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, M.E., Aramendía, P.F., San Román, E.
Formato: JOUR
Acceso en línea: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 todo:paper_00092614_v204_n5-6_p415_Daraio
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spelling todo:paper_00092614_v204_n5-6_p415_Daraio2023-10-03T14:08:14Z Interaction of singlet and triplet excited states with the same quencher in micelles Daraio, M.E. Aramendía, P.F. San Román, E. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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.
format JOUR
author Daraio, M.E.
Aramendía, P.F.
San Román, E.
spellingShingle Daraio, M.E.
Aramendía, P.F.
San Román, E.
Interaction of singlet and triplet excited states with the same quencher in micelles
author_facet Daraio, M.E.
Aramendía, P.F.
San Román, E.
author_sort Daraio, M.E.
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
url http://hdl.handle.net/20.500.12110/paper_00092614_v204_n5-6_p415_Daraio
work_keys_str_mv AT daraiome interactionofsingletandtripletexcitedstateswiththesamequencherinmicelles
AT aramendiapf interactionofsingletandtripletexcitedstateswiththesamequencherinmicelles
AT sanromane interactionofsingletandtripletexcitedstateswiththesamequencherinmicelles
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