Interaction of singlet and triplet excited states with the same quencher in micelles

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Time-resolved and steady state equations for successive singlet and triplet quenching by the same quencher in micelles are developed. The model assumes that: (i) the quencher can distribute between micellar and aqueous phases, (ii) the probe is completely micellized, and (iii) the distribution kinet...

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Autores principales: Daraio, Marta Edit, Aramendía, Pedro Francisco, San Roman, Enrique Arnoldo
Publicado: 1993
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00092614_v204_n5-6_p415_Daraio
http://hdl.handle.net/20.500.12110/paper_00092614_v204_n5-6_p415_Daraio
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00092614_v204_n5-6_p415_Daraio
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spelling paper:paper_00092614_v204_n5-6_p415_Daraio2023-06-08T14:33:41Z Interaction of singlet and triplet excited states with the same quencher in micelles Daraio, Marta Edit Aramendía, Pedro Francisco San Roman, Enrique Arnoldo Time-resolved and steady state equations for successive singlet and triplet quenching by the same quencher in micelles are developed. The model assumes that: (i) the quencher can distribute between micellar and aqueous phases, (ii) the probe is completely micellized, and (iii) the distribution kinetics competes only with triplet events. The four parameters of the model: singlet quenching, triplet quenching, the quencher exit rate constant and quencher distribution equilibrium constant can be obtained from fluorescence and triplet quenching experiments. Limiting cases are analyzed and the applied to zinc phthalocyanine quenching by methyl benzoquinone in CTAC. © 1993. Fil:Daraio, M.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Aramendía, P.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:San Román, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1993 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00092614_v204_n5-6_p415_Daraio http://hdl.handle.net/20.500.12110/paper_00092614_v204_n5-6_p415_Daraio
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description Time-resolved and steady state equations for successive singlet and triplet quenching by the same quencher in micelles are developed. The model assumes that: (i) the quencher can distribute between micellar and aqueous phases, (ii) the probe is completely micellized, and (iii) the distribution kinetics competes only with triplet events. The four parameters of the model: singlet quenching, triplet quenching, the quencher exit rate constant and quencher distribution equilibrium constant can be obtained from fluorescence and triplet quenching experiments. Limiting cases are analyzed and the applied to zinc phthalocyanine quenching by methyl benzoquinone in CTAC. © 1993.
author Daraio, Marta Edit
Aramendía, Pedro Francisco
San Roman, Enrique Arnoldo
spellingShingle Daraio, Marta Edit
Aramendía, Pedro Francisco
San Roman, Enrique Arnoldo
Interaction of singlet and triplet excited states with the same quencher in micelles
author_facet Daraio, Marta Edit
Aramendía, Pedro Francisco
San Roman, Enrique Arnoldo
author_sort Daraio, Marta Edit
title Interaction of singlet and triplet excited states with the same quencher in micelles
title_short Interaction of singlet and triplet excited states with the same quencher in micelles
title_full Interaction of singlet and triplet excited states with the same quencher in micelles
title_fullStr Interaction of singlet and triplet excited states with the same quencher in micelles
title_full_unstemmed Interaction of singlet and triplet excited states with the same quencher in micelles
title_sort interaction of singlet and triplet excited states with the same quencher in micelles
publishDate 1993
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00092614_v204_n5-6_p415_Daraio
http://hdl.handle.net/20.500.12110/paper_00092614_v204_n5-6_p415_Daraio
work_keys_str_mv AT daraiomartaedit interactionofsingletandtripletexcitedstateswiththesamequencherinmicelles
AT aramendiapedrofrancisco interactionofsingletandtripletexcitedstateswiththesamequencherinmicelles
AT sanromanenriquearnoldo interactionofsingletandtripletexcitedstateswiththesamequencherinmicelles
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