Service) 2015
Session chair, "Photochemical Properties of Metal-Organic and Nanoparticle Systems and Supramolecular Containers." 37th Meeting of the American Society for Photobiology. San Diego. (Professional Leadership: Organizational Leadership Position) 2014
Grant Review Panel, R15 Cancer Therapeutics AREA NIH Grant Study Section (Professional Leadership: Committee Service) 2013
Co-chair, "Photoinduced Phenomena in Chemistry and Physics." American Society for Photobiology 2012: 36th Meeting. Montreal. (Professional Leadership: Organizational Leadership Position) 2012
Grant Review Panel, NIH Minority Biomedical Research (MBRS) Program (Professional Leadership: Committee Service) 2012
Co-chair, Committee of Concerned Scientists (http://concernedscientists.org/). (Professional Leadership: Organizational Leadership Position) 2011
Associate Editor, Photochemistry and Photobiology. Wiley-Blackwell (2009-present). (Professional Leadership: Public Service) 2009
Board of Editors, Structural Chemistry. Springer Publishers (2006-present). (Professional Leadership: Public Service) 2006
Deputy Executive Officer, Ph.D. Program in Chemistry, CUNY Graduate Center (2004-2007). (Professional Leadership: Committee Service) 2004
Other Professional Activities
Virtual Issue: Type I and II Photosensitized Oxidation in Chemistry and Biology. Eds. Ashwini Ghogare and Alexander Greer. Photochemistry and Photobiology. Online, © The American Society of Photobiology. 2012