Reza, K. Kamil and Singh, Nawab and Yadav, Surendra K. and Singh, Manish Kumar and Biradar, A. M. (2014) Pearl shaped highly sensitive Mn3O4 nanocomposite interface for biosensor applications. Biosensors and Bioelectronics, 62. 47-51 . ISSN 0956-5663

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Abstract

An electrochemical biosensor based on manganese oxide (Mn3O4) and chitosan (Cn) nanocomposite has been fabricated for fish freshness detection. The electrophoretic deposition of Mn3O4 nanoparticles (15-20 nm) with Cn has changed their morphological arrangement leading to pearl shaped of Mn3O4-Cn nanocomposite on indium tin oxide substrate. Size and morphology of nanocomposite have been confirmed by high resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results of electrochemical response reveal that this improved sensor has widest detection range of xanthine concentration from 1 to 500 mu M and excellent sensitivity of 1.46 mu A mu M-1 cm(-2). The fabricated XOx/Mn3O4-Cn/ITO biosensor can detect as low as 1.31 mu M of xanthine and lower K-m value of 0.018 mu M confirming its superior affinity towards the nanocomposite film.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/S Elsevier.
Uncontrolled Keywords:	Mn3O4 nanocomposite Xanthine oxidase Fish freshness Electrochemical sensor
Subjects:	Biophysics Biotechnology & Applied Microbiology Electrochemistry
Divisions:	UNSPECIFIED
Depositing User:	Dr. Rajpal Walke
Date Deposited:	30 Oct 2015 06:47
Last Modified:	30 Oct 2015 06:47
URI:	http://npl.csircentral.net/id/eprint/1455

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