GBF Gesellschaft für Biotechnologische Forschung mbH, Braunschweig
Abstract
Thickfilm transducers are reliable devices for the construction of biosensors. Polymer mixtures
are described which can be used in screen printing processes and allow to immobilize biopolymers,e.g.,
enzymes, effectively. Potentiometric membranes with improved adhesionto the thickfilm electrodes are
presented. Examples from the field of potentiometric (urea, penicillin) and amperometric (glucose,
sucrose, ascorbic acid) enzyme sensors are reported and compared to conventional electrodes. The
application of a 4-channel multisensor for the determination of glucose, sucrose and ascorbic acid is
described
