Polymer brush modified electrode with switchable selectivity triggered by pH changes enhanced by gold nanoparticles

Detalhes bibliográficos
Autor(a) principal: Sempionatto, Juliane R. [UNESP]
Data de Publicação: 2014
Outros Autores: Recco, Lucas C. [UNESP], Pedrosa, Valber A. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.5935/0103-5053.20130298
http://hdl.handle.net/11449/109550
Resumo: In this work, a sensor was built up with smart material based on polymer brush and gold nanoparticles. The modified electrode functionalized with polyacrylic acid (PAA) tethered to indium tin oxide (ITO) and covered with gold nanoparticle (ITO/PAA/Au) demonstrated switchable interfacial properties discriminating different pHs. The switchable electrochemical and plasmonic process was characterized by cyclic voltammetry (CV), electrochemistry impedance spectroscopy (EIS), and localized surface plasmon resonance (LSPR).
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spelling Polymer brush modified electrode with switchable selectivity triggered by pH changes enhanced by gold nanoparticlespolyacrylic acid (PAA)LSPRpolymer brushIn this work, a sensor was built up with smart material based on polymer brush and gold nanoparticles. The modified electrode functionalized with polyacrylic acid (PAA) tethered to indium tin oxide (ITO) and covered with gold nanoparticle (ITO/PAA/Au) demonstrated switchable interfacial properties discriminating different pHs. The switchable electrochemical and plasmonic process was characterized by cyclic voltammetry (CV), electrochemistry impedance spectroscopy (EIS), and localized surface plasmon resonance (LSPR).Neste trabalho foi desenvolvido um sensor com propriedades inteligentes, baseado em polímeros escova (poli-ácido acrílico) modificado com nanopartículas de ouro. Este novo material demonstrou propriedades comutáveis que podem discriminar diferentes pHs. O eletrodo foi caracterizado por voltametria cíclica (CV), espectroscopia de impedância eletroquímica (EIS) e ressonância plasmônica de superfície localizada (LSPR).Universidade Estadual Paulista Júlio de Mesquita Filho Departamento de Química e Bioquímica Instituto de BiociênciasUniversidade Estadual Paulista Júlio de Mesquita Filho Departamento de Química e Bioquímica Instituto de BiociênciasSociedade Brasileira de QuímicaUniversidade Estadual Paulista (Unesp)Sempionatto, Juliane R. [UNESP]Recco, Lucas C. [UNESP]Pedrosa, Valber A. [UNESP]2014-09-30T18:18:27Z2014-09-30T18:18:27Z2014-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article453-459application/pdfhttp://dx.doi.org/10.5935/0103-5053.20130298Journal of the Brazilian Chemical Society. Sociedade Brasileira de Química, v. 25, n. 3, p. 453-459, 2014.0103-5053http://hdl.handle.net/11449/10955010.5935/0103-5053.20130298S0103-50532014000300007WOS:000333329300007S0103-50532014000300007.pdf7781282422851911SciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Brazilian Chemical Society1.4440,357info:eu-repo/semantics/openAccess2024-01-20T06:33:26Zoai:repositorio.unesp.br:11449/109550Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:30:24.651748Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Polymer brush modified electrode with switchable selectivity triggered by pH changes enhanced by gold nanoparticles
title Polymer brush modified electrode with switchable selectivity triggered by pH changes enhanced by gold nanoparticles
spellingShingle Polymer brush modified electrode with switchable selectivity triggered by pH changes enhanced by gold nanoparticles
Sempionatto, Juliane R. [UNESP]
polyacrylic acid (PAA)
LSPR
polymer brush
title_short Polymer brush modified electrode with switchable selectivity triggered by pH changes enhanced by gold nanoparticles
title_full Polymer brush modified electrode with switchable selectivity triggered by pH changes enhanced by gold nanoparticles
title_fullStr Polymer brush modified electrode with switchable selectivity triggered by pH changes enhanced by gold nanoparticles
title_full_unstemmed Polymer brush modified electrode with switchable selectivity triggered by pH changes enhanced by gold nanoparticles
title_sort Polymer brush modified electrode with switchable selectivity triggered by pH changes enhanced by gold nanoparticles
author Sempionatto, Juliane R. [UNESP]
author_facet Sempionatto, Juliane R. [UNESP]
Recco, Lucas C. [UNESP]
Pedrosa, Valber A. [UNESP]
author_role author
author2 Recco, Lucas C. [UNESP]
Pedrosa, Valber A. [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Sempionatto, Juliane R. [UNESP]
Recco, Lucas C. [UNESP]
Pedrosa, Valber A. [UNESP]
dc.subject.por.fl_str_mv polyacrylic acid (PAA)
LSPR
polymer brush
topic polyacrylic acid (PAA)
LSPR
polymer brush
description In this work, a sensor was built up with smart material based on polymer brush and gold nanoparticles. The modified electrode functionalized with polyacrylic acid (PAA) tethered to indium tin oxide (ITO) and covered with gold nanoparticle (ITO/PAA/Au) demonstrated switchable interfacial properties discriminating different pHs. The switchable electrochemical and plasmonic process was characterized by cyclic voltammetry (CV), electrochemistry impedance spectroscopy (EIS), and localized surface plasmon resonance (LSPR).
publishDate 2014
dc.date.none.fl_str_mv 2014-09-30T18:18:27Z
2014-09-30T18:18:27Z
2014-03-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.5935/0103-5053.20130298
Journal of the Brazilian Chemical Society. Sociedade Brasileira de Química, v. 25, n. 3, p. 453-459, 2014.
0103-5053
http://hdl.handle.net/11449/109550
10.5935/0103-5053.20130298
S0103-50532014000300007
WOS:000333329300007
S0103-50532014000300007.pdf
7781282422851911
url http://dx.doi.org/10.5935/0103-5053.20130298
http://hdl.handle.net/11449/109550
identifier_str_mv Journal of the Brazilian Chemical Society. Sociedade Brasileira de Química, v. 25, n. 3, p. 453-459, 2014.
0103-5053
10.5935/0103-5053.20130298
S0103-50532014000300007
WOS:000333329300007
S0103-50532014000300007.pdf
7781282422851911
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of the Brazilian Chemical Society
1.444
0,357
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 453-459
application/pdf
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv SciELO
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129526995091456

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