Popescu, Sinziana, Dale, Carl, Keegan, Neil, Ghosh, Biswajit, Kaner, Richard and Hedley, John (2017). Rapid Prototyping of a Low-cost Graphene-based Impedimetric Biosensor. Procedia Technology, 27 , pp. 274-276.
Abstract
This paper presents a preliminary investigation towards rapid prototyping of a low-cost biosensor based on reduced graphene oxide (rGO). The devices are fabricated via a laser scribing process and their functionality is demonstrated by their functionalization and subsequent immobilization of 7% bovine serum albumin (BSA). Non-faradaic electrochemical impedance spectroscopy (EIS) indicated a 33-42% decrease in impedance upon immobilization. An electroless nickel deposition process is demonstrated to enable electrical contacts to the device, with optimized plating conditions (pH, temperature) leading to a rGO-nickel contact resistance of 19 Ω/mm2.
| Publication DOI: | https://doi.org/10.1016/j.protcy.2017.04.116 |
|---|---|
| Divisions: | College of Health & Life Sciences |
| Additional Information: | © 2017 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license. |
| Uncontrolled Keywords: | graphene,reduced graphene oxide,impedimetric biosensor,interdigitated electrode array,electroless nickel deposition |
| Publication ISSN: | 2212-0173 |
| Last Modified: | 29 Oct 2024 13:59 |
| Date Deposited: | 02 Feb 2018 08:07 |
| Full Text Link: |
http://linkingh ... 212017317301172 |
| Related URLs: | PURE Output Type: | Article |
| Published Date: | 2017-07-13 |
| Published Online Date: | 2017-07-13 |
| Accepted Date: | 2017-04-17 |
| Authors: |
Popescu, Sinziana
(
0000-0002-5441-1492)
Dale, Carl Keegan, Neil Ghosh, Biswajit Kaner, Richard Hedley, John |
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