Effect of hybrid SiO2@Ag nanoparticles with raspberry-like morphology on the excited states of the photosensitizers Rose Bengal and riboflavin
- Autores
- Martinez Porcel, Joaquin Emiliano; Rivas Aiello, Maria Belen; Arce, Valeria Beatriz; Di Silvio, Desire; Moya, Sergio Eduardo; Martire, Daniel Osvaldo
- Año de publicación
- 2019
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Metal nanoparticles (NPs) can strongly affect the photophysics of organic molecules through different mechanisms. To investigate the effect of silver nanomaterials on the triplet state dynamics of the photosensitizers riboflavin (Rf) and Rose Bengal (RB2−), we have here synthesized core–shell silica silver nanoparticles with raspberry-like morphology (SiO2@Ag NPs). For the synthesis of SiO2@Ag NPs from SiO2 nanoparticles a new combination of reported strategies was employed. The synthetic methodology involves in a first step SnCl2 as a precursor to obtain a homogeneous deposition of silver nuclei on colloidal silica spheres. In a second step, the growth of the silver nanoparticles is mediated by the photochemically generated ketyl radical of the substituted benzoin Irgacure-2959 (I-2959). Both Rf and RB2− dyes are adsorbed on the nanoparticles. Transient absorption spectroscopy experiments showed that there is a charge transfer process from the excited state of the adsorbed Rf to the silver nanoparticles. However, no similar reaction is observed for RB2−. These results are explained in terms of the expected equilibrium constants of the electron transfer for both dyes.
Fil: Martinez Porcel, Joaquin Emiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Centro de Investigacion Cooperativa En Biomateriales.; España
Fil: Rivas Aiello, Maria Belen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Arce, Valeria Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Ópticas. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones Ópticas. Universidad Nacional de La Plata. Centro de Investigaciones Ópticas; Argentina
Fil: Di Silvio, Desire. Centro de Investigacion Cooperativa En Biomateriales.; España
Fil: Moya, Sergio Eduardo. Centro de Investigacion Cooperativa En Biomateriales.; España. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Martire, Daniel Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina - Materia
-
Riboflavina
Rose Bengal
silica silver nanoaprticles - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/118715
Ver los metadatos del registro completo
id |
CONICETDig_3dc3fe1bfcaf0399cd29799533a2abcf |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/118715 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
Effect of hybrid SiO2@Ag nanoparticles with raspberry-like morphology on the excited states of the photosensitizers Rose Bengal and riboflavinMartinez Porcel, Joaquin EmilianoRivas Aiello, Maria BelenArce, Valeria BeatrizDi Silvio, DesireMoya, Sergio EduardoMartire, Daniel OsvaldoRiboflavinaRose Bengalsilica silver nanoaprticleshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Metal nanoparticles (NPs) can strongly affect the photophysics of organic molecules through different mechanisms. To investigate the effect of silver nanomaterials on the triplet state dynamics of the photosensitizers riboflavin (Rf) and Rose Bengal (RB2−), we have here synthesized core–shell silica silver nanoparticles with raspberry-like morphology (SiO2@Ag NPs). For the synthesis of SiO2@Ag NPs from SiO2 nanoparticles a new combination of reported strategies was employed. The synthetic methodology involves in a first step SnCl2 as a precursor to obtain a homogeneous deposition of silver nuclei on colloidal silica spheres. In a second step, the growth of the silver nanoparticles is mediated by the photochemically generated ketyl radical of the substituted benzoin Irgacure-2959 (I-2959). Both Rf and RB2− dyes are adsorbed on the nanoparticles. Transient absorption spectroscopy experiments showed that there is a charge transfer process from the excited state of the adsorbed Rf to the silver nanoparticles. However, no similar reaction is observed for RB2−. These results are explained in terms of the expected equilibrium constants of the electron transfer for both dyes.Fil: Martinez Porcel, Joaquin Emiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Centro de Investigacion Cooperativa En Biomateriales.; EspañaFil: Rivas Aiello, Maria Belen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Arce, Valeria Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Ópticas. