Design and Development of Piezoelectric Biosensor for Enhanced Pathogen Detection

Abstract

A biosensor is a device which transforms a biological response into an electrical signal. It uses a bioreceptor which consists of a biologically sensitive material to detect biological species. This bioreceptor acts as the recognition element and is attached to a transducer. The transducer will convert the response to an electrical signal. This signal is proportional to the concentration of the target biological substance. The biologically sensitive material can include enzyme, molecules, lectins, receptors, antibodies etc. This biosensor uses the reaction between antibody and antigen hence can also be called as immunosensors. The biosensor reacts to this antigen antibody binding. The transducer converts this product into a conventional electrical signal. The electrical signal can be processed with amplification and further displayed.