Scientists from the University of Science and Technology (NUST MISIS) have created an antibacterial coating made of gold nanoparticles and drugs for implants made of a superelastic alloy of titanium, niobium, and zirconium. It accelerates bone tissue growth and reduces the risk of infection in the postoperative period, the university's press service reported.
One of the developers, Anton Konopatsky, explained how the bactericidal coating increases the body's protection after surgery.
We have proposed a new method of antibacterial treatment, which consists of several stages: the formation of a porous layer on the surface of the alloy, the deposition of gold nanoparticles, and the binding of the antibiotic gentamicin to them through an intermediate amino acid — cysteine.
NUST MISIS found that the properties of implants can be improved with a porous coating containing gold particles with a diameter of 3-5 nm with molecules of the antibiotic gentamicin attached to them. These nanostructures destroy microbes and promote bone tissue growth. The tests confirmed the scientists' conclusions.
Earlier www1.ru reported that Russian scientists developed a coating that will unite the implant and human bone.
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