P1.3 - Immune-Enzymatig Biosensors Based on the Oxide Cerium Isfets: Some Physical and Functional Characteristics at the Determination of Simazine and T2-Mycotoxin

N. F. Starodub & A. N. Shmiryeva
Input and output characteristics of the IsFET’s with the Si3N4 and CeOх dielectrics shown the increasing of the pH-sensitivity in the respect of the drain current in case of the CeOх. It is due to high density of the surface sensitive centers (up to 1020 м -2), large level of the permittivity (ε = 26) and the band-gap energy (3.6 eV) of cerium. All these effects lead to decreasing of the current losses through the...