title: Carbon nanotube nanoweb-bioelectrode for highly selective dopamine sensing.
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).
authors.affiliation: Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, Australian Institute of Innovative Materials, Innovation Campus, IHMRI, School of Health Sciences, University of Wollongong, NSW 2522, Australia.
authors.forename: Jie
authors.initials: J
authors.lastname: Zhao
authors.forename: Weimin
authors.initials: W
authors.lastname: Zhang
authors.forename: Peter
authors.initials: P
authors.lastname: Sherrell
authors.forename: Joselito M
authors.initials: JM
authors.lastname: Razal
authors.forename: Xu-Feng
authors.initials: XF
authors.lastname: Huang
authors.forename: Andrew I
authors.initials: AI
authors.lastname: Minett
authors.forename: Jun
authors.initials: J
authors.lastname: Chen
mesh_terms: D000327:Adsorption; D015374:Biosensing Techniques / Q000295:instrumentation* / Q000379:methods; D004298:Dopamine / Q000737:chemistry*; D004566:Electrodes; D037742:Nanotubes, Carbon / Q000737:chemistry*
chemical_list: D037742:Nanotubes, Carbon; D004298:Dopamine