Author(s)

Juncheng He, Jian Li

Corresponding Author

Juncheng He

ABSTRACT

Sensors have received wide attention from scientific researchers since their inception in 1906, and countries worldwide have also invested a lot of human and financial resources in this field. There are more than 1,000 sensor research and production manufacturers in the United States, Europe, and Russia. What's more, according to statistics, the global sensor market exceeded $200 billion last year. The sensor has a history of more than 100 years since its development. During this period, sensors merged with different disciplines, and many different types of sensors were developed—for example, chemical electrode sensors, sensitive film sensors, gas sensors, and optical sensors. In particular, the application of nano-sensors in biomedical domains, which have emerged in recent years, has attracted widespread attention among scientific researchers engaged in sensor research. Although nano-sensors have not been widely used due to their high price and other reasons, their excellent characteristics have been widely recognized by the scientific community. Studies have shown that nanosensors, especially those based on gold nanoparticles, surpass traditional electrochemical sensors in terms of human affinity, measurement accuracy, and feedback speed. This review article aims to summarize the results of sensor development and give a macroscopic reference to the development of sensors. The development history of the sensor will be reviewed in chronological order. In addition, the application of nano-sensors in the field of biomedicine will be introduced in detail. CCS CONCEPTS •Applied computing~Life and medical science.

KEYWORDS

Chemical sensor, nanotechnology, medical technology