Sensor Used in E-nose - The Electronic Nose Artificial Olfaction Technology - page 147

Fig. 6.4 Bio component and transducers in a biosensor system [ 13 ]

components that detect, translate, and modify an original ''indication from being''
into a useful signal.
Both components of the biosensor, namely, biorecognition element (referred as
a receptor) and transduction platform (referred as a transducer) play an important
role in the construction of a sensitive and specific device for the analyte of interest
(referred as a target).
There are numerous ways biosensors are classified:

1. Direct sensor and indirect sensor.
2. Classification based on the detection method.
3. Classification based on the method of transduction.
4. Classification based on the mode of delivery.