Previous studies (1,2) have shown the presence of a peroxidase in erythrocytes which catalyzes the breakdown of hydrogen peroxide with reduced glutathione serving as a hydrogen donor. The significance of this enzyme in the protection of hemoglobin from oxidative breakdown has been shown previously (2). The erythrocyte reduced glutathione peroxidase has now been purified by column chromatography...

Upconversion luminescence (UCL) is mainly a nonlinear optical method that some engineered nanomaterials can attain and helps in the transformation of low energy phonons (near-infrared photons) into higher (ultraviolet (UV) visible light photons). (UC) are suitable candidate for preparing near-infrared (NIR) light-responsive photocatalytic systems by mixing with other photocatalysts. Many report...

A method has been developed in which the human urinary prostaglandin metabolites are converted into stable prostanoic and prostanediotic acid homologues. The urine is reduced with sodium borohydride and the organic compounds, isolated with an Amberlite XAD-2 column, are treated with fuming hydrogen iodide, followed by treatment with zinc in methanolic hydrogen chloride, to yield dimethyl tetran...

The crystal structure of the title compound, C(7)H(11)N(3) (2+)·2Cl(-), has been determined as part of a project focusing on the ability of the benzamidine system to form strong hydrogen bonds in aqueous media. It is commonly used as a ligand in affinity chromatography for purification and immobilization of enzymes. A twofold rotation axis runs along the axis of the cation. The orientation of t...

Warm plasma techniques are considered a promising method of tar removal in biomass-derived syngas. The fate another problematic syngas impurity—hydrogen sulfide—is studied this work. It is revealed that processing simulated with microwave results hydrogen sulfide conversion. For different gas flow rates (20–40 NLPM) and concentrations ranging from 250 ppm to 750 ppm, the conversion rate varies ...

A number of compounds with biphenyl as a mesogenic fragment and structure simulating LC dimers, polymers side chain groups star-shaped have been synthesized. An approach for the synthesis such under mild conditions without complex purification procedure quantitative yield, has developed. The is implementation “click chemistry” methods compounds. It shown that state observed only if there are th...

In the 1980s and 1990s, the development of oxygen ion conductors for solid electrolytes, as well as mixed oxygen–electron conductors as electrodes for solid oxide fuel cells, brought scientists to envision a possibility of mixed-conducting oxygenpermeable ceramic membranes. Today this field is well established, and ceramic membranes are close to implementation in processes for oxygen extraction...

The search for new materials for hydrogen storage is important for the development of future hydrogen energy applications. In this Thesis, it is shown that new materials with interesting properties can be synthesized by the reaction of hydrogen with various nanocarbon precursors. The thesis consists of two parts. The first part is devoted to studies of hydrogen storage in some metalorganic fram...