Issue 10, 2011
From the journal:

Analyst

Screen printed graphite macroelectrodes for the direct electron transfer of cytochrome c

Maria Gómez-Mingot,a   Jesús Iniesta,a   Vicente Montiel,a   Rashid O. Kadarab  and  Craig E. Banks*b  

* Corresponding authors

a Physical Chemistry Department and Institute of Electrochemistry, University of Alicante, San Vicente del Raspeig, Alicante, Spain

b Faculty of Science and Engineering, School of Science and the Environment, Division of Chemistry and Environmental Science, Manchester Metropolitan University, Chester Street, Manchester, Lancs, UK
E-mail: c.banks@mmu.ac.uk
Fax: +44(0)161 247 6831
Tel: +44(0)1612471196

Abstract

We report the direct electrochemistry of cytochrome c at screen printed graphite electrodes which exhibits quasi-reversible voltammetric responses without the need for any chemical or electrochemical pre-treatment, use of mediators or nanomaterials. Through voltammetric studies and X-ray photoelectron spectroscopy (XPS) it is shown that carbonyl and carboxylic surface oxygenated species likely residing at edge plane like- sites/defects of the graphite comprising the screen printed electrodes are responsible for the favourable interaction of the cytochrome c with that of the screen printed electrochemical sensing platform.

Graphical abstract: Screen printed graphite macroelectrodes for the direct electron transfer of cytochrome c

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Article information

DOI
https://doi.org/10.1039/C0AN00712A
Article type
Paper
Submitted
11 Sep 2010
Accepted
16 Mar 2011
First published
01 Apr 2011

Analyst, 2011,136, 2146-2150

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Screen printed graphite macroelectrodes for the direct electron transfer of cytochrome c

M. Gómez-Mingot, J. Iniesta, V. Montiel, R. O. Kadara and C. E. Banks, Analyst, 2011, 136, 2146 DOI: 10.1039/C0AN00712A

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