Coverage and aggregation of gold nanoparticles on silanized glasses

Autores
Scarpettini, Alberto Franco; Bragas, Andrea Veronica
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the dynamics of the coverage and aggregation of gold nanoparticles over organosilanized glass substrates for different sizes of nanoparticles. We present measurements of extinction spectra and nanoparticle counting statistics and demonstrate that both methods are equivalent describing those processes. We introduce models that describe the mentioned dynamics, which are characterized by an exponential-like function with two relevant parameters: a saturation value and a characteristic time. The electrostatic repulsion plays a significant role in both processes. The aggregation is dominated by the mobility of the isolated nanoparticles, which first join in dimers and, further in time, in clusters of higher number of nanoparticles. © 2010 American Chemical Society.
Fil: Scarpettini, Alberto Franco. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Bragas, Andrea Veronica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Materia
Metal Nanoparticles
Coverage
Aggregation
Silanized Glass
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:11336/57164
Acceder
id CONICETDig_57bea44292b24f03793b0777a4c41224
oai_identifier_str oai:ri.conicet.gov.ar:11336/57164
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Coverage and aggregation of gold nanoparticles on silanized glassesScarpettini, Alberto FrancoBragas, Andrea VeronicaMetal NanoparticlesCoverageAggregationSilanized Glasshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study the dynamics of the coverage and aggregation of gold nanoparticles over organosilanized glass substrates for different sizes of nanoparticles. We present measurements of extinction spectra and nanoparticle counting statistics and demonstrate that both methods are equivalent describing those processes. We introduce models that describe the mentioned dynamics, which are characterized by an exponential-like function with two relevant parameters: a saturation value and a characteristic time. The electrostatic repulsion plays a significant role in both processes. The aggregation is dominated by the mobility of the isolated nanoparticles, which first join in dimers and, further in time, in clusters of higher number of nanoparticles. © 2010 American Chemical Society.Fil: Scarpettini, Alberto Franco. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Bragas, Andrea Veronica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaAmerican Chemical Society2010-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/57164Scarpettini, Alberto Franco; Bragas, Andrea Veronica; Coverage and aggregation of gold nanoparticles on silanized glasses; American Chemical Society; Langmuir; 26; 20; 9-2010; 15948-159530743-7463CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/la102937binfo:eu-repo/semantics/altIdentifier/doi/10.1021/la102937binfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:56:27Zoai:ri.conicet.gov.ar:11336/57164instacron: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 09:56:28.194CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Coverage and aggregation of gold nanoparticles on silanized glasses
title Coverage and aggregation of gold nanoparticles on silanized glasses
spellingShingle Coverage and aggregation of gold nanoparticles on silanized glasses
Scarpettini, Alberto Franco
Metal Nanoparticles
Coverage
Aggregation
Silanized Glass
title_short Coverage and aggregation of gold nanoparticles on silanized glasses
title_full Coverage and aggregation of gold nanoparticles on silanized glasses
title_fullStr Coverage and aggregation of gold nanoparticles on silanized glasses
title_full_unstemmed Coverage and aggregation of gold nanoparticles on silanized glasses
title_sort Coverage and aggregation of gold nanoparticles on silanized glasses
dc.creator.none.fl_str_mv Scarpettini, Alberto Franco
Bragas, Andrea Veronica
author Scarpettini, Alberto Franco
author_facet Scarpettini, Alberto Franco
Bragas, Andrea Veronica
author_role author
author2 Bragas, Andrea Veronica
author2_role author
dc.subject.none.fl_str_mv Metal Nanoparticles
Coverage
Aggregation
Silanized Glass
topic Metal Nanoparticles
Coverage
Aggregation
Silanized Glass
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We study the dynamics of the coverage and aggregation of gold nanoparticles over organosilanized glass substrates for different sizes of nanoparticles. We present measurements of extinction spectra and nanoparticle counting statistics and demonstrate that both methods are equivalent describing those processes. We introduce models that describe the mentioned dynamics, which are characterized by an exponential-like function with two relevant parameters: a saturation value and a characteristic time. The electrostatic repulsion plays a significant role in both processes. The aggregation is dominated by the mobility of the isolated nanoparticles, which first join in dimers and, further in time, in clusters of higher number of nanoparticles. © 2010 American Chemical Society.
Fil: Scarpettini, Alberto Franco. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Bragas, Andrea Veronica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
description We study the dynamics of the coverage and aggregation of gold nanoparticles over organosilanized glass substrates for different sizes of nanoparticles. We present measurements of extinction spectra and nanoparticle counting statistics and demonstrate that both methods are equivalent describing those processes. We introduce models that describe the mentioned dynamics, which are characterized by an exponential-like function with two relevant parameters: a saturation value and a characteristic time. The electrostatic repulsion plays a significant role in both processes. The aggregation is dominated by the mobility of the isolated nanoparticles, which first join in dimers and, further in time, in clusters of higher number of nanoparticles. © 2010 American Chemical Society.
publishDate 2010
dc.date.none.fl_str_mv 2010-09
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/11336/57164
Scarpettini, Alberto Franco; Bragas, Andrea Veronica; Coverage and aggregation of gold nanoparticles on silanized glasses; American Chemical Society; Langmuir; 26; 20; 9-2010; 15948-15953
0743-7463
CONICET Digital
CONICET
url http://hdl.handle.net/11336/57164
identifier_str_mv Scarpettini, Alberto Franco; Bragas, Andrea Veronica; Coverage and aggregation of gold nanoparticles on silanized glasses; American Chemical Society; Langmuir; 26; 20; 9-2010; 15948-15953
0743-7463
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://pubs.acs.org/doi/abs/10.1021/la102937b
info:eu-repo/semantics/altIdentifier/doi/10.1021/la102937b
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.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical 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
_version_ 1842269403987574784
score 13.13397

Publicaciones similares