Abstract
Biosensors are an investigative contrivance used to find a chemical
substance that combines an organic component with a physicochemical detector.
Various biosensors are used in different fields: electrochemical-based, immune-based,
magnetic-based, thermometric-based, acoustic-based, enzyme-based, optical-based,
DNA-based, and tissue-based, etc. Enzyme-based biosensors are those which use
enzymes or proteins for the recognition of elements and adjoining the inbuilt specificity
of enzymes. Due to their high sensitivity and specificity, these enzymatic biosensors
are frequently used in numerous fields, including the health and biomedical field. This
book chapter will describe the various enzyme-based biosensors, their sensitivity and
specificity, and their significant applications in different fields.