Performance of urea-sensitive enzyme field effect transistors: influence of the storage conditions.

Abstract

Urea-sensitive enzyme field effect transistors (ENFETs) were prepared by cross-linking urease with bovine serum albumin in saturated glutaraldehyde vapor on the sensitive surface of a pH-FET. The linear part of the biosensor dynamic range is between 5 x 10(-5) and 10(-3) M of urea. The influence of pH on the sensor response, stability and reproducibility of… (More)

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