What is a biosensor

Sensors with immobilized biological components or organisms as sensors are called biosensors. Biosensors do not specifically refer to sensors used in the field of biotechnology. Its applications also include environmental monitoring, health care, and food inspection. Biosensors mainly have the following three classification naming methods:

1. According to biosensors, molecular recognition elements, ie, sensitive elements, can be classified into five categories: enzyme sensors, microbial sensors, organ sensors, tis-ssensors, and immunosensors. Obviously, the sensitive materials used are, in order, enzymes, micro-organisms, organelles, animal and plant tissues, antigens and antibodies.

2. According to a biosensor transducer or a signal converter, a bioelectric sensor, a semiconductor biosensor, an optical biosensor, a calorimetric biosensor, and a piezoelectric biosensor are classified. Etc. The transducers are electrochemical electrodes, semiconductors, photoelectric converters, thermistors, piezoelectric crystals, etc. in this order.

3. A bio-affinity biosensor is classified based on the interaction between the measured target and the molecular recognition element.

The actual interaction between the three classification methods is used.