Fluorescence anisotropy of dyes included in crosslinked polystyrene

In this work we investigate on the local free volume of a crosslinked polystyrene by studying the steady-state fluorescence anisotropy of three probes with different sizes and shape, embedded in the polymer matrix. The very low values measured for the steady-state fluorescence anisotropy show that t...

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Detalles Bibliográficos
Autores principales: Levitus, M., Bourdelande, J.L., Marqués, G., Aramendía, P.F.
Formato: JOUR
Materias:
Anisotropy
Fluorescence
Polystyrene
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_10106030_v126_n1-3_p77_Levitus
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_10106030_v126_n1-3_p77_Levitus
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spelling todo:paper_10106030_v126_n1-3_p77_Levitus2023-10-03T15:55:59Z Fluorescence anisotropy of dyes included in crosslinked polystyrene Levitus, M. Bourdelande, J.L. Marqués, G. Aramendía, P.F. Anisotropy Fluorescence Polystyrene In this work we investigate on the local free volume of a crosslinked polystyrene by studying the steady-state fluorescence anisotropy of three probes with different sizes and shape, embedded in the polymer matrix. The very low values measured for the steady-state fluorescence anisotropy show that the molecules can perform ample movements during their excited-state lifetimes (typically few nanoseconds). Moreover, anisotropy values decrease with the size of the probe. Results were interpreted in terms of Saupe order parameters and the wobbling-in-cone model. © 1999 Elsevier Science S.A. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10106030_v126_n1-3_p77_Levitus
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Anisotropy
Fluorescence
Polystyrene
spellingShingle Anisotropy
Fluorescence
Polystyrene
Levitus, M.
Bourdelande, J.L.
Marqués, G.
Aramendía, P.F.
Fluorescence anisotropy of dyes included in crosslinked polystyrene
topic_facet Anisotropy
Fluorescence
Polystyrene
description In this work we investigate on the local free volume of a crosslinked polystyrene by studying the steady-state fluorescence anisotropy of three probes with different sizes and shape, embedded in the polymer matrix. The very low values measured for the steady-state fluorescence anisotropy show that the molecules can perform ample movements during their excited-state lifetimes (typically few nanoseconds). Moreover, anisotropy values decrease with the size of the probe. Results were interpreted in terms of Saupe order parameters and the wobbling-in-cone model. © 1999 Elsevier Science S.A.
format JOUR
author Levitus, M.
Bourdelande, J.L.
Marqués, G.
Aramendía, P.F.
author_facet Levitus, M.
Bourdelande, J.L.
Marqués, G.
Aramendía, P.F.
author_sort Levitus, M.
title Fluorescence anisotropy of dyes included in crosslinked polystyrene
title_short Fluorescence anisotropy of dyes included in crosslinked polystyrene
title_full Fluorescence anisotropy of dyes included in crosslinked polystyrene
title_fullStr Fluorescence anisotropy of dyes included in crosslinked polystyrene
title_full_unstemmed Fluorescence anisotropy of dyes included in crosslinked polystyrene
title_sort fluorescence anisotropy of dyes included in crosslinked polystyrene
url http://hdl.handle.net/20.500.12110/paper_10106030_v126_n1-3_p77_Levitus
work_keys_str_mv AT levitusm fluorescenceanisotropyofdyesincludedincrosslinkedpolystyrene
AT bourdelandejl fluorescenceanisotropyofdyesincludedincrosslinkedpolystyrene
AT marquesg fluorescenceanisotropyofdyesincludedincrosslinkedpolystyrene
AT aramendiapf fluorescenceanisotropyofdyesincludedincrosslinkedpolystyrene
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