Carbon nanotube nanoweb-bioelectrode for highly selective dopamine sensing

Authors

Jie Zhao, University Of WollongongFollow
Weimin Zhang, University Of WollongongFollow
Peter Sherrell, University of WollongongFollow
Joselito M. Razal, University of WollongongFollow
Xu-Feng Huang, University of WollongongFollow
Andrew I. Minett, University Of SydneyFollow
Jun Chen, University of WollongongFollow

RIS ID

50501

Publication Details

Zhao, J., Zhang, W., Sherrell, P., Razal, J. M., Huang, X., Minett, A. I. & Chen, J. (2012). Carbon Nanotube Nanoweb-Bioelectrode for Highly Selective Dopamine Sensing. ACS Applied Materials and Interfaces, 4 (1), 44-48.

Abstract

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-IR, and cyclic voltammetry (CV). Our investigations indicated that the O₂-plasma treated CNT-N electrode could serve as a highly sensitive biosensor for the selective sensing of dopamine (DA, 1 μM to 20 μM) in the presence of ascorbic acid (AA, 1000 μM).

Grant Number

ARC/DP0987503

Additional Grant Number

http://purl.org/au-research/grants/ARC/DP0987503