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1
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Savenko ES, Kostjukov VV. Coumarin 314 excitation in aqueous media: Contributions of vibronic coupling and hydration. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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2
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Akari AS, Hodgson GK, Golian KP, Impellizzeri S. Photochemical Insights on Intramolecular Dye‐Sensitized Free‐Radical Processes with a Quinoline Antenna. ChemistrySelect 2021. [DOI: 10.1002/slct.202100027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Aviya S. Akari
- Laboratory for Nanomaterials and Molecular Plasmonics Department of Chemistry and Biology Ryerson University 350 Victoria St. Toronto ON M5B 2K3 Canada
| | - Gregory K. Hodgson
- Laboratory for Nanomaterials and Molecular Plasmonics Department of Chemistry and Biology Ryerson University 350 Victoria St. Toronto ON M5B 2K3 Canada
| | - Karol P. Golian
- Laboratory for Nanomaterials and Molecular Plasmonics Department of Chemistry and Biology Ryerson University 350 Victoria St. Toronto ON M5B 2K3 Canada
| | - Stefania Impellizzeri
- Laboratory for Nanomaterials and Molecular Plasmonics Department of Chemistry and Biology Ryerson University 350 Victoria St. Toronto ON M5B 2K3 Canada
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3
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Golian KP, Akari AS, Hodgson GK, Impellizzeri S. Fluorescence activation, patterning and enhancement with photogenerated radicals, a prefluorescent probe and silver nanostructures. RSC Adv 2021. [DOI: 10.1039/d0ra09565f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
We designed a switchable fluorophore activated by UVA light and a radical initiator, for optical lithography with concomitant metal-enhanced fluorescence by silver nanoparticles.
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Affiliation(s)
- Karol P. Golian
- Laboratory for Nanomaterials and Molecular Plasmonics
- Department of Chemistry and Biology
- Ryerson University
- Toronto
- Canada
| | - Aviya S. Akari
- Laboratory for Nanomaterials and Molecular Plasmonics
- Department of Chemistry and Biology
- Ryerson University
- Toronto
- Canada
| | - Gregory K. Hodgson
- Laboratory for Nanomaterials and Molecular Plasmonics
- Department of Chemistry and Biology
- Ryerson University
- Toronto
- Canada
| | - Stefania Impellizzeri
- Laboratory for Nanomaterials and Molecular Plasmonics
- Department of Chemistry and Biology
- Ryerson University
- Toronto
- Canada
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4
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Liras M, Simoncelli S, Rivas-Aravena A, García O, Scaiano JC, Alarcon EI, Aspée A. Nitroxide amide-BODIPY probe behavior in fibroblasts analyzed by advanced fluorescence microscopy. Org Biomol Chem 2018; 14:4023-6. [PMID: 27065020 DOI: 10.1039/c6ob00533k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A novel synthesized nitroxide amide-BODIPY prefluorescent probe was used to study cellular redox balance that modulates nitroxide/hydroxylamine ratio in cultured human fibroblasts. FLIM quantitatively differentiated between nitroxide states of the cytoplasm-localized probe imaged by TIRF, monitoring nitroxide depletion by hydrogen peroxide; eluding incorrect interpretation if only fluorescence intensity is considered.
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Affiliation(s)
- M Liras
- Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas (ICTP-CSIC), Juan de la Cierva 3, 28006, Madrid, España and Department of Chemistry and Biomolecular Sciences and Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N6N5, Canada
| | - S Simoncelli
- Department of Chemistry and Biomolecular Sciences and Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N6N5, Canada and INQUIMAE and Departamento de Química Inorgánica, Analítica, y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
| | - A Rivas-Aravena
- Laboratorio de Radiobiología Molecular y Celular, Departamento de Aplicaciones Nucleares, Comisión Chilena de Energía Nuclear, Santiago, Chile
| | - O García
- Instituto de Ciencia y Tecnología de Polímeros, Consejo Superior de Investigaciones Científicas (ICTP-CSIC), Juan de la Cierva 3, 28006, Madrid, España
| | - J C Scaiano
- Department of Chemistry and Biomolecular Sciences and Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N6N5, Canada
| | - E I Alarcon
- Department of Chemistry and Biomolecular Sciences and Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N6N5, Canada and Bio-nanomaterials Chemistry and Engineering Laboratory, Division of Cardiac Surgery, University of Ottawa Heart Institute, 40 Ruskin St., Ottawa, Ontario K1Y 4W7, Canada.
