Riboflavin-induced photodegradation of tryptophan in sodium sulfosuccinate (AOT)-iso-octane-water

Autores
Pérez, Hugo Alejandro; Moran Vieyra, Faustino Eduardo; Valle, Lorena; Borsarelli, Claudio Darío
Año de publicación
2011
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Flavins play an important role in photosensitized reactions that include a wide range ofelectron donor substrates, such as amino acids. In aqueous solutions, triplet state offlavins reacts with amino acids such as Cys, Trp and Tyr with bimolecular quenchingconstants between 1-10109 M-1 s-1 [1]. In aerobic conditions, the flavin photosensitizedoxidation of aminoacids was attributed to H2O2 produced by dismutation of O2•-, generated by the interaction of O2 with the triplet of the flavins and/or radical speciesformed by flavin triplet reaction with the aminoacids [2,3].However, to our knowledge, there are few studies about flavin-photosensitizedoxidation of amino acid in microenvironments which mimic biological systemcompartmentalization. In this work we study the riboflavin (Rf)-mediated reaction oftryptophan in nanodroplets made of sodium sulfosuccinate (AOT)-iso-octane-water bycontinuous blue-LED (460 nm) and laser pulsed (355 nm) photolysis, using bothstationary and dynamic absorption and emission spectroscopies.
Fil: Pérez, Hugo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
Fil: Moran Vieyra, Faustino Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
Fil: Valle, Lorena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
Fil: Borsarelli, Claudio Darío. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
21st Conference of the Inter-American Photochemical Society
Mendoza
Argentina
Inter-American Photochemical Society
Materia
Riboflavin
Sensitizer
AOT
Tryptophan
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/264035
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Riboflavin-induced photodegradation of tryptophan in sodium sulfosuccinate (AOT)-iso-octane-waterPérez, Hugo AlejandroMoran Vieyra, Faustino EduardoValle, LorenaBorsarelli, Claudio DaríoRiboflavinSensitizerAOTTryptophanhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Flavins play an important role in photosensitized reactions that include a wide range ofelectron donor substrates, such as amino acids. In aqueous solutions, triplet state offlavins reacts with amino acids such as Cys, Trp and Tyr with bimolecular quenchingconstants between 1-10109 M-1 s-1 [1]. In aerobic conditions, the flavin photosensitizedoxidation of aminoacids was attributed to H2O2 produced by dismutation of O2•-, generated by the interaction of O2 with the triplet of the flavins and/or radical speciesformed by flavin triplet reaction with the aminoacids [2,3].However, to our knowledge, there are few studies about flavin-photosensitizedoxidation of amino acid in microenvironments which mimic biological systemcompartmentalization. In this work we study the riboflavin (Rf)-mediated reaction oftryptophan in nanodroplets made of sodium sulfosuccinate (AOT)-iso-octane-water bycontinuous blue-LED (460 nm) and laser pulsed (355 nm) photolysis, using bothstationary and dynamic absorption and emission spectroscopies.Fil: Pérez, Hugo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; ArgentinaFil: Moran Vieyra, Faustino Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; ArgentinaFil: Valle, Lorena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; ArgentinaFil: Borsarelli, Claudio Darío. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina21st Conference of the Inter-American Photochemical SocietyMendozaArgentinaInter-American Photochemical SocietyInter-American Photochemical Society2011info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectConferenciaBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/264035Riboflavin-induced photodegradation of tryptophan in sodium sulfosuccinate (AOT)-iso-octane-water; 21st Conference of the Inter-American Photochemical Society ; Mendoza; Argentina; 2011; 120-120CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://mail.inifta.unlp.edu.ar/iaps21/abstracts.htmlInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:32:45Zoai:ri.conicet.gov.ar:11336/264035instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:32:46.217CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Riboflavin-induced photodegradation of tryptophan in sodium sulfosuccinate (AOT)-iso-octane-water
title Riboflavin-induced photodegradation of tryptophan in sodium sulfosuccinate (AOT)-iso-octane-water
spellingShingle Riboflavin-induced photodegradation of tryptophan in sodium sulfosuccinate (AOT)-iso-octane-water
