Nano Materials

Micro Material

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Application of nano-diamond in sterilization

At present, the application fields of nano-diamonds are mainly distributed in aerospace manufacturing, precision machinery, optical instruments, automobile manufacturing and other industries. Specifically include:
1. The most ideal polish for an atomized polished surface. It is especially used for finishing and polishing of various hard materials such as fine ceramics, integrated circuit chips, various gemstones, ferrite heads, quartz plates, super-hard alloys, optical lenses, etc.
2. High hardness and high wear resistance plating and electroless plating;
3. High hardness and high wear resistance metal composite materials;
4. Low friction, low wear, high load, long life lubrication systems (such as lubrication of various cylinders) and super lubricants.
5. PTFE-based composite material with high wear resistance and good lubricity;
6. It is an irreplaceable material for the production of polycrystalline diamond and diamond films.
      However, the University of Bremen, Germany, recently reported that an international research team involved in the school's researchers found that nanodiamonds can effectively kill bacteria like metallic silver and copper. Nanodiamonds are about 5 nanometers in diameter (1 nanometer equals 1 millionth of a billion meters), about two-hundredths of bacteria, and can be produced by explosion of carbon-containing compounds in high-pressure vessels. This gray-brown diamond powder forms different chemical groups on the surface after receiving different heat treatments. The researchers found that some nanodiamonds have strong bactericidal properties that kill bacteria in a short period of time, and a specific oxygen-containing group called an acid anhydride on the surface of nanodiamonds seems to have its bactericidal properties. Researchers say experiments have shown that nanodiamonds with bactericidal properties can be used to produce surface coatings, bactericides, and the like.
      The research was published in the professional journal ACS Nano. Researcher Yulia Wellin believes that the discovery of a new type of antibacterial material can be described as a "breakthrough" when many bacteria are resistant to antibiotics, which is expected to lead to a new diamond application market.