Publication:
Polymer Brush Modified Electrode with Switchable Selectivity Triggered by pH Changes Enhanced by Gold Nanoparticles

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Date

2014-01-01

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Destech Publications, Inc

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Abstract

In this work a pH sensor was build up with smart material based on polymer brush and gold nanoparticles. The modified electrode functionalized with a polymer brush Polyacrylic Acid (PAA) tethered to the surface and covered with gold nanoparticle (ITO/PAA/Au) demonstrated switchable interfacial properties discriminating different pHs. The switchable electrochemical and plasmonic process was characterized by differential pulse voltammetry (DPV), Faradaic impedance spectroscopy (EIS), cyclic voltammetry (CV) and Localized Surface Plasmon Resonance (LSPR).

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Keywords

Polyacrylic Acid (PAA), LSPR, polymer brush, pH sensor

Language

English

Citation

International Conference On Material Science And Material Engineering (msme 2014). Lancaster: Destech Publications, Inc, p. 271-277, 2014.

URI

http://hdl.handle.net/11449/184755

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Botucatu - IBB - Instituto de Biociências

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