Graphene Oxide-Chitosan Based Flexible Biosensor

Kafi, M. A., Paul, A. and Dahiya, R. (2017) Graphene Oxide-Chitosan Based Flexible Biosensor. In: IEEE Sensors 2017, Glasgow, UK, 30 Oct - 01 Nov 2017, ISBN 9781509010127 (doi:10.1109/ICSENS.2017.8234441)

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Abstract

The paper presents flexible graphene oxide (GO)-Chitosan composite based biosensor for electrochemical detection of dopamine (DA). Electrochemical redox based detection tool for analytes has gained popularity due to their high specificity, sensitivity and label free technique. The GO-Chitosan based electrochemical electrodes presented here for three-electrode voltammetry have Ag/AgCl and Platinum based reference and counter electrode, respectively. The cyclic voltammetry (CV) of DA with as prepared electrode show quasi-reversible behaviour with characteristic cathodic peak (7pc) at +200mV and anodic peak (7pa) at -400mV. The voltammogram showed stability against repetitive scan cycles while the peak current showed increase with scan rates (100-200mV/s). The sensors show steady state peak enhancement (6.05-134.05pA) with DA concentration range of 0-100pM. The fabricated electrode is suitable for measuring DA with high sensitivity. The biodegradability of the prepared electrode is suitable for eco-friendly and disposable applications, which aligns with the green technology.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Kafi, Md Abdul and Dahiya, Professor Ravinder and Paul, Dr Ambarish
Authors: Kafi, M. A., Paul, A., and Dahiya, R.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
ISBN:9781509010127
Copyright Holders:Copyright © 2017 IEEE
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher
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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
718761BENDRavinder DahiyaEuropean Commission (EC)704807ENG - ENGINEERING ELECTRONICS & NANO ENG
663861Engineering Fellowships for Growth: Printed Tactile SKINRavinder DahiyaEngineering and Physical Sciences Research Council (EPSRC)EP/M002527/1ENG - ENGINEERING ELECTRONICS & NANO ENG