Carbon Nanotube Nanoweb-Bioelectrode for Highly Selective Dopamine Sensing

被引：79

作者：

Zhao, Jie ^{[1
]}

Zhang, Weimin ^{[1
,3
]}

Sherrell, Peter ^{[1
]}

Razal, Joselito M. ^{[1
]}

Huang, Xu-Feng ^{[2
]}

Minett, Andrew I. ^{[3
]}

Chen, Jun ^{[1
]}

机构：

[1] Univ Wollongong, ARC Ctr Excellence Electromat Sci, Australian Inst Innovat Mat, Intelligent Polymer Res Inst,Sch Hlth Sci, Wollongong, NSW 2522, Australia

[2] Univ Wollongong, Sch Hlth Sci, IHMRI, Ctr Translat Neurosci, Wollongong, NSW 2522, Australia

[3] Univ Sydney, Sch Chem & Biomol Engn, Lab Sustainable Technol, Sydney, NSW 2006, Australia

来源：

ACS APPLIED MATERIALS & INTERFACES | 2012年 / 4卷 / 01期

基金：

澳大利亚研究理事会;

关键词：

dopamine; ascorbic acid; carbon nanotube nanoweb; O-2; plasma; biosensor; ASCORBIC-ACID; URIC-ACID; OXIDATION; COMPOSITE; GROWTH; SENSOR;

D O I：

10.1021/am201508d

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A highly sensitive and selective dopamine sensor was fabricated with the unique 3D carbon nanotube nanoweb (CNT-N) electrode. The as-synthesised CNT-N was modified by oxygen plasma to graft functional groups in order to increase selective electroactive sites at the CNT sidewalls. This electrode was characterized physically and electrochemically using HRSEM, Raman, FT-W, and cyclic voltammetry (CV). Our investigations indicated that the O-2-plasma treated CNT-N electrode could serve as a highly sensitive biosensor for the selective sensing of dopamine (DA, 1 mu M to 20 mu M) in the presence of ascorbic acid (AA, 1000 mu M).

引用

页码：44 / 48

页数：5

共 37 条

[1] A Nonoxidative Electrochemical Sensor Based on a Self-Doped Polyaniline/Carbon Nanotube Composite for Sensitive and Selective Detection of the Neurotransmitter Dopamine: A Review [J].