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

Journal of the Brazilian Chemical Society

Juliane R. Sempionatto¹  Lucas C. Recco¹  Valber A. Pedrosa¹ 

[1] ,Universidade Estadual Paulista Júlio de Mesquita Filho Departamento de Química e Bioquímica Instituto de BiociênciasBotucatu SP ,Brazil

关键词: polyacrylic acid (PAA);    LSPR;    polymer brush;   

DOI  :  10.5935/0103-5053.20130298

来源: SciELO

【 摘 要 】

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).

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License