Effect of experimental factors on the properties of PEDOT-NaPSS galvanostatically deposited from an aqueous micellar media for invasive electrodes

The 5th 2012 Biomedical Engineering International Conference Pub Date : 2012-12-01 DOI:10.1109/BMEICON.2012.6465500

R. Starbird, W. Bauhofer, Mario A. Meza-Cuevas, W. Krautschneider

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引用次数: 12

Abstract

Poly(3,4-ethylenedioxythiophene) (PEDOT) coat for invasive electrodes has been generated considerable interest in terms of electrical properties and biocompatibility. Adequate formulations and methodology are necessary to deposit polymer reproducibly on macro and micro-electrodes. Electrochemical properties of PEDOT as interface material were assessed with respect to different experimental factors. PEDOT/NaPSS was polymerized from a sodium polystyrenesulfonate (NaPSS) dispersion. The dispersion was characterized by cyclic voltammetry and its critical micellar concentration (CMC) value is reported, according to our best knowledge, for the first time for PEDOT deposition. The polymer obtained was studied using Raman spectroscopy, impedance and cyclic voltammetry measurement. PEDOT-NaPSS coat shows high charge injection (Qinj), low interfacial impedance (Z) and superficial chemical stability (Raman). This study provides a simple, constant and reproducible framework to coat invasive electrodes.

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实验因素对水胶束介质中PEDOT-NaPSS静电沉积性能的影响

聚(3,4-乙烯二氧噻吩)(PEDOT)侵入电极涂层在电学性能和生物相容性方面引起了广泛的关注。适当的配方和方法是必要的沉积聚合物可重复的宏观和微观电极。考察了不同实验因素下PEDOT作为界面材料的电化学性能。以聚苯磺酸钠(NaPSS)为分散体，制备了PEDOT/NaPSS聚合物。用循环伏安法对分散体进行了表征，并首次报道了PEDOT沉积的临界胶束浓度(CMC)值。用拉曼光谱法、阻抗法和循环伏安法对所得聚合物进行了研究。PEDOT-NaPSS涂层表现出高电荷注入率(Qinj)、低界面阻抗(Z)和表面化学稳定性(拉曼)。这项研究提供了一个简单、稳定和可重复的框架来覆盖侵入电极。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The 5th 2012 Biomedical Engineering International Conference

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