Investigation of nanostructured oxides: synthesis, structure and properties.

The process of forming three-component nanocrystalline fibers and powders of zirconia, yttria and alumina is studied depending on the component ratio and heat treatment temperature. It has been found that in the investigated system at 500-600 degrees C a nanocrystalline triple solid solution is formed, which exists up to 1200 degrees C. Beyond the above temperature, the triple solid solution decomposes into individual components.

[Antimicrobial activity of carbon fiber fabric modified with a polymer-gentamicin complex].

Modified and unmodified carbon fiber supports were treated with solutions of a polymer-gentamicin complex, possessing high antimicrobial activity and low toxicity. It was found that the antimicrobial activity of modified carbon fiber fabrics depended on the nature of the support and on the immobilization conditions. The highest antimicrobial activity was observed with phosphorus-containing carbon fiber ion exchanger in salt form.