The working principle of biosensors

BiosensorsIt is achieved by the specific binding of the measured molecule to the sensitive material (i.e. biological sensitive membrane) fixed on the biological receptor, and the occurrence of biochemical reactions, generating signals such as enthalpy change, ion strength change, pH change, color change or mass change. The strength of the generated signals is mathematically related to the specific binding of the measured molecule under certain conditions. These signals are converted into electrical signals by a transducer and amplified for indirect measurement of the measured molecule's weight.

BiosensorsIt is a multidisciplinary high-tech field, and the rapid development of microelectronics, microfabrication, biomaterials, and information technology has laid a solid foundation for the development of biosensors. With the rapid development of related disciplines such as biological science, information science, and materials science,BiosensorsThe application scope of biosensors in food, medicine, environment, and process monitoring is constantly expanding, and people have put forward higher requirements for biosensors. Biosensors will be combined with microprocessors and data communication systems to develop towards large-scale data acquisition and real-time processing, multifunctionality, intelligence, and miniaturization. In order to achieve high-sensitivity, high stability, and low-cost biomass detection, biosensors are developing in the following directions.

(1) Develop new materials and adopt new processes

(2) ResearchBionic Sensor

(3) Research on Multi functional IntegrationIntelligent sensors

(4) Low cost, high sensitivity, high stability, long lifespan, and miniaturized biosensors

There are many types of biochips, and the main ones are: ① gene chips. ② Protein chip. ③ Cell chip. ④ Organize chips.