Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7233635 | Biosensors and Bioelectronics | 2014 | 4 Pages |
Abstract
Significantly enhanced catalytic activity of a nanocomposite composed of conducting polymer poly (3,4-ethylenedioxythiophene) (PEDOT) doped with graphene oxide (GO) was achieved through a simple electrochemical reduction process. The nanocomposite (PEDOT/GO) was electrodeposited on an electrode and followed by electrochemical reduction, and the obtained reduced nanocomposite (PEDOT/RGO) modified electrode exhibited lowered electrochemical impedance and excellent electrocatalytic activity towards the oxidation of dopamine. Based on the excellent catalytic property of PEDOT/RGO, an electrochemical sensor capable of sensitive and selective detection of DA was developed. The fabricated sensor can detect DA in a wide linear range from 0.1 to 175 μM, with a detection limit of 39 nM, and it is free from common interferences such as uric acid and ascorbic acid.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Wenting Wang, Guiyun Xu, Xinyan Tracy Cui, Ge Sheng, Xiliang Luo,