Singh, K. and Basu, T. and Solanki, Pratima R. and Malhotra, Bansi Dhar (2008) Poly (pyrrole-co-N-methyl pyrrole) for application to cholesterol sensor. Journal of Materials Science: Materials in Electronics, 44 (4). pp. 954-961. ISSN 1573-482X

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Abstract

Cholesterol oxidase (ChOx) has been electrochemically entrapped onto p-toluene sulphonate (PTS) doped poly (pyrrole-co-N-methyl pyrrole) (1:1) on indium-tin-oxide (ITO) glass plates. This ChOx-copolymer-PTS/ITO bioelectrode has been characterized using cyclic voltammetry (CV), Fourier transform infrared (FTIR) spectroscopy, UV-visible spectroscopy, scanning electron microscopy (SEM) techniques. The cholesterol bioelectrode shows response time of 19 s, linearity from 50 to 400 mg/dL as a function of cholesterol concentration. It exhibits optimum pH range between 6.5 and 7.5, shelf-life of up to 6 weeks at 4 °C and shows almost undisturbed response in presence of interferents like ascorbic acid, uric acid and glucose.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s SpringerLink.
Subjects:	Materials Science
Divisions:	UNSPECIFIED
Depositing User:	Ms Neetu Chandra
Date Deposited:	24 Sep 2012 11:58
Last Modified:	24 Sep 2012 11:58
URI:	http://npl.csircentral.net/id/eprint/602

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