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MP36:Immune Biosensor based on the Oxide Cerium ISFETs for the Determination of Mycotoxin Level in Environmental Objects

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Nickolaj F. Starodub, Dr.Sci., Prof.
Nat. Univ. of Life and Environmen. Sci.
Kiev, Ukraine.

O.M. Brezvin
State Sci.-Res. Control Inst. Vet. Preparat. and Feed Additives of Ukraine

Introduction

The problem of dispersion of mycotoxins among environmental objects is very important due to their external toxicity, especially when it concerns T2-mycotoxin. Biosensors are the most appropriate instrumental analytical devices which may fulfill all practical demands. Among them a lot of different types exist and it is necessary to chose the most sensitive, stable and simple, which may provide analysis in an online regime and in field conditions. Immune biosensors based on the ISFETs may respond to these demands. Unfortunately, the stability and sensitivity of the SiO2-Si3N4-layer in the commonly used ISFETs is not sufficient and to overcome this shortcoming we created a semiconductor structure with a SiO2-CeO2-layer. Efficiency was examined at the investigation of the characteristics of the immune biosensor intended for control of T2-mycotoxin in environmental objects.

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