Pérez, Hugo Alejandro
Riboflavin
Sensitizer
AOT
Tryptophan
title_short Riboflavin-induced photodegradation of tryptophan in sodium sulfosuccinate (AOT)-iso-octane-water
title_full Riboflavin-induced photodegradation of tryptophan in sodium sulfosuccinate (AOT)-iso-octane-water
title_fullStr Riboflavin-induced photodegradation of tryptophan in sodium sulfosuccinate (AOT)-iso-octane-water
title_full_unstemmed Riboflavin-induced photodegradation of tryptophan in sodium sulfosuccinate (AOT)-iso-octane-water
title_sort Riboflavin-induced photodegradation of tryptophan in sodium sulfosuccinate (AOT)-iso-octane-water
dc.creator.none.fl_str_mv Pérez, Hugo Alejandro
Moran Vieyra, Faustino Eduardo
Valle, Lorena
Borsarelli, Claudio Darío
author Pérez, Hugo Alejandro
author_facet Pérez, Hugo Alejandro
Moran Vieyra, Faustino Eduardo
Valle, Lorena
Borsarelli, Claudio Darío
author_role author
author2 Moran Vieyra, Faustino Eduardo
Valle, Lorena
Borsarelli, Claudio Darío
author2_role author
author
author
dc.subject.none.fl_str_mv Riboflavin
Sensitizer
AOT
Tryptophan
topic Riboflavin
Sensitizer
AOT
Tryptophan
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Flavins play an important role in photosensitized reactions that include a wide range ofelectron donor substrates, such as amino acids. In aqueous solutions, triplet state offlavins reacts with amino acids such as Cys, Trp and Tyr with bimolecular quenchingconstants between 1-10109 M-1 s-1 [1]. In aerobic conditions, the flavin photosensitizedoxidation of aminoacids was attributed to H2O2 produced by dismutation of O2•-, generated by the interaction of O2 with the triplet of the flavins and/or radical speciesformed by flavin triplet reaction with the aminoacids [2,3].However, to our knowledge, there are few studies about flavin-photosensitizedoxidation of amino acid in microenvironments which mimic biological systemcompartmentalization. In this work we study the riboflavin (Rf)-mediated reaction oftryptophan in nanodroplets made of sodium sulfosuccinate (AOT)-iso-octane-water bycontinuous blue-LED (460 nm) and laser pulsed (355 nm) photolysis, using bothstationary and dynamic absorption and emission spectroscopies.
Fil: Pérez, Hugo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
Fil: Moran Vieyra, Faustino Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
Fil: Valle, Lorena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
Fil: Borsarelli, Claudio Darío. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
21st Conference of the Inter-American Photochemical Society
Mendoza
Argentina
Inter-American Photochemical Society
description Flavins play an important role in photosensitized reactions that include a wide range ofelectron donor substrates, such as amino acids. In aqueous solutions, triplet state offlavins reacts with amino acids such as Cys, Trp and Tyr with bimolecular quenchingconstants between 1-10109 M-1 s-1 [1]. In aerobic conditions, the flavin photosensitizedoxidation of aminoacids was attributed to H2O2 produced by dismutation of O2•-, generated by the interaction of O2 with the triplet of the flavins and/or radical speciesformed by flavin triplet reaction with the aminoacids [2,3].However, to our knowledge, there are few studies about flavin-photosensitizedoxidation of amino acid in microenvironments which mimic biological systemcompartmentalization. In this work we study the riboflavin (Rf)-mediated reaction oftryptophan in nanodroplets made of sodium sulfosuccinate (AOT)-iso-octane-water bycontinuous blue-LED (460 nm) and laser pulsed (355 nm) photolysis, using bothstationary and dynamic absorption and emission spectroscopies.
publishDate 2011
dc.date.none.fl_str_mv 2011
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Conferencia
Book
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/264035
Riboflavin-induced photodegradation of tryptophan in sodium sulfosuccinate (AOT)-iso-octane-water; 21st Conference of the Inter-American Photochemical Society ; Mendoza; Argentina; 2011; 120-120
CONICET Digital
CONICET
url http://hdl.handle.net/11336/264035
identifier_str_mv Riboflavin-induced photodegradation of tryptophan in sodium sulfosuccinate (AOT)-iso-octane-water; 21st Conference of the Inter-American Photochemical Society ; Mendoza; Argentina; 2011; 120-120
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://mail.inifta.unlp.edu.ar/iaps21/abstracts.html
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv Inter-American Photochemical Society
publisher.none.fl_str_mv Inter-American Photochemical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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