[Bactericidal and biologically stable coatings for medical implants and instruments].

The experimental research showed the fine-film coating based on hafnium nitride to inhibit the pathogenic microflora and to exert the bactericidal effect by far less versus that of antibiotics; at the same time, the concentration of hafnium ions in the solution is just within the sensitivity limit detectable by the most recent registration methods--it amounts to less than 10(-10) mol/l. Therefore, according to the research results, the use of such coatings based on hafnium nitride is promising in manufacturing the surgical metal implants and medical instruments.