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones Ópticas. Universidad Nacional de La Plata. Centro de Investigaciones Ópticas; ArgentinaFil: Di Silvio, Desire. Centro de Investigacion Cooperativa En Biomateriales.; EspañaFil: Moya, Sergio Eduardo. Centro de Investigacion Cooperativa En Biomateriales.; España. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Martire, Daniel Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaRoyal Society of Chemistry2019-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/118715Martinez Porcel, Joaquin Emiliano; Rivas Aiello, Maria Belen; Arce, Valeria Beatriz; Di Silvio, Desire; Moya, Sergio Eduardo; et al.; Effect of hybrid SiO2@Ag nanoparticles with raspberry-like morphology on the excited states of the photosensitizers Rose Bengal and riboflavin; Royal Society of Chemistry; New Journal of Chemistry; 43; 23; 7-2019; 9123-91331144-0546CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2019/nj/c9nj01013kinfo:eu-repo/semantics/altIdentifier/doi/10.1039/C9NJ01013Kinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:49:55Zoai:ri.conicet.gov.ar:11336/118715instacron: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:34982025-09-03 09:49:55.295CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Effect of hybrid SiO2@Ag nanoparticles with raspberry-like morphology on the excited states of the photosensitizers Rose Bengal and riboflavin |
title |
Effect of hybrid SiO2@Ag nanoparticles with raspberry-like morphology on the excited states of the photosensitizers Rose Bengal and riboflavin |
spellingShingle |
Effect of hybrid SiO2@Ag nanoparticles with raspberry-like morphology on the excited states of the photosensitizers Rose Bengal and riboflavin Martinez Porcel, Joaquin Emiliano Riboflavina Rose Bengal silica silver nanoaprticles |
title_short |
Effect of hybrid SiO2@Ag nanoparticles with raspberry-like morphology on the excited states of the photosensitizers Rose Bengal and riboflavin |
title_full |
Effect of hybrid SiO2@Ag nanoparticles with raspberry-like morphology on the excited states of the photosensitizers Rose Bengal and riboflavin |
title_fullStr |
Effect of hybrid SiO2@Ag nanoparticles with raspberry-like morphology on the excited states of the photosensitizers Rose Bengal and riboflavin |
title_full_unstemmed |
Effect of hybrid SiO2@Ag nanoparticles with raspberry-like morphology on the excited states of the photosensitizers Rose Bengal and riboflavin |
title_sort |
Effect of hybrid SiO2@Ag nanoparticles with raspberry-like morphology on the excited states of the photosensitizers Rose Bengal and riboflavin |
dc.creator.none.fl_str_mv |
Martinez Porcel, Joaquin Emiliano Rivas Aiello, Maria Belen Arce, Valeria Beatriz Di Silvio, Desire Moya, Sergio Eduardo Martire, Daniel Osvaldo |
author |
Martinez Porcel, Joaquin Emiliano |
author_facet |
Martinez Porcel, Joaquin Emiliano Rivas Aiello, Maria Belen Arce, Valeria Beatriz Di Silvio, Desire Moya, Sergio Eduardo Martire, Daniel Osvaldo |
author_role |
author |
author2 |
Rivas Aiello, Maria Belen Arce, Valeria Beatriz Di Silvio, Desire Moya, Sergio Eduardo Martire, Daniel Osvaldo |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Riboflavina Rose Bengal silica silver nanoaprticles |
topic |
