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
- Institución
- Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
- OAI Identificador
- oai:digital.cic.gba.gob.ar:11746/559
Ver los metadatos del registro completo
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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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1846783905263255552 |
score |
12.982451 |