[An electron microscopic analysis of the stimulating and toxic effects of mumie-containing preparations]. / Elektronno-mikroskopicheskii analiz stimuliruiushchego i toksicheskogo éffektov mumiesoderzhashchikh preparatov.

Ultrastructural changes of myocardium cells, neurons of sensorimotor cerebral cortex, endothelium of blood microvessels were registered by transmissive electron microscopy in mice receiving rock balm preparations per os. Both stimulating and toxic effects were observed dependently on used concentrations. This necessitates dosage to be strictly observed.

2D plasmon excitation and nonthermal effects of microwaves on biological membranes.

There are several experimental reports that have demonstrated a remarkable increase in conduction of ions along the interface between water and a polar-lipid monolayer as contrasted with that in a bulk-water phase. A simple model was developed for the collective ionic modes of a charged spherical membrane that takes the increase into account. Starting from the hydrodynamic equations for surface ions inside and outside a cell, the dispersion relation for intrinsic cellular electrical oscillations was obtained. Properties were calculated for surface-plasmon modes as well as for a resonant response of a charged membrane bilayer to microwave pumping.

Homochirality and long-range transfer in biological systems.

It has been shown that the chiral purity of biomacromolecules has important biological significance not only from the standpoint of lock-and-key stereocomplementarity, but also as a basis for long-range communication in biosystems. An explicit demonstration is given for the case of proton transfer along the hydrogen-bonded chain that is formed by amino acids containing OH groups. It is found that the replacement of the L-amino acid residue by the D-isomer in a peptide chain suppresses proton transport through the hydrogen bond network.