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American Chemical Society, ACS Applied Materials and Interfaces, 1(4), p. 44-48, 2011

DOI: 10.1021/am201508d

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Carbon Nanotube Nanoweb-Bioelectrode for Highly Selective Dopamine Sensing

Journal article published in 2011 by Jie Zhao, Weimin Zhang, Peter Sherrell, Joselito M. Razal, Xu-Feng Huang ORCID, Andrew I. Minett, Jun Chen
This paper is available in a repository.
This paper is available in a repository.

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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 O(2)-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).