UMP Institutional Repository

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

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)

[img]
Preview
PDF
fist-2017-kafi-Superoxide Radical Biosensor Based1.pdf

Download (50kB) | Preview

Abstract

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.

Item Type: Article
Uncontrolled Keywords: 3D Crosslinked Networks, Cytochrome C, Superoxide, Biosensor
Subjects: Q Science > QD Chemistry
Faculty/Division: Faculty of Industrial Sciences And Technology
Depositing User: Dr. A. K. M. Kafi
Date Deposited: 10 Apr 2017 03:22
Last Modified: 26 Jul 2018 03:23
URI: http://umpir.ump.edu.my/id/eprint/15616
Download Statistic: View Download Statistics

Actions (login required)

View Item View Item