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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/109550
Title: 
Polymer brush modified electrode with switchable selectivity triggered by pH changes enhanced by gold nanoparticles
Author(s): 
Institution: 
Universidade Estadual Paulista (UNESP)
ISSN: 
0103-5053
Abstract: 
  • 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).
  • 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).
Issue Date: 
1-Mar-2014
Citation: 
Journal of the Brazilian Chemical Society. Sociedade Brasileira de Química, v. 25, n. 3, p. 453-459, 2014.
Time Duration: 
453-459
Publisher: 
Sociedade Brasileira de Química
Keywords: 
  • polyacrylic acid (PAA)
  • LSPR
  • polymer brush
Source: 
http://dx.doi.org/10.5935/0103-5053.20130298
URI: 
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/109550
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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