Synthesis and Properties of Polystyrene Composite Material with Hazelnut Shells.

In this study we evaluated the potential use of hazelnut shell powder in the production of a composite material. Polystyrene was used as a polymer matrix. This work presents the results of modifying hazelnut powder particles to create a polystyrene shell on their surfaces.

Synthesis and radiation shielding properties of polyimide/BiO composites.

Radiation shielding composites based on polyimide and BiO were synthesized. Surface and physical-mechanical properties of polyimide/BiO composites were studied. BiO particles were modified by polymethylphenylsiloxane for the uniform distribution of filler in composites.

Platinum acetate blue: synthesis and characterization.

Platinum acetate blue (PAB) of the empirical formula Pt(OOCMe)2.5±0.25, a byproduct in the synthesis of crystalline platinum(II) acetate Pt4(OOCMe)8, is an X-ray amorphous substance containing platinum in the oxidation state between (II) and (III).

[Fermentative hydrolysate of mycelial waste of aminoglycoside antibiotics production as component of culture media used in biosynthesis of tobramycin].

New nutrient media for cultivation of the tobramycin-producing organism were developed. As an additional source of nitrogen the media contain fermentative hydrolysate of the mycelial waste of manufacture of aminoglycoside antibiotics (tobramycin and apramycin). The use of the media provided a 20 to 50% decrease of consumption of soybean meal, an essential food raw material, and design of a low-waste technology for biosynthesis of tobramycin.

[Accelerated method of determining the antiviral activity of interferon inducers in experimental infection].

By the example of trials of two typical interferon inducers: a double-stranded complex of synthetic polyribonucleotides poly (I).poly (C) and polyacrylic acid the use of the proposed rapid method for the determination of the antiviral activity of interferon inducers in an experimental infection of mice with an alphavirus is described. The method permits to perform a statistically treated evaluation of the antiviral effect of a group of preparations within 96 hours.

[Effect of dihydroxyacetone on metabolic parameters and survival of resuspended erythrocytes after storage at 25 degrees and 4 degrees].

Erythrocyte concentrates from CPD blood were resuspended after separating the leukocyte-thrombocyte layer and stored at 4 degrees C and 25 degrees C. The solutions for resuspension differed in the content of substrate, pH, condition of sterilization and the resuspension volume used, 1 or 4 volumes of cell concentrate to 1 volume of resuspension solution. At 4 degrees C, there was no effect of DHA on the the 2.