Exploring the antimicrobial properties of dark-operating ceramic-based nanocomposite materials for the disinfection of indoor air.

As people spend more and more time inside, the quality of indoor air becomes crucial matter. This study explores the germicidal potential of two dark-operating germicidal composite materials designed to be applied for the indoor air disinfection under flow conditions. The first material, MnO2/AlPO4/γ-Al2O3 beads, is a donor-acceptor interactive composite capable of creating hydroxyl radicals HO∙.

[Composite fluorine polymer-containing sorbents for isolation and purification of biopolymers].

Composite fluoropolymer-containing sorbents based on porous silicas were synthesized for the isolation and purification of biopolymers under nondenaturing conditions. Examples of the application of these sorbents in the separation of various mixtures of peptides and proteins and purification of nucleic acids from various sources (plasmid DNA and DNA from nucleated human blood cells) using the cartridge, column, and batch (sorption in a stirred volume) methods are presented. It was shown that the sorbents can be used in laboratory practice because they are selective to nucleic acids (DNA and RNA) and proteins.

[Clinical trial of ventax (long-acting theophylline) in chronic obstructive bronchitis].

Clinical evidence obtained on efficacy of a new long-acting theophylline ventax in chronic obstructive bronchitis demonstrates that it has advantages over theophylline, produces positive changes in the patients' external respiration, dyspnea severity, auscultatory parameters, subjective response, is well tolerated and highly effective against chronic obstructive bronchitis. Side effects of ventax are outlined.

[The hyper- and hypoalgesic effects of human and animal blood serum proteins].

The protein fractions precipitated by ammonium sulfate from the bovine, human and Greenland's seal blood sera enhanced the pain sensitivity of mice, rats and rabbits. The proteins fraction of the seal blood serum was divided in six subfractions by ion-exchange chromatography. One of these subfractions clearly showed hyperalgesic properties, while the others had an opposite effect.

[The effect of blood serum proteins from the seal on the analgetic action of narcotic analgesics].

The protein fraction isolated from blood of seal, Phoca groenlandica, has been found to produce hyperalgesic effect on rats exposed to thermic or electrocutaneous nociceptive stimulation, but fail to affect writhes provoked by intraperitoneal injection of acetic acid solution on mice. When combined with morphine, the fraction lowered completely its narcotic analgetic action in the above mentioned tests. On the contrary, these same proteins combined with promedol or fentanil enhanced and prolonged analgetic effect of the latter.

[Effects of peptide-protein substances from the hydrobiontics in vestibulo-autonomic disorders in cats].

We demonstrated earlier, that undecapeptide of hydra vulgaris possesses vestibulo-protective activities in cats. We also investigated potential of vestibulo-protective properties of other peptide-protein substances from hydrobiontics. The work was done on 18 cats.

Cyclodepsipeptides as chemical tools for studying ionic transport through membranes.

This paper reports a study of the chemistry of valinomycin, enniatins and related membrane-active depsipeptides that increase alkali metal ion permeability of model and biological membranes. The antimicrobial activity of these compounds and their effect on membranes has been correlated with their cation-complexing ability. The complexing reaction has been studied by spectropolarimetric and conductimetric methods.