Authors
Alexander R Harris, Simeon J Morgan, Jun Chen, Robert MI Kapsa, Gordon G Wallace, Antonio G Paolini
Publication date
2012/12/12
Journal
Journal of neural engineering
Volume
10
Issue
1
Pages
016004
Publisher
IOP Publishing
Description
Objective
Neural recording electrodes suffer from poor signal to noise ratio, charge density, biostability and biocompatibility. This paper investigates the ability of conducting polymer coated electrodes to record acute neural response in a systematic manner, allowing in depth comparison of electrochemical and electrophysiological response. Approach
Polypyrrole (Ppy) and poly-3, 4-ethylenedioxythiophene (PEDOT) doped with sulphate (SO 4) or para-toluene sulfonate (pTS) were used to coat iridium neural recording electrodes. Detailed electrochemical and electrophysiological investigations were undertaken to compare the effect of these materials on acute in vivo recording. Main results
A range of charge density and impedance responses were seen with each respectively doped conducting polymer. All coatings produced greater charge density than uncoated electrodes, while PEDOT-pTS, PEDOT-SO 4 and …Scholar articles
AR Harris, SJ Morgan, J Chen, RMI Kapsa, GG Wallace… - Journal of neural engineering, 2012