Biopolymers and cell. 1998; 14 (3): 242 - 245

Influence of additional positively charged polymer membranes on the analytical characteristics of conductometric glucose biosensors

Vatentina N. Arkhipova

Tka working characteristics of conductometric glucose enzyme-based sensors with and without additional positively charged polymer membrane have been compared. The use of this additional membrane resulted in substantial extention of the sensor dynamic range and increasing of Us sensitivity. The influence of buffer capacity and ionic strength on the biosensor response was examined for the sensors with and without additional membrane. Also operational stability of created sensors and reproducibility of measurements were studied.