Biosensors, which is one of the most popular field of bioelectronics, have been widely researched and developed as a tool for medical and environmental monitoring. The biosensors are designed to produce a digital electronic signal which is proportional to the concentration of a specific bio/chemical or a set of bio/chemicals in the presence of a number of interfering species. The typical architecture of biosensors is a combination of biological components and transducers as shown schematically. The biological substances are generally chosen from among enzymes, antibodies, receptors, tissues and microorganisms because of their excellent selective functionality for target substances. The transducers are electrodes, photoncounters, thermistors, quartz crystal microbalances, semiconductor devices and surface plasmon resonance devices, which are electronic or photonic devices. We study those bioelectronics.
Turner, A.F.P., Karube, I., Wilson, G.S., 1987. Biosensors Fundamentals and Applications, Oxford Science Publications, Oxford.