Nanosensors can diagnose cancer early

The main applications of nanosensors include medical care, military, industrial control and robotics, networking and communications, and environmental monitoring. With the maturity of related technologies, the strong advantages of nanosensors in the field of national security inspections have gradually emerged. It is believed that in the near future, nanosensors will be used in new generations of military uniforms and equipment and will be used to detect anthrax and other dangerous gases.

The development of nanotechnology today not only provides good sensitive materials for sensors, such as nanoparticles, nanotubes, nanowires, nano films, etc., but also provides many novel ideas and methods for sensor fabrication, such as key technologies in nanotechnology. STM, research object to the nano-scale transition of MEMS technology. Compared with traditional sensors, nanosensors have greatly improved performance such as reduced size and improved accuracy. More importantly, they use nanotechnology to fabricate sensors that are on the atomic scale, which greatly enriches the theory of sensors and promotes the development of sensors. The level of production has broadened the application of sensors.

Instrument World World has learned that in addition to nano-sensors, nano-chemistry and bio-sensors, and nano-gas sensors, there are many other types of nano-sensors. Such as: resistance strain type nano pressure sensor, this resistance strain type nano film pressure sensor, measuring accuracy and high sensitivity, small size, light weight, easy installation and maintenance, stable and reliable measurement of pressure parameters; use of some giant nano materials Magneto-resistive effects have been developed for various nano-magnetic sensors, and nano-fiber biosensors developed on the basis of fiber-optic sensors not only have the advantages of fiber-optic sensors, but also because the size of such sensors depends only on the size of the probes. The size of the micrometric sensor is greatly reduced, the response time is greatly shortened, and the minimally invasive real-time dynamic measurement achieved by the measurement requirements is satisfied. Sensors made with nanotechnology can be used for the early diagnosis, monitoring, and treatment of diseases, making early diagnosis of various types of cancer a manifestation. At present, American scientists have already achieved early diagnosis of prostate cancer, rectal cancer, and other cancers in a laboratory environment. The nanometer sensor has high sensitivity. When the blood is detected, when a certain total cancer cell antibody preset in the sensor encounters the corresponding antigen, the current in the sensor will change, and the current can be used to judge the cancer cells in the blood. Kind and concentration. Experts predict that in the future there may be a variety of nanosensors integrated into the human body for early detection of various diseases.

In addition to diagnosing early cancers, the use of nanosensors in tuberculosis has greatly improved the patient's condition in advance of the current conventional examination. Tuberculosis disease is an infectious disease. If the disease is not treated promptly, and the patient suffers from hemoptysis and empty lungs, it indicates that the condition is very serious and the treatment is very difficult. And using the previous aging test method, the results of the inspection may be a big mistake. This may also bring psychological pressure to the patient. Recently, a well-known medical institution with a history of more than 100 years and the London Institute of Hygiene and Tropical Diseases in the United Kingdom have used nanomaterials to successfully develop a new type of nanosensor that can detect whether a person has tuberculosis on the spot. Moreover, the cost of such products is also very low, which is very suitable for use in areas with high incidence of tuberculosis in third world countries.