Jianting He
As a new type of sensor, biosensor is a biomolecule sensitive element, which converts chemical signal, thermal signal and optical signal into electrical signal or generates electrical signal directly for amplification and output, so as to obtain the detection result. Biosensor is a new and high technology which is permeated by biology, chemistry, physics, medicine and electronic technology. Because of its good selectivity, high sensitivity, high analysis speed, low cost, on-line continuous monitoring in complex system, especially its high automation, miniaturization and integration, it has been developed rapidly in recent decades. It has wide application prospects in various sectors of the national economy, such as food, pharmaceutical, chemical, clinical testing, biomedical, environmental monitoring, etc. Especially, the combination of molecular biology with microelectronics, optoelectronics, microfabrication and nanotechnology is changing the face of traditional medicine, zoology, phytology and environmental science. This paper explains the basic principle of biosensor, the current mainstream classification, the current mainstream research results, the application in various fields and the possible development trend of biosensor in the future.
Biosensor; Electrochemical; Information Detection; Bioengineering