A Bioinspired Approach to the Synthesis of Bimetallic CoNi Nanoparticles

Autores
Gálvez, Natividad; Valero, Elsa; Ceolin, Marcelo Raul; Trasobares, Susana; López Haro, Miguel; Calvino, José J.; Domínguez Vera, José M.
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Bimetallic CoNi nanoparticles have been prepared within the apoferritin cavity. The protein shell controls Size, prevents aggregation, and makes nanoparticles water-soluble. The CoNi series prepared in this way were structurally and magnetically characterized, the resulting magnetic properties varying accordingly with composition (Co75/Ni25, Co50/Ni50, Co25/Ni75). Co and Ni metals were associated in each nanoparticle, as demonstrated by high-angle annular dark field scanning electron microscopy and electron energy loss spectroscopy (EELS). After intentional oxidation, the CoNi nanoparticles were characterized by EELS, X-ray absorption near edge structure (XANES), and SQUID measurements to evaluate the importance of the oxidation on magnetic properties.(Co75/Ni25, Co50/Ni50, Co25/Ni75). Co and Ni metals were associated in each nanoparticle, as demonstrated by high-angle annular dark field scanning electron microscopy and electron energy loss spectroscopy (EELS). After intentional oxidation, the CoNi nanoparticles were characterized by EELS, X-ray absorption near edge structure (XANES), and SQUID measurements to evaluate the importance of the oxidation on magnetic properties.
Fil: Gálvez, Natividad. Universidad de Granada; España
Fil: Valero, Elsa. Universidad de Granada; España
Fil: Ceolin, Marcelo Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Trasobares, Susana. Universidad de Cádiz; España
Fil: López Haro, Miguel. Universidad de Cádiz; España
Fil: Calvino, José J.. Universidad de Cádiz; España
Fil: Domínguez Vera, José M.. Universidad de Granada; España
Materia
nanociencias
espectroscopía
luz sincrotron
magnetismo
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:11336/275336
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/275336
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A Bioinspired Approach to the Synthesis of Bimetallic CoNi NanoparticlesGálvez, NatividadValero, ElsaCeolin, Marcelo RaulTrasobares, SusanaLópez Haro, MiguelCalvino, José J.Domínguez Vera, José M.nanocienciasespectroscopíaluz sincrotronmagnetismohttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Bimetallic CoNi nanoparticles have been prepared within the apoferritin cavity. The protein shell controls Size, prevents aggregation, and makes nanoparticles water-soluble. The CoNi series prepared in this way were structurally and magnetically characterized, the resulting magnetic properties varying accordingly with composition (Co75/Ni25, Co50/Ni50, Co25/Ni75). Co and Ni metals were associated in each nanoparticle, as demonstrated by high-angle annular dark field scanning electron microscopy and electron energy loss spectroscopy (EELS). After intentional oxidation, the CoNi nanoparticles were characterized by EELS, X-ray absorption near edge structure (XANES), and SQUID measurements to evaluate the importance of the oxidation on magnetic properties.(Co75/Ni25, Co50/Ni50, Co25/Ni75). Co and Ni metals were associated in each nanoparticle, as demonstrated by high-angle annular dark field scanning electron microscopy and electron energy loss spectroscopy (EELS). After intentional oxidation, the CoNi nanoparticles were characterized by EELS, X-ray absorption near edge structure (XANES), and SQUID measurements to evaluate the importance of the oxidation on magnetic properties.Fil: Gálvez, Natividad. Universidad de Granada; EspañaFil: Valero, Elsa. Universidad de Granada; EspañaFil: Ceolin, Marcelo Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Trasobares, Susana. Universidad de Cádiz; EspañaFil: López Haro, Miguel. Universidad de Cádiz; EspañaFil: Calvino, José J.. Universidad de Cádiz; EspañaFil: Domínguez Vera, José M.. Universidad de Granada; EspañaAmerican Chemical Society2010-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/275336Gálvez, Natividad; Valero, Elsa; Ceolin, Marcelo Raul; Trasobares, Susana; López Haro, Miguel; et al.; A Bioinspired Approach to the Synthesis of Bimetallic CoNi Nanoparticles; American Chemical Society; Inorganic Chemistry; 49; 4; 1-2010; 1705-17110020-1669CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/ic902128ginfo:eu-repo/semantics/altIdentifier/doi/10.1021/ic902128ginfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-12-23T13:46:07Zoai:ri.conicet.gov.ar:11336/275336instacron: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:34982025-12-23 13:46:07.492CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A Bioinspired Approach to the Synthesis of Bimetallic CoNi Nanoparticles
title A Bioinspired Approach to the Synthesis of Bimetallic CoNi Nanoparticles
spellingShingle A Bioinspired Approach to the Synthesis of Bimetallic CoNi Nanoparticles
Gálvez, Natividad
nanociencias
espectroscopía
luz sincrotron
magnetismo
title_short A Bioinspired Approach to the Synthesis of Bimetallic CoNi Nanoparticles
title_full A Bioinspired Approach to the Synthesis of Bimetallic CoNi Nanoparticles
title_fullStr A Bioinspired Approach to the Synthesis of Bimetallic CoNi Nanoparticles
title_full_unstemmed A Bioinspired Approach to the Synthesis of Bimetallic CoNi Nanoparticles
title_sort A Bioinspired Approach to the Synthesis of Bimetallic CoNi Nanoparticles
dc.creator.none.fl_str_mv Gálvez, Natividad
Valero, Elsa
Ceolin, Marcelo Raul
Trasobares, Susana
López Haro, Miguel
Calvino, José J.
