Growth and Branching of Gold nanoparticles Through MesoporousSilica Thin Films

Autores
Angelomé, Paula C.; Pastoriza Santos, Isabel; Pérez Juste, Jorge; Rodríguez-González, Benito; Zelcer, Andrés; Soler Illia, Galo Juan de Avila Arturo; Liz Marzán, Luis M.
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Composite materials made of mesoporous oxide thin films containing metallic nanoparticles are of high interest in various fields, including catalysis, biosensing and non-linear optics. We demonstrate in this work the fabrication of such composite materials containing a sub-monolayer of gold nanoparticles (GNPs) of various shapes covered with mesoporous silica thin films. Additionally, the shape of the GNPs (and thus their optical properties) can be modified in situ through seeded growth and branching. Such growth proceeds upon wetting with HAuCl 4 solution, a surfactant (cetyltrimethylammonium bromide, CTAB) and a mild reducing agent (ascorbic acid, AA). The effect of varying several reaction parameters (time and CTAB and AA concentrations) was evaluated, showing that more anisotropic particles are obtained at longer reaction times, lower CTAB concentration and higher AA concentration. The final shape of the GNPs was also found to depend on their initial shape and size, as well as the pore size of the mesoporous film covering them. Because the growth proceeds through the pores of the film, it may lead to shapes that are not easily obtained in solution, such as particles with branches on one side only. Finally, we have confirmed that no damage was induced to the mesoporous silica structure during the growth process and thus the final particles remain well covered by the thin film, which can eventually be used as a filter between the GNPs and the outer medium.
Fil: Angelomé, Paula C.. Universidad de Vigo; España
Fil: Pastoriza Santos, Isabel. Universidad de Vigo; España
Fil: Pérez Juste, Jorge. Universidad de Vigo; España
Fil: Rodríguez-González, Benito. Universidad de Vigo; España
Fil: Zelcer, Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología; Argentina
Fil: Soler Illia, Galo Juan de Avila Arturo. Universidad de Buenos Aires; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Liz Marzán, Luis M.. Universidad de Vigo; España
Materia
plasmons
Gold Nanoparticles
Mesoporous Films
Nanoparticle growth
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:11336/194781
Acceder
id CONICETDig_e8177db56bbdfd6ef50349ca4eeacef2
oai_identifier_str oai:ri.conicet.gov.ar:11336/194781
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Growth and Branching of Gold nanoparticles Through MesoporousSilica Thin FilmsAngelomé, Paula C.Pastoriza Santos, IsabelPérez Juste, JorgeRodríguez-González, BenitoZelcer, AndrésSoler Illia, Galo Juan de Avila ArturoLiz Marzán, Luis M.plasmonsGold NanoparticlesMesoporous FilmsNanoparticle growthhttps://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2Composite materials made of mesoporous oxide thin films containing metallic nanoparticles are of high interest in various fields, including catalysis, biosensing and non-linear optics. We demonstrate in this work the fabrication of such composite materials containing a sub-monolayer of gold nanoparticles (GNPs) of various shapes covered with mesoporous silica thin films. Additionally, the shape of the GNPs (and thus their optical properties) can be modified in situ through seeded growth and branching. Such growth proceeds upon wetting with HAuCl 4 solution, a surfactant (cetyltrimethylammonium bromide, CTAB) and a mild reducing agent (ascorbic acid, AA). The effect of varying several reaction parameters (time and CTAB and AA concentrations) was evaluated, showing that more anisotropic particles are obtained at longer reaction times, lower CTAB concentration and higher AA concentration. The final shape of the GNPs was also found to depend on their initial shape and size, as well as the pore size of the mesoporous film covering them. Because the growth proceeds through the pores of the film, it may lead to shapes that are not easily obtained in solution, such as particles with branches on one side only. Finally, we have confirmed that no damage was induced to the mesoporous silica structure during the growth process and thus the final particles remain well covered by the thin film, which can eventually be used as a filter between the GNPs and the outer medium.Fil: Angelomé, Paula C.. Universidad de Vigo; EspañaFil: Pastoriza Santos, Isabel. Universidad de Vigo; EspañaFil: Pérez Juste, Jorge. Universidad de Vigo; EspañaFil: Rodríguez-González, Benito. Universidad de Vigo; EspañaFil: Zelcer, Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología; ArgentinaFil: Soler Illia, Galo Juan de Avila Arturo. Universidad de Buenos Aires; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Liz Marzán, Luis M.. Universidad de Vigo; EspañaRoyal Society of Chemistry2012-03info: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/11336/194781Angelomé, Paula C.; Pastoriza Santos, Isabel; Pérez Juste, Jorge; Rodríguez-González, Benito; Zelcer, Andrés; et al.; Growth and Branching of Gold nanoparticles Through MesoporousSilica Thin Films; Royal Society of Chemistry; Nanoscale; 4; 3; 3-2012; 931-9392040-33642040-3372CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2012/NR/C2NR11547Finfo:eu-repo/semantics/altIdentifier/doi/10.1039/C2NR11547Finfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-05T10:08:53Zoai:ri.conicet.gov.ar:11336/194781instacron: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:34982025-11-05 10:08:53.392CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Growth and Branching of Gold nanoparticles Through MesoporousSilica Thin Films
title Growth and Branching of Gold nanoparticles Through MesoporousSilica Thin Films
spellingShingle Growth and Branching of Gold nanoparticles Through MesoporousSilica Thin Films
Angelomé, Paula C.
plasmons
Gold Nanoparticles
Mesoporous Films
Nanoparticle growth
title_short Growth and Branching of Gold nanoparticles Through MesoporousSilica Thin Films
title_full Growth and Branching of Gold nanoparticles Through MesoporousSilica Thin Films
title_fullStr Growth and Branching of Gold nanoparticles Through MesoporousSilica Thin Films
title_full_unstemmed Growth and Branching of Gold nanoparticles Through MesoporousSilica Thin Films
title_sort Growth and Branching of Gold nanoparticles Through MesoporousSilica Thin Films
dc.creator.none.fl_str_mv Angelomé, Paula C.
