TiO2 mesoporous thin film architecture as a tool to control Au nanoparticles growth and sensing capabilities

Autores
Steinberg, Paula Yael; Zalduendo, María Mercedes; Giménez, Gustavo Néstor; Soler Illia, Galo Juan de Avila Arturo; Angelome, Paula Cecilia
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this paper, a systematic study regarding the effect of the mesoporous structure over Au nanoparticles (NPs) growth inside and through the pores of mesoporous TiO2 thin films (MTTFs) is presented, and the effect of such characteristics over the composites' sensing capabilities is evaluated. Highly stable MTTFs with different pore diameters (range: 4-8 nm) and pore arrangements (body- and face-centered cubic) were synthesized and characterized. Au NPs were grown inside the pores, and it was demonstrated - through a careful physicochemical characterization - that the amount of incorporated Au and NP size depends on the pore array; being higher for bigger pore diameters and face-centered cubic structures. The same structure allows the growth of more and longer tips over Au NPs deposited at the thin film-substrate interface. Finally, to confirm the effect of the structural characteristics of the composites over their possible applications, the materials were tested as surface-enhanced Raman scattering (SERS)-based substrates. The composites with a higher amount of Au and more ramified NPs were the ones that presented better sensitivity in the detection of a probe molecule (4-nitrothiophenol). Overall, this work demonstrates that the pore size and ordering in MTTFs determine the materials' accessibility and connectivity, and therefore, have a clear impact on their potential applications.
Fil: Steinberg, Paula Yael. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Zalduendo, María Mercedes. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Giménez, Gustavo Néstor. Instituto Nacional de Tecnología Industrial. Centro de Micro y Nanoelectrónica del Bicentenario; Argentina
Fil: Soler Illia, Galo Juan de Avila Arturo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martin. Instituto de Nanosistemas; Argentina
Fil: Angelome, Paula Cecilia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Constituyentes | Comision Nacional de Energia Atomica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Constituyentes.; Argentina
Materia
TiO2 mesoporous thin films
metal nanoparticles
templated 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:11336/123750
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/123750
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling TiO2 mesoporous thin film architecture as a tool to control Au nanoparticles growth and sensing capabilitiesSteinberg, Paula YaelZalduendo, María MercedesGiménez, Gustavo NéstorSoler Illia, Galo Juan de Avila ArturoAngelome, Paula CeciliaTiO2 mesoporous thin filmsmetal nanoparticlestemplated growthhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1In this paper, a systematic study regarding the effect of the mesoporous structure over Au nanoparticles (NPs) growth inside and through the pores of mesoporous TiO2 thin films (MTTFs) is presented, and the effect of such characteristics over the composites' sensing capabilities is evaluated. Highly stable MTTFs with different pore diameters (range: 4-8 nm) and pore arrangements (body- and face-centered cubic) were synthesized and characterized. Au NPs were grown inside the pores, and it was demonstrated - through a careful physicochemical characterization - that the amount of incorporated Au and NP size depends on the pore array; being higher for bigger pore diameters and face-centered cubic structures. The same structure allows the growth of more and longer tips over Au NPs deposited at the thin film-substrate interface. Finally, to confirm the effect of the structural characteristics of the composites over their possible applications, the materials were tested as surface-enhanced Raman scattering (SERS)-based substrates. The composites with a higher amount of Au and more ramified NPs were the ones that presented better sensitivity in the detection of a probe molecule (4-nitrothiophenol). Overall, this work demonstrates that the pore size and ordering in MTTFs determine the materials' accessibility and connectivity, and therefore, have a clear impact on their potential applications.Fil: Steinberg, Paula Yael. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; ArgentinaFil: Zalduendo, María Mercedes. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; ArgentinaFil: Giménez, Gustavo Néstor. Instituto Nacional de Tecnología Industrial. Centro de Micro y Nanoelectrónica del Bicentenario; ArgentinaFil: Soler Illia, Galo Juan de Avila Arturo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martin. Instituto de Nanosistemas; ArgentinaFil: Angelome, Paula Cecilia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Constituyentes | Comision Nacional de Energia Atomica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Constituyentes.; ArgentinaRoyal Society of Chemistry2019-04info: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/11336/123750Steinberg, Paula Yael; Zalduendo, María Mercedes; Giménez, Gustavo Néstor; Soler Illia, Galo Juan de Avila Arturo; Angelome, Paula Cecilia; TiO2 mesoporous thin film architecture as a tool to control Au nanoparticles growth and sensing capabilities; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 21; 20; 4-2019; 10347-103561463-9076CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://xlink.rsc.org/?DOI=C9CP01896Dinfo:eu-repo/semantics/altIdentifier/doi/10.1039/C9CP01896Dinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:07:00Zoai:ri.conicet.gov.ar:11336/123750instacron: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 10:07:01.124CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv TiO2 mesoporous thin film architecture as a tool to control Au nanoparticles growth and sensing capabilities
title TiO2 mesoporous thin film architecture as a tool to control Au nanoparticles growth and sensing capabilities
spellingShingle TiO2 mesoporous thin film architecture as a tool to control Au nanoparticles growth and sensing capabilities
