Superoxide Radical Biosensor Based on a 3D Enzyme/Carbon Nanotube Conductive Networks

We report on a novel 3-dimensional (3D) network of crosslinked Cytochrome C/Carbon Nanotube (CytC/CNT) on a thiol-modified gold surface which can establish direct electrical communication between the redox center of Cytochrome C and the electrode. Cyclic voltammograms (CVs) results showed a pair of...

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Main Authors:	A. K. M., Kafi, N. S., Azmi, M. M., Yusoff, Crossley, Maxwell J.
Format:	Article
Language:	English
Published:	American Scientific Publishers 2017
Subjects:	QD Chemistry
Online Access:	http://umpir.ump.edu.my/id/eprint/15616/ http://umpir.ump.edu.my/id/eprint/15616/ http://umpir.ump.edu.my/id/eprint/15616/ http://umpir.ump.edu.my/id/eprint/15616/1/fist-2017-kafi-Superoxide%20Radical%20Biosensor%20Based1.pdf

id	ump-15616
recordtype	eprints
spelling	ump-156162018-07-26T03:23:49Z http://umpir.ump.edu.my/id/eprint/15616/ Superoxide Radical Biosensor Based on a 3D Enzyme/Carbon Nanotube Conductive Networks A. K. M., Kafi N. S., Azmi M. M., Yusoff Crossley, Maxwell J. QD Chemistry We report on a novel 3-dimensional (3D) network of crosslinked Cytochrome C/Carbon Nanotube (CytC/CNT) on a thiol-modified gold surface which can establish direct electrical communication between the redox center of Cytochrome C and the electrode. Cyclic voltammograms (CVs) results showed a pair of well defined redox peaks for Cytochrome C, located at about −0.03 and +0.06 V, cathodic and anodic respectively. Additionally, the formal potential E0 of adsorbed Cyt c was found to be 15 mV, a value close to that of native Cyt c. Based on 3D Cytochrome c and carbon nanotube network, a sensitive superoxide radical biosensor has been proposed. The biosensor showed high sensitivity and lower detection limit of 0.3 �M of superoxide. American Scientific Publishers 2017 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/15616/1/fist-2017-kafi-Superoxide%20Radical%20Biosensor%20Based1.pdf A. K. M., Kafi and N. S., Azmi and M. M., Yusoff and Crossley, Maxwell J. (2017) Superoxide Radical Biosensor Based on a 3D Enzyme/Carbon Nanotube Conductive Networks. Journal of Nanoscience and Nanotechnology, 17 (8). pp. 5896-5899. ISSN 1533-4880 (Print); 1533-4899 (Online) http://www.ingentaconnect.com/content/asp/jnn/2017/00000017/00000008/art00128 doi: 10.1166/jnn.2017.13860
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	QD Chemistry
spellingShingle	QD Chemistry A. K. M., Kafi N. S., Azmi M. M., Yusoff Crossley, Maxwell J. Superoxide Radical Biosensor Based on a 3D Enzyme/Carbon Nanotube Conductive Networks
description	We report on a novel 3-dimensional (3D) network of crosslinked Cytochrome C/Carbon Nanotube (CytC/CNT) on a thiol-modified gold surface which can establish direct electrical communication between the redox center of Cytochrome C and the electrode. Cyclic voltammograms (CVs) results showed a pair of well defined redox peaks for Cytochrome C, located at about −0.03 and +0.06 V, cathodic and anodic respectively. Additionally, the formal potential E0 of adsorbed Cyt c was found to be 15 mV, a value close to that of native Cyt c. Based on 3D Cytochrome c and carbon nanotube network, a sensitive superoxide radical biosensor has been proposed. The biosensor showed high sensitivity and lower detection limit of 0.3 �M of superoxide.
format	Article
author	A. K. M., Kafi N. S., Azmi M. M., Yusoff Crossley, Maxwell J.
author_facet	A. K. M., Kafi N. S., Azmi M. M., Yusoff Crossley, Maxwell J.
author_sort	A. K. M., Kafi
title	Superoxide Radical Biosensor Based on a 3D Enzyme/Carbon Nanotube Conductive Networks
title_short	Superoxide Radical Biosensor Based on a 3D Enzyme/Carbon Nanotube Conductive Networks
title_full	Superoxide Radical Biosensor Based on a 3D Enzyme/Carbon Nanotube Conductive Networks
title_fullStr	Superoxide Radical Biosensor Based on a 3D Enzyme/Carbon Nanotube Conductive Networks
title_full_unstemmed	Superoxide Radical Biosensor Based on a 3D Enzyme/Carbon Nanotube Conductive Networks
title_sort	superoxide radical biosensor based on a 3d enzyme/carbon nanotube conductive networks
publisher	American Scientific Publishers
publishDate	2017
url	http://umpir.ump.edu.my/id/eprint/15616/ http://umpir.ump.edu.my/id/eprint/15616/ http://umpir.ump.edu.my/id/eprint/15616/ http://umpir.ump.edu.my/id/eprint/15616/1/fist-2017-kafi-Superoxide%20Radical%20Biosensor%20Based1.pdf
first_indexed	2023-09-18T22:20:28Z
last_indexed	2023-09-18T22:20:28Z
_version_	1777415622470139904

Superoxide Radical Biosensor Based on a 3D Enzyme/Carbon Nanotube Conductive Networks

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