Pastoriza Santos, Isabel
Pérez Juste, Jorge
Rodríguez-González, Benito
Zelcer, Andrés
Soler Illia, Galo Juan de Avila Arturo
Liz Marzán, Luis M.
author Angelomé, Paula C.
author_facet Angelomé, Paula C.
Pastoriza Santos, Isabel
Pérez Juste, Jorge
Rodríguez-González, Benito
Zelcer, Andrés
Soler Illia, Galo Juan de Avila Arturo
Liz Marzán, Luis M.
author_role author
author2 Pastoriza Santos, Isabel
Pérez Juste, Jorge
Rodríguez-González, Benito
Zelcer, Andrés
Soler Illia, Galo Juan de Avila Arturo
Liz Marzán, Luis M.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv plasmons
Gold Nanoparticles
Mesoporous Films
Nanoparticle growth
topic plasmons
Gold Nanoparticles
Mesoporous Films
Nanoparticle growth
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Composite materials made of mesoporous oxide thin films containing metallic nanoparticles are of high interest in various fields, including catalysis, biosensing and non-linear optics. We demonstrate in this work the fabrication of such composite materials containing a sub-monolayer of gold nanoparticles (GNPs) of various shapes covered with mesoporous silica thin films. Additionally, the shape of the GNPs (and thus their optical properties) can be modified in situ through seeded growth and branching. Such growth proceeds upon wetting with HAuCl 4 solution, a surfactant (cetyltrimethylammonium bromide, CTAB) and a mild reducing agent (ascorbic acid, AA). The effect of varying several reaction parameters (time and CTAB and AA concentrations) was evaluated, showing that more anisotropic particles are obtained at longer reaction times, lower CTAB concentration and higher AA concentration. The final shape of the GNPs was also found to depend on their initial shape and size, as well as the pore size of the mesoporous film covering them. Because the growth proceeds through the pores of the film, it may lead to shapes that are not easily obtained in solution, such as particles with branches on one side only. Finally, we have confirmed that no damage was induced to the mesoporous silica structure during the growth process and thus the final particles remain well covered by the thin film, which can eventually be used as a filter between the GNPs and the outer medium.
Fil: Angelomé, Paula C.. Universidad de Vigo; España
Fil: Pastoriza Santos, Isabel. Universidad de Vigo; España
Fil: Pérez Juste, Jorge. Universidad de Vigo; España
Fil: Rodríguez-González, Benito. Universidad de Vigo; España
Fil: Zelcer, Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología; Argentina
Fil: Soler Illia, Galo Juan de Avila Arturo. Universidad de Buenos Aires; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Liz Marzán, Luis M.. Universidad de Vigo; España
description Composite materials made of mesoporous oxide thin films containing metallic nanoparticles are of high interest in various fields, including catalysis, biosensing and non-linear optics. We demonstrate in this work the fabrication of such composite materials containing a sub-monolayer of gold nanoparticles (GNPs) of various shapes covered with mesoporous silica thin films. Additionally, the shape of the GNPs (and thus their optical properties) can be modified in situ through seeded growth and branching. Such growth proceeds upon wetting with HAuCl 4 solution, a surfactant (cetyltrimethylammonium bromide, CTAB) and a mild reducing agent (ascorbic acid, AA). The effect of varying several reaction parameters (time and CTAB and AA concentrations) was evaluated, showing that more anisotropic particles are obtained at longer reaction times, lower CTAB concentration and higher AA concentration. The final shape of the GNPs was also found to depend on their initial shape and size, as well as the pore size of the mesoporous film covering them. Because the growth proceeds through the pores of the film, it may lead to shapes that are not easily obtained in solution, such as particles with branches on one side only. Finally, we have confirmed that no damage was induced to the mesoporous silica structure during the growth process and thus the final particles remain well covered by the thin film, which can eventually be used as a filter between the GNPs and the outer medium.
publishDate 2012
dc.date.none.fl_str_mv 2012-03
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/11336/194781
Angelomé, Paula C.; Pastoriza Santos, Isabel; Pérez Juste, Jorge; Rodríguez-González, Benito; Zelcer, Andrés; et al.; Growth and Branching of Gold nanoparticles Through MesoporousSilica Thin Films; Royal Society of Chemistry; Nanoscale; 4; 3; 3-2012; 931-939
2040-3364
2040-3372
CONICET Digital
CONICET
url http://hdl.handle.net/11336/194781
identifier_str_mv Angelomé, Paula C.; Pastoriza Santos, Isabel; Pérez Juste, Jorge; Rodríguez-González, Benito; Zelcer, Andrés; et al.; Growth and Branching of Gold nanoparticles Through MesoporousSilica Thin Films; Royal Society of Chemistry; Nanoscale; 4; 3; 3-2012; 931-939
2040-3364
2040-3372
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/2012/NR/C2NR11547F
info:eu-repo/semantics/altIdentifier/doi/10.1039/C2NR11547F
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
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score 13.087074

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