Riboflavina Rose Bengal silica silver nanoaprticles |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Metal nanoparticles (NPs) can strongly affect the photophysics of organic molecules through different mechanisms. To investigate the effect of silver nanomaterials on the triplet state dynamics of the photosensitizers riboflavin (Rf) and Rose Bengal (RB2−), we have here synthesized core–shell silica silver nanoparticles with raspberry-like morphology (SiO2@Ag NPs). For the synthesis of SiO2@Ag NPs from SiO2 nanoparticles a new combination of reported strategies was employed. The synthetic methodology involves in a first step SnCl2 as a precursor to obtain a homogeneous deposition of silver nuclei on colloidal silica spheres. In a second step, the growth of the silver nanoparticles is mediated by the photochemically generated ketyl radical of the substituted benzoin Irgacure-2959 (I-2959). Both Rf and RB2− dyes are adsorbed on the nanoparticles. Transient absorption spectroscopy experiments showed that there is a charge transfer process from the excited state of the adsorbed Rf to the silver nanoparticles. However, no similar reaction is observed for RB2−. These results are explained in terms of the expected equilibrium constants of the electron transfer for both dyes. Fil: Martinez Porcel, Joaquin Emiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Centro de Investigacion Cooperativa En Biomateriales.; España Fil: Rivas Aiello, Maria Belen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina Fil: Arce, Valeria Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Ópticas. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones Ópticas. Universidad Nacional de La Plata. Centro de Investigaciones Ópticas; Argentina Fil: Di Silvio, Desire. Centro de Investigacion Cooperativa En Biomateriales.; España Fil: Moya, Sergio Eduardo. Centro de Investigacion Cooperativa En Biomateriales.; España. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Martire, Daniel Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina |
description |
Metal nanoparticles (NPs) can strongly affect the photophysics of organic molecules through different mechanisms. To investigate the effect of silver nanomaterials on the triplet state dynamics of the photosensitizers riboflavin (Rf) and Rose Bengal (RB2−), we have here synthesized core–shell silica silver nanoparticles with raspberry-like morphology (SiO2@Ag NPs). For the synthesis of SiO2@Ag NPs from SiO2 nanoparticles a new combination of reported strategies was employed. The synthetic methodology involves in a first step SnCl2 as a precursor to obtain a homogeneous deposition of silver nuclei on colloidal silica spheres. In a second step, the growth of the silver nanoparticles is mediated by the photochemically generated ketyl radical of the substituted benzoin Irgacure-2959 (I-2959). Both Rf and RB2− dyes are adsorbed on the nanoparticles. Transient absorption spectroscopy experiments showed that there is a charge transfer process from the excited state of the adsorbed Rf to the silver nanoparticles. However, no similar reaction is observed for RB2−. These results are explained in terms of the expected equilibrium constants of the electron transfer for both dyes. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-07 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/118715 Martinez Porcel, Joaquin Emiliano; Rivas Aiello, Maria Belen; Arce, Valeria Beatriz; Di Silvio, Desire; Moya, Sergio Eduardo; et al.; Effect of hybrid SiO2@Ag nanoparticles with raspberry-like morphology on the excited states of the photosensitizers Rose Bengal and riboflavin; Royal Society of Chemistry; New Journal of Chemistry; 43; 23; 7-2019; 9123-9133 1144-0546 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/118715 |
identifier_str_mv |
Martinez Porcel, Joaquin Emiliano; Rivas Aiello, Maria Belen; Arce, Valeria Beatriz; Di Silvio, Desire; Moya, Sergio Eduardo; et al.; Effect of hybrid SiO2@Ag nanoparticles with raspberry-like morphology on the excited states of the photosensitizers Rose Bengal and riboflavin; Royal Society of Chemistry; New Journal of Chemistry; 43; 23; 7-2019; 9123-9133 1144-0546 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2019/nj/c9nj01013k info:eu-repo/semantics/altIdentifier/doi/10.1039/C9NJ01013K |
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 application/pdf |
dc.publisher.none.fl_str_mv |
Royal Society of Chemistry |
publisher.none.fl_str_mv |
Royal Society of Chemistry |
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 |
_version_ |
1842269001386819584 |
score |
13.13397 |