Steinberg, Paula Yael
TiO2 mesoporous thin films
metal nanoparticles
templated growth
title_short TiO2 mesoporous thin film architecture as a tool to control Au nanoparticles growth and sensing capabilities
title_full TiO2 mesoporous thin film architecture as a tool to control Au nanoparticles growth and sensing capabilities
title_fullStr TiO2 mesoporous thin film architecture as a tool to control Au nanoparticles growth and sensing capabilities
title_full_unstemmed TiO2 mesoporous thin film architecture as a tool to control Au nanoparticles growth and sensing capabilities
title_sort TiO2 mesoporous thin film architecture as a tool to control Au nanoparticles growth and sensing capabilities
dc.creator.none.fl_str_mv Steinberg, Paula Yael
Zalduendo, María Mercedes
Giménez, Gustavo Néstor
Soler Illia, Galo Juan de Avila Arturo
Angelome, Paula Cecilia
author Steinberg, Paula Yael
author_facet Steinberg, Paula Yael
Zalduendo, María Mercedes
Giménez, Gustavo Néstor
Soler Illia, Galo Juan de Avila Arturo
Angelome, Paula Cecilia
author_role author
author2 Zalduendo, María Mercedes
Giménez, Gustavo Néstor
Soler Illia, Galo Juan de Avila Arturo
Angelome, Paula Cecilia
author2_role author
author
author
author
dc.subject.none.fl_str_mv TiO2 mesoporous thin films
metal nanoparticles
templated growth
topic TiO2 mesoporous thin films
metal nanoparticles
templated growth
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this paper, a systematic study regarding the effect of the mesoporous structure over Au nanoparticles (NPs) growth inside and through the pores of mesoporous TiO2 thin films (MTTFs) is presented, and the effect of such characteristics over the composites' sensing capabilities is evaluated. Highly stable MTTFs with different pore diameters (range: 4-8 nm) and pore arrangements (body- and face-centered cubic) were synthesized and characterized. Au NPs were grown inside the pores, and it was demonstrated - through a careful physicochemical characterization - that the amount of incorporated Au and NP size depends on the pore array; being higher for bigger pore diameters and face-centered cubic structures. The same structure allows the growth of more and longer tips over Au NPs deposited at the thin film-substrate interface. Finally, to confirm the effect of the structural characteristics of the composites over their possible applications, the materials were tested as surface-enhanced Raman scattering (SERS)-based substrates. The composites with a higher amount of Au and more ramified NPs were the ones that presented better sensitivity in the detection of a probe molecule (4-nitrothiophenol). Overall, this work demonstrates that the pore size and ordering in MTTFs determine the materials' accessibility and connectivity, and therefore, have a clear impact on their potential applications.
Fil: Steinberg, Paula Yael. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Zalduendo, María Mercedes. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina
Fil: Giménez, Gustavo Néstor. Instituto Nacional de Tecnología Industrial. Centro de Micro y Nanoelectrónica del Bicentenario; Argentina
Fil: Soler Illia, Galo Juan de Avila Arturo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martin. Instituto de Nanosistemas; Argentina
Fil: Angelome, Paula Cecilia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Constituyentes | Comision Nacional de Energia Atomica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia. Unidad Ejecutora Instituto de Nanociencia y Nanotecnologia - Nodo Constituyentes.; Argentina
description In this paper, a systematic study regarding the effect of the mesoporous structure over Au nanoparticles (NPs) growth inside and through the pores of mesoporous TiO2 thin films (MTTFs) is presented, and the effect of such characteristics over the composites' sensing capabilities is evaluated. Highly stable MTTFs with different pore diameters (range: 4-8 nm) and pore arrangements (body- and face-centered cubic) were synthesized and characterized. Au NPs were grown inside the pores, and it was demonstrated - through a careful physicochemical characterization - that the amount of incorporated Au and NP size depends on the pore array; being higher for bigger pore diameters and face-centered cubic structures. The same structure allows the growth of more and longer tips over Au NPs deposited at the thin film-substrate interface. Finally, to confirm the effect of the structural characteristics of the composites over their possible applications, the materials were tested as surface-enhanced Raman scattering (SERS)-based substrates. The composites with a higher amount of Au and more ramified NPs were the ones that presented better sensitivity in the detection of a probe molecule (4-nitrothiophenol). Overall, this work demonstrates that the pore size and ordering in MTTFs determine the materials' accessibility and connectivity, and therefore, have a clear impact on their potential applications.
publishDate 2019
dc.date.none.fl_str_mv 2019-04
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/11336/123750
Steinberg, Paula Yael; Zalduendo, María Mercedes; Giménez, Gustavo Néstor; Soler Illia, Galo Juan de Avila Arturo; Angelome, Paula Cecilia; TiO2 mesoporous thin film architecture as a tool to control Au nanoparticles growth and sensing capabilities; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 21; 20; 4-2019; 10347-10356
1463-9076
CONICET Digital
CONICET
url http://hdl.handle.net/11336/123750
identifier_str_mv Steinberg, Paula Yael; Zalduendo, María Mercedes; Giménez, Gustavo Néstor; Soler Illia, Galo Juan de Avila Arturo; Angelome, Paula Cecilia; TiO2 mesoporous thin film architecture as a tool to control Au nanoparticles growth and sensing capabilities; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 21; 20; 4-2019; 10347-10356
1463-9076
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://xlink.rsc.org/?DOI=C9CP01896D
info:eu-repo/semantics/altIdentifier/doi/10.1039/C9CP01896D
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 13.13397

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