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PLD grown ZnO–K3[Fe(CN)6] composite thin film for biosensing application

IR@NPL: CSIR-National Physical Laboratory, New Delhi

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Title PLD grown ZnO–K3[Fe(CN)6] composite thin film for biosensing application
 
Creator Saha, Shibu
Arya, Sunil K.
Singh, S. P.
K. , Sreenivas
Malhotra, B. D.
Gupta, Vinay
 
Subject Materials Science
Physics
 
Description Zinc oxide–potassium ferricyanide (ZnO–KFCN) composite film was prepared on ITO coated corning glass using pulsed laser deposition (PLD). The composite film has proved to be a suitable platform for enzyme immobilization. The composite matrix exhibits the advantages of ZnO along with enhanced redox property due to the presence of a mediator in the matrix. Glucose oxidase (GOx) has been chosen as the model enzyme for studying the application of the present matrix to biosensing. The sensing response of the bio-electrode, GOx/ZnO–KFCN/ITO/glass, towards glucose was studied by electrochemical and photometric techniques. The bio-electrode exhibits good linearity and low value of Michaelis–Menten constant. Due to efficient biosensing in a mediator-less system the present bio-electrode should lead to a hand held integrated lab-on-chip device.
 
Publisher Elsevier
 
Date 2010-08
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://npl.csircentral.net/276/1/241.pdf
Saha, Shibu and Arya, Sunil K. and Singh, S. P. and K. , Sreenivas and Malhotra, B. D. and Gupta, Vinay (2010) PLD grown ZnO–K3[Fe(CN)6] composite thin film for biosensing application. Thin Solid Films, 519 (3). pp. 1184-1186. ISSN 0040-6090
 
Relation http://dx.doi.org/10.1016/j.tsf.2010.08.066
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