Sizing gold nanoparticles by optical extinction spectroscopy

Autores
Scaffardi, Lucía Beatriz; Pellegrini, María Celeste; de Sanctis, O.; Tocho, Jorge Omar
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión enviada
Descripción
The measurement of optical extinction is used to determine the size of nearly spherical gold nanoparticles suspended in solution, produced by a 'reverse micelles' process. The contrast between the maximum and the minimum in the extinction spectra around 450 and 520 nm shows a linear dependence with the mean radius of the gold particles less than 3 nm; however, the method can be used to size particles up to 7 nm. Experimental results for extinction spectra can be fitted by Mie's theory if the optical constants from bulk material values are modified by introducing the limitation of the mean free path due to collisions of conduction electrons with the boundary of the nanoparticles.
Materia
Ciencias Físicas
accelerators
beams and electromagnetism
condensed matter
Nanoscale science and low-D systems
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
CIC Digital (CICBA)
Institución
Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
OAI Identificador
oai:digital.cic.gba.gob.ar:11746/559
Acceder
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oai_identifier_str oai:digital.cic.gba.gob.ar:11746/559
network_acronym_str CICBA
repository_id_str 9441
network_name_str CIC Digital (CICBA)
spelling Sizing gold nanoparticles by optical extinction spectroscopyScaffardi, Lucía BeatrizPellegrini, María Celestede Sanctis, O.Tocho, Jorge OmarCiencias Físicasacceleratorsbeams and electromagnetismcondensed matterNanoscale science and low-D systemsThe measurement of optical extinction is used to determine the size of nearly spherical gold nanoparticles suspended in solution, produced by a 'reverse micelles' process. The contrast between the maximum and the minimum in the extinction spectra around 450 and 520 nm shows a linear dependence with the mean radius of the gold particles less than 3 nm; however, the method can be used to size particles up to 7 nm. Experimental results for extinction spectra can be fitted by Mie's theory if the optical constants from bulk material values are modified by introducing the limitation of the mean free path due to collisions of conduction electrons with the boundary of the nanoparticles.Centro de Investigaciones Ópticas (CIOP)2005info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://digital.cic.gba.gob.ar/handle/11746/559enghttp://digital.cic.gba.gob.ar/handle/123456789/68info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/reponame:CIC Digital (CICBA)instname:Comisión de Investigaciones Científicas de la Provincia de Buenos Airesinstacron:CICBA2025-10-23T11:14:39Zoai:digital.cic.gba.gob.ar:11746/559Institucionalhttp://digital.cic.gba.gob.arOrganismo científico-tecnológicoNo correspondehttp://digital.cic.gba.gob.ar/oai/snrdmarisa.degiusti@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:94412025-10-23 11:14:39.377CIC Digital (CICBA) - Comisión de Investigaciones Científicas de la Provincia de Buenos Airesfalse
dc.title.none.fl_str_mv Sizing gold nanoparticles by optical extinction spectroscopy
title Sizing gold nanoparticles by optical extinction spectroscopy
spellingShingle Sizing gold nanoparticles by optical extinction spectroscopy
Scaffardi, Lucía Beatriz
Ciencias Físicas
accelerators
beams and electromagnetism
condensed matter
Nanoscale science and low-D systems
title_short Sizing gold nanoparticles by optical extinction spectroscopy
title_full Sizing gold nanoparticles by optical extinction spectroscopy
title_fullStr Sizing gold nanoparticles by optical extinction spectroscopy
title_full_unstemmed Sizing gold nanoparticles by optical extinction spectroscopy
title_sort Sizing gold nanoparticles by optical extinction spectroscopy
dc.creator.none.fl_str_mv Scaffardi, Lucía Beatriz
Pellegrini, María Celeste
de Sanctis, O.
Tocho, Jorge Omar
author Scaffardi, Lucía Beatriz
author_facet Scaffardi, Lucía Beatriz
Pellegrini, María Celeste
de Sanctis, O.
Tocho, Jorge Omar
author_role author
author2 Pellegrini, María Celeste
de Sanctis, O.
Tocho, Jorge Omar
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias Físicas
accelerators
beams and electromagnetism
condensed matter
Nanoscale science and low-D systems
topic Ciencias Físicas
accelerators
beams and electromagnetism
condensed matter
Nanoscale science and low-D systems
dc.description.none.fl_txt_mv The measurement of optical extinction is used to determine the size of nearly spherical gold nanoparticles suspended in solution, produced by a 'reverse micelles' process. The contrast between the maximum and the minimum in the extinction spectra around 450 and 520 nm shows a linear dependence with the mean radius of the gold particles less than 3 nm; however, the method can be used to size particles up to 7 nm. Experimental results for extinction spectra can be fitted by Mie's theory if the optical constants from bulk material values are modified by introducing the limitation of the mean free path due to collisions of conduction electrons with the boundary of the nanoparticles.
description The measurement of optical extinction is used to determine the size of nearly spherical gold nanoparticles suspended in solution, produced by a 'reverse micelles' process. The contrast between the maximum and the minimum in the extinction spectra around 450 and 520 nm shows a linear dependence with the mean radius of the gold particles less than 3 nm; however, the method can be used to size particles up to 7 nm. Experimental results for extinction spectra can be fitted by Mie's theory if the optical constants from bulk material values are modified by introducing the limitation of the mean free path due to collisions of conduction electrons with the boundary of the nanoparticles.
publishDate 2005
dc.date.none.fl_str_mv 2005
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv https://digital.cic.gba.gob.ar/handle/11746/559
url https://digital.cic.gba.gob.ar/handle/11746/559
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://digital.cic.gba.gob.ar/handle/123456789/68
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Centro de Investigaciones Ópticas (CIOP)
publisher.none.fl_str_mv Centro de Investigaciones Ópticas (CIOP)
dc.source.none.fl_str_mv reponame:CIC Digital (CICBA)
instname:Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
instacron:CICBA
reponame_str CIC Digital (CICBA)
collection CIC Digital (CICBA)
instname_str Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
instacron_str CICBA
institution CICBA
repository.name.fl_str_mv CIC Digital (CICBA) - Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
repository.mail.fl_str_mv marisa.degiusti@sedici.unlp.edu.ar
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score 12.982451

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