The dynamics of sedimentation of whole blood cells and erythrocyte mass during sequential dilution with dextran solutions in vitro has been studied. Nonmonotonic changes in the optical density of the border between erythrocytes deposited both in their own plasma and in model systems were revealed. Fluctuations in the average and instantaneous rates of the process recorded at the boundary of cell subsidence confirm the nonlinear and cooperative nature of erythrocyte sedimentation, which is associated with the formation and separation of phases between cellular, liquid and gaseous components of blood. The structural reorganization of this dynamic system can be modulated in various ways, for example, by adding dextran solutions used in clinical practice in the case of blood loss, for detoxification, treatment and prevention of thrombophlebitis and shock conditions. It has been shown that the macro- and microkinetics of the erythrocyte sedimentation process depends both on the degree of dilution of blood (or model systems) by dextrans and on their molecular weight. The results obtained are consistent with the phase hypothesis of the settling of blood cells as a biocolloid, and can also be used in clinical hemotransfusiology to select an individual dosage of infusion solutions.

The dynamics of sedimentation of whole blood cells, as well as erythrocyte mass, has been studied during sequential dilution with dextran solutions in vitro. Nonmonotonic changes in the optical density of the boundary between erythrocytes sedimenting both in their own plasma and in model systems were revealed. The oscillations of both the average rate and the instantaneous rates of the process recorded at the cell sedimentation boundary confirm the non-linear and cooperative nature of erythrocyte sedimentation, which is associated with the formation and separation of phases between the cellular, liquid and gaseous components of blood. The structural rearrangement of this dynamic system can be modulated by various factors, for example, dextran solutions used in clinical practice for blood loss, for detoxification, treatment and prevention of thrombophlebitis and shock conditions. It was shown that both the degree of dilution of blood or model systems with dextrans and their molecular weight change the macro- and microkinetics of the process of erythrocyte sedimentation. These results are consistent with the phase hypothesis of sedimentation of blood cells as a biocolloid, and can also be used in clinical blood transfusion for selecting an individual dosage of infusion solutions.

The dynamics of sedimentation of blood erythrocytes was studied during its sequential dilution with its own plasma in vitro. It was shown that with an increase in the degree of dilution of whole blood over 5%, a monotonous increase in the average erythrocyte sedimentation rate is observed. Dynamic changes in the density of the plasma-red cells border were found, which are manifested in the oscillatory nature of changes in the rate of the process and the phenomena of “negative sedimentation rate.” They are associated with structural reorganization of the system and phase separation “associated plasma/erythrocytes,” and can be modulated by the relative content of plasma in the blood, exhibiting a non-monotonic nature of the changes. The results obtained can be useful for further development of a model of behavior of blood cells as an active colloid, as well as for the creation of a method for monitoring the individual dosage of infusion solutions used in clinical practice for blood loss, for detoxification, treatment and prevention of thrombophlebitis and shock conditions.

Water vapor absorbs well in the infrared (IR) region of the spectra. On the other hand, it was recently demonstrated that IR radiation promotes formation of the so-called exclusion zones (EZ) at the interfaces between hydrophilic surfaces and water. EZ-water properties differ significantly from that of bulk water. It was studied for the first time whether treatment of water with humid air irradiated with IR-C band could change its physical-chemical properties, making it EZ-water-like. Humid air irradiated with IR was called coherent humidity (CoHu). Redox potential and surface tension decreased in deionized water and mineral water samples that were treated with CoHu, while dielectric constant increased in such water samples. After such treatment of carbonate or phosphate buffers, their buffer capacity against acidification and leaching significantly increased. No such changes were observed in water samples treated with non-irradiated humid air. Thus, after treatment of tested aqueous systems with humid air exposed to IR radiation, their properties change, making them more like EZ-water. The results suggest that IR irradiation of humid air converts it into a carrier of a certain physical signal that affects water properties.