| | - A Aspée
- Facultad de Química y Biología, Universidad de Santiago de Chile, Casilla 40 Correo 33, Santiago, Chile.
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5
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Zúñiga-Núñez D, Zamora RA, Barrias P, Tirapegui C, Poblete H, Cárdenas-Jirón G, Alarcon EI, Aspée A. Theoretical rationalisation of the photophysics of a TICT excited state of cinnamoyl–coumarin derivatives in homogeneous and biological membrane models. Phys Chem Chem Phys 2018; 20:27621-27629. [DOI: 10.1039/c8cp04963g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Analysis of the potential energy barriers and structural dynamics of a new TICT-probe for monitoring biological environments.
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Affiliation(s)
| | - Ricardo A. Zamora
- Facultad de Química y Biología
- Universidad de Santiago de Chile
- Santiago
- Chile
| | - Pablo Barrias
- Facultad de Química y Biología
- Universidad de Santiago de Chile
- Santiago
- Chile
| | - Cristian Tirapegui
- Facultad de Química y Biología
- Universidad de Santiago de Chile
- Santiago
- Chile
| | - Horacio Poblete
- Center for Bioinformatics and Molecular Simulation
- Universidad de Talca
- Talca
- Chile
- Núcleo Científico Multidisciplinario
| | | | - Emilio I. Alarcon
- Bio-nanomaterials Chemistry and Engineering Laboratory
- Division of Cardiac Surgery
- University of Ottawa Heart Institute
- Ottawa
- Canada
| | - Alexis Aspée
- Facultad de Química y Biología
- Universidad de Santiago de Chile
- Santiago
- Chile
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6
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Coman AG, Paraschivescu CC, Paun A, Diac A, Hădade ND, Jouffret L, Gautier A, Matache M, Ionita P. Synthesis of novel profluorescent nitroxides as dual luminescent-paramagnetic active probes. NEW J CHEM 2017. [DOI: 10.1039/c7nj01698k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Profluorescent nitroxides containing 2,5-diaryl-1,3,4-oxadiazoles as fluorophore units were synthesized and characterized as actively responsive probes to reducing agents.
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Affiliation(s)
- Anca G. Coman
- University of Bucharest, Faculty of Chemistry
- Department of Organic Chemistry, Biochemistry and Catalysis
- Research Centre of Applied Organic Chemistry
- RO-050663 Bucharest
- Romania
| | - Codruta C. Paraschivescu
- University of Bucharest, Faculty of Chemistry
- Department of Organic Chemistry, Biochemistry and Catalysis
- Research Centre of Applied Organic Chemistry
- RO-050663 Bucharest
- Romania
| | - Anca Paun
- University of Bucharest, Faculty of Chemistry
- Department of Organic Chemistry, Biochemistry and Catalysis
- Research Centre of Applied Organic Chemistry
- RO-050663 Bucharest
- Romania
| | - Andreea Diac
- Faculty of Chemistry and Chemical Engineering
- Supramolecular Organic and Organometallic Chemistry Centre, ‘‘Babes–Bolyai’’ University
- RO-400028-Cluj-Napoca
- Romania
| | - Niculina D. Hădade
- Faculty of Chemistry and Chemical Engineering
- Supramolecular Organic and Organometallic Chemistry Centre, ‘‘Babes–Bolyai’’ University
- RO-400028-Cluj-Napoca
- Romania
| | - Laurent Jouffret
- Université Clermont Auvergne
- CNRS
- Sigma Clermont
- ICCF
- F-63000 Clermont-Ferrand
| | - Arnaud Gautier
- Université Clermont Auvergne
- CNRS
- Sigma Clermont
- ICCF
- F-63000 Clermont-Ferrand
| | - Mihaela Matache
- University of Bucharest, Faculty of Chemistry
- Department of Organic Chemistry, Biochemistry and Catalysis
- Research Centre of Applied Organic Chemistry
- RO-050663 Bucharest
- Romania
| | - Petre Ionita
- University of Bucharest, Faculty of Chemistry
- Department of Organic Chemistry, Biochemistry and Catalysis
- Research Centre of Applied Organic Chemistry
- RO-050663 Bucharest
- Romania
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7