Domínguez Vera, José M.
author Gálvez, Natividad
author_facet Gálvez, Natividad
Valero, Elsa
Ceolin, Marcelo Raul
Trasobares, Susana
López Haro, Miguel
Calvino, José J.
Domínguez Vera, José M.
author_role author
author2 Valero, Elsa
Ceolin, Marcelo Raul
Trasobares, Susana
López Haro, Miguel
Calvino, José J.
Domínguez Vera, José M.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv nanociencias
espectroscopía
luz sincrotron
magnetismo
topic nanociencias
espectroscopía
luz sincrotron
magnetismo
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Bimetallic CoNi nanoparticles have been prepared within the apoferritin cavity. The protein shell controls Size, prevents aggregation, and makes nanoparticles water-soluble. The CoNi series prepared in this way were structurally and magnetically characterized, the resulting magnetic properties varying accordingly with composition (Co75/Ni25, Co50/Ni50, Co25/Ni75). Co and Ni metals were associated in each nanoparticle, as demonstrated by high-angle annular dark field scanning electron microscopy and electron energy loss spectroscopy (EELS). After intentional oxidation, the CoNi nanoparticles were characterized by EELS, X-ray absorption near edge structure (XANES), and SQUID measurements to evaluate the importance of the oxidation on magnetic properties.(Co75/Ni25, Co50/Ni50, Co25/Ni75). Co and Ni metals were associated in each nanoparticle, as demonstrated by high-angle annular dark field scanning electron microscopy and electron energy loss spectroscopy (EELS). After intentional oxidation, the CoNi nanoparticles were characterized by EELS, X-ray absorption near edge structure (XANES), and SQUID measurements to evaluate the importance of the oxidation on magnetic properties.
Fil: Gálvez, Natividad. Universidad de Granada; España
Fil: Valero, Elsa. Universidad de Granada; España
Fil: Ceolin, Marcelo Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Trasobares, Susana. Universidad de Cádiz; España
Fil: López Haro, Miguel. Universidad de Cádiz; España
Fil: Calvino, José J.. Universidad de Cádiz; España
Fil: Domínguez Vera, José M.. Universidad de Granada; España
description Bimetallic CoNi nanoparticles have been prepared within the apoferritin cavity. The protein shell controls Size, prevents aggregation, and makes nanoparticles water-soluble. The CoNi series prepared in this way were structurally and magnetically characterized, the resulting magnetic properties varying accordingly with composition (Co75/Ni25, Co50/Ni50, Co25/Ni75). Co and Ni metals were associated in each nanoparticle, as demonstrated by high-angle annular dark field scanning electron microscopy and electron energy loss spectroscopy (EELS). After intentional oxidation, the CoNi nanoparticles were characterized by EELS, X-ray absorption near edge structure (XANES), and SQUID measurements to evaluate the importance of the oxidation on magnetic properties.(Co75/Ni25, Co50/Ni50, Co25/Ni75). Co and Ni metals were associated in each nanoparticle, as demonstrated by high-angle annular dark field scanning electron microscopy and electron energy loss spectroscopy (EELS). After intentional oxidation, the CoNi nanoparticles were characterized by EELS, X-ray absorption near edge structure (XANES), and SQUID measurements to evaluate the importance of the oxidation on magnetic properties.
publishDate 2010
dc.date.none.fl_str_mv 2010-01
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/11336/275336
Gálvez, Natividad; Valero, Elsa; Ceolin, Marcelo Raul; Trasobares, Susana; López Haro, Miguel; et al.; A Bioinspired Approach to the Synthesis of Bimetallic CoNi Nanoparticles; American Chemical Society; Inorganic Chemistry; 49; 4; 1-2010; 1705-1711
0020-1669
CONICET Digital
CONICET
url http://hdl.handle.net/11336/275336
identifier_str_mv Gálvez, Natividad; Valero, Elsa; Ceolin, Marcelo Raul; Trasobares, Susana; López Haro, Miguel; et al.; A Bioinspired Approach to the Synthesis of Bimetallic CoNi Nanoparticles; American Chemical Society; Inorganic Chemistry; 49; 4; 1-2010; 1705-1711
0020-1669
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.acs.org/doi/10.1021/ic902128g
info:eu-repo/semantics/altIdentifier/doi/10.1021/ic902128g
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
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_ 1852335378800836608
score 12.952241

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