Hydrated fullerene C 60 (HyFn) is a supramolecular object in which the nanosized fullerene molecule is enclosed in a multilayer shell of water molecules. Despite the fact that fullerene C 60 is chemically rather inert, aqueous solutions of HyFn exhibit a wide spectrum of biological activity in particular in low and ultra-low concentrations. Thus, physical and chemical properties of aqueous solutions of HyFn in a wide range of its dilutions are of interest. Here we compared some physical and chemical properties of aqueous systems prepared by successive 100-fold dilutions of HyFn (10 –7 M) with deionized water, with their intensive shaking at each stage up to the calculated HyFn concentration of 10 –31 M and of the corresponding “dilutions” of deionized water prepared in the same manner (controls). We studied the character of рН changes in dilutions when titrating them with HCl and NaOH. It turned out that HyFn dilutions had significantly higher buffering capacity against acidification with HCl than control water “dilutions.” At the highest acidity reached pH in all HyFn dilutions was almost 0.3 units higher than in the respective controls. Average buffering capacity of HyFn dilutions and water controls when titrated with NaOH did not differ. However, differences in buffering capacity could be seen between consecutive dilutions of HyFn at their titration either with NaOH or with HCl. Most prominent differences were observed between consecutive HyFn dilutions in the range of calculated concentrations 10 –17 –10 –31 M titrated with NaOH while no significant differences in pH between equivalent “dilutions” of control water were observed. Similar though less prominent variations in buffering capacity between consecutive HyFn dilutions titrated with HCl were also noticed. Thus, titration with an acid and especially with an alkali made it possible to reveal differences between individual dilutions of HyFn, as well as differences between HyFn dilutions and corresponding dilutions of water. These features may be due to complexity in the structural properties of aqueous systems, which, supposedly, can arise due to the emergence of heterogenous aqueous regions (“clouds”) in the course of their dilutions with intensive mixing at each stage. In order to find out if such heterogeneity is a characteristic for HyFn dilutions we used the method of drying microsphere-containing droplets, whose aqueous base were either HyFn dilutions in the range of calculated HyFn concentration 10 –7 –10 –31 M or respective water controls. It was found that a significant part of HyFn dilutions is characterized by mesoscopic heterogeneity. It showed up by the tendency of microspheres to concentrate in a specific way resembling ornaments once the droplets had dried. As the degree of HyFn dilution increased, the number of dried droplets with an ornament-like microsphere distribution increased. Same was also observed in water control drops. However, for the dilutions of HyFn equivalent to concentrations 10 –19 –10 –31 M the percentage of complexly structured dried up droplets reached 60–80%, while for dried out drops of respective water controls it did not exceed 15–20%. Thus, the physicochemical properties of high dilutions of hydrated fullerene differ not only from each other dependently on the dilution level, but also from those of high dilutions of water, which can be explained by the structuredness and heterogeneity of these aqueous systems. Therefore, upon dilution process the properties of the solutions change according to complex and non-linear laws so that final dilutions cannot be identical in their properties and features to those of the initial solutions (before dilutions process) and to the untreated water. Dilution process, in view of the aforementioned, should not be underestimated when analyzing properties of the solutions, having shown to be able to affect dramatically properties of the solutions.

It is shown for the first time using a complex of physicochemical methods (dynamic and electrophoretic light scattering, conductometry, pH-metry) that below a threshold concentration of 1.0•10 –7 mol L –1 the disperse phase of the aqueous systems based on moss peptide PpCLE2 undergoes the domain—nanoassociate rearrangement, which affects the nonmonotonic concentration dependences of the specific electrical conductivity and pH and can result in a multidirectional profile of the dependence of the growth of the primary and lateral roots of the Arabidopsis thaliana seed plant in the range of calculated concentrations from 1.0•10 –6 to 1.0•10 –12 mol L –1 .

A pilot study of the effect of the antioxidant drug ethylmethylhydroxypyridine malate on indicators of oxidative stress in patients with chronic cerebral ischemia. At 6 day course administration investigated the antioxidant in these patients significantly accelerates the process of generation of superoxide anion radical, established by lucigenin-depended chemiluminescence that probably regulate a feedback mechanism oxidase systems. This increases the activity of superoxide dismutase, and reduced the concentration of secondary peroxidation product - malondialdehyde, making reasonable use of antioxidants in the treatment of this pathology.

Dependence of dynamics of blood sedimentation upon successive dilution of blood with saline solution in vitro was studied basing on the application of the principles of the system of technical vision. Oscillatory nature of the process of sedimentation of boundary between blood cells and plasma dependent on the degree of blood dilution with saline was found rate changes. The correlation between ESR (erythrocyte sedimentation rate) and the concentration of saline was determined.

Data obtained by electron paramagnetic resonance (EPR) and chemiluminescence analysis indicate that in aqueous solutions of bicarbonates, superoxide radical and other reactive oxygen species (ROS) are constantly produced. The stationary level of the superoxide radical is found to increase when a solution is illuminated. Reactions involving ROS are shown to be accompanied by the generation of electron excitation energy, keeping bicarbonate solutions in a stable nonequilibrium state. The system can emit part of this energy. Variations in emitting activity are found to correlate with variations in the cosmophysical factors. The emitting activity of solutions is found to vary in the presence of low and ultralow concentrations of hydrated fullerenes. It is noted that the phenomenon of spontaneous charge separation in aqueous systems (G. H. Pollack) could play a role in maintaining a stable nonequilibrium state in bicarbonate systems where the reactions with ROS participation are catalyzed by forms of carbonate. It is concluded that the abovementioned properties of bicarbonate aqueous systems most likely keep living matter whose structural basis is formed by these systems in a stable excited state, thereby making it highly sensitive to the action of external factors with low and ultralow intensities.

An automatic device for the resolution of red-blood sedimentation at a high temporal level was designed. Using the principles of a technical vision system, a detailed analysis of red-blood sedimentation kinetics revealed the non-linear, macrokinetic behavior of whole-blood sedimentation, including several periods of the observed process. Dynamic changes in the density of the boundary between red blood and plasma, which were manifested in the oscillatory nature of process rate changes and the phenomenon of negative sedimentation, were revealed. Video recording of the process permitted the observation of nano- and microbubles of gas that were evacuating from blood during its settling. A hypothesis was suggested that represents blood as an active colloidal system that consists of at least three components, viz., plasma (liquid), cells (solid), and gas.