Bivalent copper oligopyrocatecholate as a novel heterogeneous catalyst for the oxidative degradation of mercaptan in caustic solution: Synthesis, characterization, and kinetic study.

A novel catalyst based on bivalent copper oligopyrocatecholate was first successfully synthesized and dispersed in a polymer matrix for oxidative degradation of mercaptan in aqueous caustic solution. X-ray diffraction analysis has demonstrated that the synthesized catalyst was a crystalline phase with a minimum amorphous component. Mechanism analysis and kinetic experiments were conducted to investigate the kinetic mechanism of the reaction of isopropyl mercaptan oxidation catalyzed by copper oligopyrocatecholate dispersed in a polymer matrix.

[Wound-healing properties of solid immunobiological medicinal forms for local application].

The results of experiments on rats showed a high healing potential of three collagen-based coating materials containing a combination of biologically active substances including human leukocyte interferon, alfalfa extract, and eubiotic bactisporin. The application of new materials significantly accelerated the healing of model wounds.

[The immunotropic activity of erakond].

The effect of eracond on some parameters of immunity and allergic reactions was studied in experiments on mice and guinea pigs. The drug was found to possess an immunomodulating effect.

[Search for the systems of DNA host specificity in Salmonella typhi].

Seventeen pure lines of S. typhi bacteriophages have been obtained from mother races O and Vi; of these, three were used to study 152 S. typhi strains with a view of detecting their DNA host specificity systems.