Recently, a group of physicists and biologists led by Viktor Timoshenko, a professor at the Moscow State Institute of Nuclear Energy Research, Moscow, used silicon nanoparticles to identify and kill tumors with the help of ultrasound, but did not damage normal tissues. Published on Nanotechnology.
"We have found a new way to use ultrasound to kill cancer cells without causing massive cell damage, but it can destroy the organelles inside the cells through nanoparticles," said Andrey Sviridov of the Moscow State University. He said that covering a layer of polymer on silicon nanoparticles does not affect its acoustic properties, but it will produce better therapeutic effects.
Recently, physicists, chemists, and nanoscientists are developing new types of surgery or treatments that do not damage normal tissues and organs. For example, researchers have developed nanoparticles that can be introduced into tumor tissue and laser-heated to kill cancer cells. They can destroy cancer cells, but do not affect normal cells. They can produce effects similar to gene therapy and special drugs, preventing tumor blood vessel growth and Starving cancer cells.
Sviridov and colleagues have also created special silicon nanoparticles that can be used to study tumors and use ultrasound to kill tumors.
The main problem with this method is that the ultrasound and nanoparticles are not selective, so they not only kill cancer cells, but also kill normal cells. At the same time, the nanoparticles will degrade rapidly in the cells.
The generic name of VTM Virus Sampling Tube is a single-use virus sampling tube, which is generally used for the detection and sampling of infectious pathogenic microorganisms in disease control departments and clinical departments. It is suitable for detection and sampling of influenza viruses (including general influenza, highly pathogenic viruses, H1N1 influenza virus, etc.), hand, foot and mouth virus, new coronavirus, measles and rubella and other types of viruses. VTM virus sampling tube can also be used for detection and sampling of Mycoplasma, Chlamydia and Ureaplasma urealyticum.
The virus and related samples in the VTM virus sampling tube should be stored and transported within 48 hours in a refrigerated state (2-8°C). Viruses and related samples can be stored for a long time in -80℃ environment or liquid nitrogen environment. The virus can maintain the activity of the virus in a lower temperature range, reduce the speed of virus decomposition, and improve the positive rate of virus isolation.
The VTM virus sampling tube is generally equipped with a disposable flocking swab. From the appearance point of view, the flocking swab is white and soft. Using this soft brush during the sampling process will make the user feel no foreign body, and it is suitable for different Partial sampling person. Moreover, the flocking swab is designed with a breaking point that conforms to the length of the sampling tube and the natural orifice of the human body, which is not only convenient for sampling but also convenient for transportation of the specimen.
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