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Aspée A, Alarcon E, Pino E, Gorelsky SI, Scaiano JC. Coumarin 314 Free Radical Cation: Formation, Properties, and Reactivity toward Phenolic Antioxidants. J Phys Chem A 2011; 116:199-206. [DOI: 10.1021/jp207100q] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alexis Aspée
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Bernardo O'Higgins 3363, Casilla 40 Correo 33, Santiago, Chile
| | - Emilio Alarcon
- Department of Chemistry and Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N6N5, Canada
| | - Eduardo Pino
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Av. Bernardo O'Higgins 3363, Casilla 40 Correo 33, Santiago, Chile
| | - Serge I. Gorelsky
- Department of Chemistry and Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N6N5, Canada
| | - Juan C. Scaiano
- Department of Chemistry and Centre for Catalysis Research and Innovation, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N6N5, Canada
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8
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Morris JC, McMurtrie JC, Bottle SE, Fairfull-Smith KE. Generation of Profluorescent Isoindoline Nitroxides Using Click Chemistry. J Org Chem 2011; 76:4964-72. [DOI: 10.1021/jo200613r] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jason C. Morris
- ARC Centre of Excellence for Free Radical Chemistry and Biotechnology and ‡Chemistry Discipline, Faculty of Science and Technology, Queensland University of Technology, Queensland 4001, Australia
| | - John C. McMurtrie
- ARC Centre of Excellence for Free Radical Chemistry and Biotechnology and ‡Chemistry Discipline, Faculty of Science and Technology, Queensland University of Technology, Queensland 4001, Australia
| | - Steven E. Bottle
- ARC Centre of Excellence for Free Radical Chemistry and Biotechnology and ‡Chemistry Discipline, Faculty of Science and Technology, Queensland University of Technology, Queensland 4001, Australia
| | - Kathryn E. Fairfull-Smith
- ARC Centre of Excellence for Free Radical Chemistry and Biotechnology and ‡Chemistry Discipline, Faculty of Science and Technology, Queensland University of Technology, Queensland 4001, Australia
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9
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Blinco JP, Fairfull-Smith KE, Morrow BJ, Bottle SE. Profluorescent Nitroxides as Sensitive Probes of Oxidative Change and Free Radical Reactions. Aust J Chem 2011. [DOI: 10.1071/ch10442] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This paper presents a review on the use of tethered nitroxide–fluorophore molecules as probes of oxidative change and free radical generation and reaction. The proximity of the nitroxide free radical to the fluorophore suppresses the normal fluorescence emission process. Nitroxide free radical scavenging, metabolism or redox chemistry return the system to its natural fluorescent state and so these tethered nitroxide–fluorophore molecules are described as being profluorescent. A survey of profluorescent nitroxides found in the literature is provided as well as background on the mechanism of action and applications of these compounds as fluorometric probes within the fields of biological, materials and environmental sciences.
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10
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Aspée A, Orrego A, Alarcón E, López-Alarcón C, Poblete H, González-Nilo D. Antioxidant reactivity toward nitroxide probes anchored into human serum albumin. A new model for studying antioxidant repairing capacity of protein radicals. Bioorg Med Chem Lett 2009; 19:6382-5. [DOI: 10.1016/j.bmcl.2009.09.070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2009] [Revised: 09/15/2009] [Accepted: 09/17/2009] [Indexed: 11/24/2022]
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