Classification of biosensors based on transducers

The transducer is a component ofbiosensors, which has an important role in the signal detection process. A transducer is the device that converts biorecognition signal events into detectable signals. The detectable signals can be electrochemical (potentiometry, conductometry, impedimetry, amperometry, voltammetry), optical (colorimetric, fluorescence, luminescence, interferometry), calorimetric (thermistor), mass change (piezoelectric/acoustic 

Biosensors can be classified based on the transduction methods that they employ. Transduction can be accomphshed through a large variety of methods. Most forms can be classified in one of three main classes  

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