In general, the electrochemical biosensor is based on the reaction of enzymatic catalysis, which consumes or produces electrons. These types of enzymes are called redox enzymes. The substrate of this biosensor usually contains three electrodes, such as a counter, reference and working type.
Electrochemical biosensors are divided into 4 different classes:
Ampermetric Biosensors
Potentiometric Biosensors
Empedance Biosensors
Voltmetric Biosensors
