生物分子多巴胺为掺杂剂电化学聚合PPy  

Electropolymerization of polypyrrole doped with biomolecules of dopamine

作　　者：王静[1] 孙晓亮[1] 孙小杰[1] 肖迎红[1] 

机构地区：[1]南京理工大学化工学院,江苏南京210094

出　　处：《化学传感器》2006年第1期59-63,共5页Chemical Sensors

基　　金：国家自然科学基金资助项目;批准号50373019

摘　　要：根据阴阳离子电荷平衡原理电化学合成多巴胺(DA)掺杂的聚吡咯(PPy)化学修饰电极,利用循环伏安曲线(CV)、红外光谱(FTIR)、紫外-可见光谱(UV)对合成产物进行表征,结果表明,生物分子多巴胺有效掺杂进PPy中。通过对PPy/DA化学修饰电极的CV曲线及EIS曲线进行测试发现,掺杂DA后,电极仍具有较好的传输电荷的能力,在此基础上探讨了多巴胺掺杂的原理。Polypyrrole chemically modified gold electrodes were electropolymerized doped with dopamine based on charge -balance mechanism. Cyclic vohammctry, Fourier transmission Infra -red spectroscopy and ultraviolet were used to characterize the PPy/DA films. It indicated that DA biomolecules were effectively doped in PPy. CV curves and EIS curves suggested that the PPy/DA chemically modified electrode still had a good ability of transferring electric charge. Mechanism of doping in electropolymerization was investigated.

关 键 词：聚吡咯 掺杂 电化学性能 多巴胺 

分 类 号：TP212.3[自动化与计算机技术—检测技术与自动化装置]