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    Home > Coatings News > Paints and Coatings Market > The new polymer coating significantly enhances the antibacterial capabilities of medical devices

    The new polymer coating significantly enhances the antibacterial capabilities of medical devices

    • Last Update: 2021-01-06
    • Source: Internet
    • Author: User
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    The inside surface of some medical devices that are not easy to clean is contaminated with drug-resistant bacteria, which can put patients at risk of secondary infection. To deal with the problem more effectively, Russian researchers have crafted a sterilization polymer coating for medical devices with less than 1% bacterial residue on the surface of ordinary plastics.
    Lomonosov, an associate researcher at Moscow State University, and others report in the new issue of the journal Materials Science and Engineering that certain drug-resistant pathogens attach to the surface of medical catheters and plastic surgery implants and wrap themselves around polysaccharides and proteins to form bacterial biofilms. If these devices are not thoroughly disinfected, these bacteria can cause complications and secondary infections in patients during the recovery period.
    Besonov said that the hospital commonly used two kinds of sterilizing disinfectants - Miramis stop and chlorhexane can be both sterilized, but also make it difficult for bacteria to adhere to the biofilm, but these two preparations are not suitable for making contact with the patient's body fluids sterilization coating. After several experiments, Russian researchers have built a polymer based on polyethylene subamines that can be sterilized like Miramis and chloroform, and not dissolved in body fluids.
    in a comparative experiment, the researchers transplanted green pus and Staphylococcus acuity, which can cause infection and inflammation, into the new sterilization polymer coating and the surface of general medical plastics, respectively. Tests conducted over time have shown that pathogen residues on new polymer-coated surfaces are only thousands to one millionth of the number of bacteria on common medical plastic surfaces.
    is toxic to pathogens, but harmless to humans, and the polymer does not absorb water, making it difficult for bacteria to fit on their surfaces, Besonov explained.
    Russian researchers believe that after further improving the relevant manufacturing process, it is expected that the bactericidal polymer will be used to create plastic implants, medical devices and operating table internal and external surface coating. In addition, try using it to make purification filters to remove cyanobacteria and other algae that are toxic to humans and animals in the water.
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