Biosensor: Concept, Classification and Applications

Journal article in the Excel Journal of Engineering Technology and Management Science, volume one issue six, December 2014 to January 2015, by Ayesha and Irshad Siddiqui of the Department of Biosciences: the definition of a biosensor and its three functional elements of bioreceptor, transducer and signal processor, the classification by transduction principle into electrochemical, optical, piezoelectric, thermal and magnetic devices, the generations of biosensor from first-generation enzyme electrodes onwards, and the applications in clinical diagnosis, food analysis and environmental monitoring.