Ansari, Anees A. and Kaushik, Ajeet and Solanki, Pratima R. and Malhotra, B. D. (2009) Nanostructured zinc oxide platform for mycotoxin detection. Bioelectrochemistry , 77 (2). pp. 75-81. ISSN 1878-562X

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Nanostructured zinc oxide (Nano-ZnO) film has been deposited onto indium–tin–oxide (ITO) glass plate for co-immobilization of rabbit-immunoglubin antibodies (r-IgGs) and bovine serum albumin (BSA) for ochratoxin-A (OTA) detection. The results of X-ray diffraction (XRD) studies reveal the formation of Nano-ZnO with average particle size as ~5.0 nm. Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS) techniques have been used to characterize Nano-ZnO/ITO electrode and BSA/r-IgGs/Nano-ZnO/ITO immunoelectrode. Electrochemical impedimetric response of BSA/r-IgGs/Nano-ZnO/ITO immunoelectrode obtained as a function of OTA concentration exhibits linearity as 0.006–0.01 nM/dm3, detection limit of 0.006 nM/dm3, response time as 25 s and sensitivity of 189 Ω/nM/dm3cm− 2 with a regression coefficient of 0.997.

Item Type: Article
Additional Information: Copyright for this article belongs to M/s Elsevier B.V.
Uncontrolled Keywords: Sol–gel; Zinc oxide; Impedimetric immunosensor; Mycotoxin; Ochratoxin-A;
Subjects: Biochemistry & Molecular Biology
Depositing User: Ms Neetu Chandra
Date Deposited: 13 Jun 2012 10:55
Last Modified: 13 Jun 2012 10:55

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