A Conductive Crosslinked Graphene/Cytochrome C Networks for The Electrochemical and Biosensing Study

The direct electrochemistry of catalytically active cytochrome C (Cyt c) adsorbed together with a 3-dimensional network of chemically synthesized graphene on glassy carbon electrode has been readily obtained in aqueous phosphate buffer. Direct electrical communication between the redox center of Cyt...

Full description

Bibliographic Details
Main Authors:	A. K. M., Kafi, M. M., Yusoff, Choucair, Mohammad, Crossley, Maxwell J.
Format:	Article
Language:	English
Published:	Springer 2017
Subjects:	Q Science (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/18221/ http://umpir.ump.edu.my/id/eprint/18221/ http://umpir.ump.edu.my/id/eprint/18221/ http://umpir.ump.edu.my/id/eprint/18221/1/fist-2017-kafi-%20A%20Conductive%20Crosslinked%20Graphene1.pdf

id	ump-18221
recordtype	eprints
spelling	ump-182212018-07-26T03:20:24Z http://umpir.ump.edu.my/id/eprint/18221/ A Conductive Crosslinked Graphene/Cytochrome C Networks for The Electrochemical and Biosensing Study A. K. M., Kafi M. M., Yusoff Choucair, Mohammad Crossley, Maxwell J. Q Science (General) The direct electrochemistry of catalytically active cytochrome C (Cyt c) adsorbed together with a 3-dimensional network of chemically synthesized graphene on glassy carbon electrode has been readily obtained in aqueous phosphate buffer. Direct electrical communication between the redox center of Cyt c and the modified graphene-based electrode was established. The modified electrode was employed as a high-performance hydrogen peroxide (H2O2) biosensor. The Cyt c present in modified electrode exhibited a pair of quasi-reversible redox peaks with a midpoint potential of −0.380 and −0.2 V, cathodic and anodic, respectively. Investigations into the electrocatalytic activity of the modified electrode upon hydrogen peroxide exposure revealed a rapid amperometric response (5 s). Under optimized conditions, the linear range of response to H2O2 concentration ranged from 5 × 10−7 to 2 × 10−4 M with a detection limit of 2 × 10−7 M at a signal-to-noise ratio of 3. The stability, reproducibility, and selectivity of the proposed biosensor are discussed in relation to the morphology and composition of the modified electrode. Springer 2017 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/18221/1/fist-2017-kafi-%20A%20Conductive%20Crosslinked%20Graphene1.pdf A. K. M., Kafi and M. M., Yusoff and Choucair, Mohammad and Crossley, Maxwell J. (2017) A Conductive Crosslinked Graphene/Cytochrome C Networks for The Electrochemical and Biosensing Study. Journal of Solid State Electrochemistry, 21 (10). pp. 2761-2767. ISSN 1433-0768 https://doi.org/10.1007/s10008-017-3598-z doi: 10.1007/s10008-017-3598-z
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	Q Science (General)
spellingShingle	Q Science (General) A. K. M., Kafi M. M., Yusoff Choucair, Mohammad Crossley, Maxwell J. A Conductive Crosslinked Graphene/Cytochrome C Networks for The Electrochemical and Biosensing Study
description	The direct electrochemistry of catalytically active cytochrome C (Cyt c) adsorbed together with a 3-dimensional network of chemically synthesized graphene on glassy carbon electrode has been readily obtained in aqueous phosphate buffer. Direct electrical communication between the redox center of Cyt c and the modified graphene-based electrode was established. The modified electrode was employed as a high-performance hydrogen peroxide (H2O2) biosensor. The Cyt c present in modified electrode exhibited a pair of quasi-reversible redox peaks with a midpoint potential of −0.380 and −0.2 V, cathodic and anodic, respectively. Investigations into the electrocatalytic activity of the modified electrode upon hydrogen peroxide exposure revealed a rapid amperometric response (5 s). Under optimized conditions, the linear range of response to H2O2 concentration ranged from 5 × 10−7 to 2 × 10−4 M with a detection limit of 2 × 10−7 M at a signal-to-noise ratio of 3. The stability, reproducibility, and selectivity of the proposed biosensor are discussed in relation to the morphology and composition of the modified electrode.
format	Article
author	A. K. M., Kafi M. M., Yusoff Choucair, Mohammad Crossley, Maxwell J.
author_facet	A. K. M., Kafi M. M., Yusoff Choucair, Mohammad Crossley, Maxwell J.
author_sort	A. K. M., Kafi
title	A Conductive Crosslinked Graphene/Cytochrome C Networks for The Electrochemical and Biosensing Study
title_short	A Conductive Crosslinked Graphene/Cytochrome C Networks for The Electrochemical and Biosensing Study
title_full	A Conductive Crosslinked Graphene/Cytochrome C Networks for The Electrochemical and Biosensing Study
title_fullStr	A Conductive Crosslinked Graphene/Cytochrome C Networks for The Electrochemical and Biosensing Study
title_full_unstemmed	A Conductive Crosslinked Graphene/Cytochrome C Networks for The Electrochemical and Biosensing Study
title_sort	conductive crosslinked graphene/cytochrome c networks for the electrochemical and biosensing study
publisher	Springer
publishDate	2017
url	http://umpir.ump.edu.my/id/eprint/18221/ http://umpir.ump.edu.my/id/eprint/18221/ http://umpir.ump.edu.my/id/eprint/18221/ http://umpir.ump.edu.my/id/eprint/18221/1/fist-2017-kafi-%20A%20Conductive%20Crosslinked%20Graphene1.pdf
first_indexed	2023-09-18T22:25:41Z
last_indexed	2023-09-18T22:25:41Z
_version_	1777415950889385984

A Conductive Crosslinked Graphene/Cytochrome C Networks for The Electrochemical and Biosensing Study

Similar Items