Synthesis of ultra-small cysteine-capped gold nanoparticles by pH switching of the Au(I)-cysteine polymer

We report a synthetic approach for the production of ultra-small (0.6 nm) gold nanoparticles soluble in water with a precise control of the nanoparticle size. Our synthetic approach utilizes a pH-depending Au/cysteine polymer as a quencher for the AuNPs grown. The method extends the synthetic capabi...

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Autores: Cappellari, Paula Sofía, Buceta, David, Morales, Gustavo Marcelo, Barbero, César Alfredo, Moreno, Mario Sergio Jesus, Giovanetti, Lisandro Jose, Ramallo Lopez, Jose Martin, Requejo, Felix Gregorio, Craievich, Aldo F., Planes, Gabriel Angel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/5475
Acceso en línea:http://hdl.handle.net/11336/5475
Access Level:acceso abierto
Palabra clave:Gold Nanoparticles
Cysteine
Au-Cysteine Polymer
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
id AR_d2d75568f0e52db649eccbb2a7fc94d4
oai_identifier_str oai:ri.conicet.gov.ar:11336/5475
network_acronym_str AR
network_name_str Argentina
repository_id_str
dc.title.none.fl_str_mv Synthesis of ultra-small cysteine-capped gold nanoparticles by pH switching of the Au(I)-cysteine polymer
title Synthesis of ultra-small cysteine-capped gold nanoparticles by pH switching of the Au(I)-cysteine polymer
spellingShingle Synthesis of ultra-small cysteine-capped gold nanoparticles by pH switching of the Au(I)-cysteine polymer
Cappellari, Paula Sofía
Gold Nanoparticles
Cysteine
Au-Cysteine Polymer
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
title_short Synthesis of ultra-small cysteine-capped gold nanoparticles by pH switching of the Au(I)-cysteine polymer
title_full Synthesis of ultra-small cysteine-capped gold nanoparticles by pH switching of the Au(I)-cysteine polymer
title_fullStr Synthesis of ultra-small cysteine-capped gold nanoparticles by pH switching of the Au(I)-cysteine polymer
title_full_unstemmed Synthesis of ultra-small cysteine-capped gold nanoparticles by pH switching of the Au(I)-cysteine polymer
title_sort Synthesis of ultra-small cysteine-capped gold nanoparticles by pH switching of the Au(I)-cysteine polymer
dc.creator.none.fl_str_mv Cappellari, Paula Sofía
Buceta, David
Morales, Gustavo Marcelo
Barbero, César Alfredo
Moreno, Mario Sergio Jesus
Giovanetti, Lisandro Jose
Ramallo Lopez, Jose Martin
Requejo, Felix Gregorio
Craievich, Aldo F.
Planes, Gabriel Angel
author Cappellari, Paula Sofía
author_facet Cappellari, Paula Sofía
Buceta, David
Morales, Gustavo Marcelo
Barbero, César Alfredo
Moreno, Mario Sergio Jesus
Giovanetti, Lisandro Jose
Ramallo Lopez, Jose Martin
Requejo, Felix Gregorio
Craievich, Aldo F.
Planes, Gabriel Angel
author_role author
author2 Buceta, David
Morales, Gustavo Marcelo
Barbero, César Alfredo
Moreno, Mario Sergio Jesus
Giovanetti, Lisandro Jose
Ramallo Lopez, Jose Martin
Requejo, Felix Gregorio
Craievich, Aldo F.
Planes, Gabriel Angel
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Gold Nanoparticles
Cysteine
Au-Cysteine Polymer
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
topic Gold Nanoparticles
Cysteine
Au-Cysteine Polymer
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
description We report a synthetic approach for the production of ultra-small (0.6 nm) gold nanoparticles soluble in water with a precise control of the nanoparticle size. Our synthetic approach utilizes a pH-depending Au/cysteine polymer as a quencher for the AuNPs grown. The method extends the synthetic capabilities of nanoparticles with sizes down to 1 nm. In addition to the strict pH control, the existence of free -SH groups present in the mixture of reaction has been observed as a key requirement for the synthesis of small nanoparticles in mild conditions. UV-Vis, SAXS, XANES, EXAFS and HR-TEM, has been used to determinate the particle size, characterization of the gold precursor and gold-cysteine interaction.
publishDate 2015
dc.date.none.fl_str_mv 2015-03
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/11336/5475
Cappellari, Paula Sofía; Buceta, David; Morales, Gustavo Marcelo; Barbero, César Alfredo; Moreno, Mario Sergio Jesus; et al.; Synthesis of ultra-small cysteine-capped gold nanoparticles by pH switching of the Au(I)-cysteine polymer; Elsevier; Journal of Colloid and Interface Science; 441; 3-2015; 17-24
0021-9797
url http://hdl.handle.net/11336/5475
identifier_str_mv Cappellari, Paula Sofía; Buceta, David; Morales, Gustavo Marcelo; Barbero, César Alfredo; Moreno, Mario Sergio Jesus; et al.; Synthesis of ultra-small cysteine-capped gold nanoparticles by pH switching of the Au(I)-cysteine polymer; Elsevier; Journal of Colloid and Interface Science; 441; 3-2015; 17-24
0021-9797
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jcis.2014.11.016
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0021979714008649
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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_ 1799195570884050944
spelling Synthesis of ultra-small cysteine-capped gold nanoparticles by pH switching of the Au(I)-cysteine polymerCappellari, Paula SofíaBuceta, DavidMorales, Gustavo MarceloBarbero, César AlfredoMoreno, Mario Sergio JesusGiovanetti, Lisandro JoseRamallo Lopez, Jose MartinRequejo, Felix GregorioCraievich, Aldo F.Planes, Gabriel AngelGold NanoparticlesCysteineAu-Cysteine Polymerhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1We report a synthetic approach for the production of ultra-small (0.6 nm) gold nanoparticles soluble in water with a precise control of the nanoparticle size. Our synthetic approach utilizes a pH-depending Au/cysteine polymer as a quencher for the AuNPs grown. The method extends the synthetic capabilities of nanoparticles with sizes down to 1 nm. In addition to the strict pH control, the existence of free -SH groups present in the mixture of reaction has been observed as a key requirement for the synthesis of small nanoparticles in mild conditions. UV-Vis, SAXS, XANES, EXAFS and HR-TEM, has been used to determinate the particle size, characterization of the gold precursor and gold-cysteine interaction.Fil: Cappellari, Paula Sofía. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Buceta, David. Universidad de Santiago de Compostela; EspañaFil: Morales, Gustavo Marcelo. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Barbero, César Alfredo. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Moreno, Mario Sergio Jesus. Comision Nacional de Energia Atomica. Centro Atomico Bariloche; ArgentinaFil: Giovanetti, Lisandro Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; ArgentinaFil: Ramallo Lopez, Jose Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; ArgentinaFil: Requejo, Felix Gregorio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; ArgentinaFil: Craievich, Aldo F.. Universidade de Sao Paulo. Instituto de Física; BrasilFil: Planes, Gabriel Angel. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaElsevier2015-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5475Cappellari, Paula Sofía; Buceta, David; Morales, Gustavo Marcelo; Barbero, César Alfredo; Moreno, Mario Sergio Jesus; et al.; Synthesis of ultra-small cysteine-capped gold nanoparticles by pH switching of the Au(I)-cysteine polymer; Elsevier; Journal of Colloid and Interface Science; 441; 3-2015; 17-240021-9797enginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jcis.2014.11.016info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0021979714008649info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:56:42Zoai:ri.conicet.gov.ar:11336/5475instacron: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:34982024-05-08 13:56:42.507CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
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