About
61
Publications
13,101
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
828
Citations
Publications
Publications (61)
It has been shown that when drops fall on a solid surface, the physicochemical properties of water change. After drops fall on a solid surface, water saturated with atmospheric gases luminesces in the blue region of the spectrum. The luminescence intensity decreases exponentially after exposure. The concentration of gases (mo-lecular oxygen and car...
The review presents both new theoretical and practical results of the application of modern physical methods and technologies in agriculture. Physical technologies and materials for passive control of the solar spectrum in greenhouses are considered. A review of the instrumental base used for laser remote sensing of agro- and biosystems, modern las...
В обзоре приводятся, как новые теоретические, так и практические результаты применения современных физических методов и технологий в сельском хозяйстве. Рассматриваются физические технологии и материалы для пассивного управления солнечным спектром в теплицах. Проводится обзор приборной базы применяемой для лазерного дистанционного зондирования агро...
Optical methods (spectroscopy, spectrofluorometry, dynamic light scattering, and refrac-tometry) were used to study the change in the state of hen egg-white lysozyme (HEWL), protein molecules, and gold nanoparticles (AuNPs) in aqueous colloids with changes in pH, and the interaction of protein molecules with nanoparticles was also studied. It was s...
The geomagnetic field plays an important role in the existence of life on Earth. The study of the biological effects of (hypomagnetic conditions) HMC is an important task in magnetobiology. The fundamental importance is expanding and clarifying knowledge about the mechanisms of magnetic field interaction with living systems. The applied significanc...
Simple Summary: The study of the biological effects of time-varying magnetic fields has attracted more and more attention from researchers, and the number of publications on this topic is growing every year. In this article, we plan to briefly introduce the reader to the results of research, ideas, and discussions on the biological effects of time-...
Plant diseases of an infectious nature are the reason for major economic losses in agriculture throughout the world. The early, rapid and non-invasive detection of diseases and pathogens is critical for effective control. Optical diagnostic methods have a high speed of analysis and non-invasiveness. The review provides a general description of such...
With the help of laser ablation, a technology for obtaining nanosized crystalline selenium particles (SeNPs) has been created. The SeNPs do not exhibit significant toxic properties, in contrast to molecular selenium compounds. The administration of SeNPs can significantly increase the viabilities of SH-SY5Y and PCMF cells after radiation exposure....
A characteristic feature of water and aqueous solutions is spontaneous chemiluminescence. Previously we have discovered the phenomenon of activation of the spontaneous chemiluminescence of waterduring shaking, with subsequent decreasing chemiluminescence intensity and reaching a stationary level. Itis unclear how spontaneous chemiluminescence of wa...
This case report highlights the benefit or harm of breastfeeding in a patient with Kidney Failure with Replacement Therapy (KFRT) undergoing program hemodialysis. This is a unique clinical case, as pregnancy and successful delivery are rare in this group of females. With a favorable outcome, the possibility of breastfeeding is especially relevant f...
Currently, selenium nanoparticles (SeNPs) are considered potential immunomodulatory agents and as targets for activity modulation are granulocytes, which have the most abundant population of immune blood cells. The present study aims to evaluate the cytotoxic effect and its effect on the functional responses of granulocytes. In addition to the intr...
The search for environmentally neutral construction materials is an important aim of science from the middle of the XX century. We elaborated the method of the smelting of the new alloy Ti-20Nb-10Ta-5Zr. The Ti-20Nb-10Ta-5Zr was a β-phase alloy with an ~550 MPa yield strength, an ~700 MPa of ultimate strength and >50 GPa Young’s modulus. The Ti-20N...
The microwave setup for obtaining plasma-activated water (PAW) has been created. PAW contains significant concentrations of H2O2 and NO3−, has a reduced content of O2, high conductivity, a high redox potential and low pH. Likewise, the specific electrical conductivity and concentration of H2O2 and NO3− linearly depend on the treatment time. These p...
In this paper, iron oxide nanoparticles coated with trisodium citrate were obtained. Nanoparticles self-assembling stable clusters were ~10 and 50–80 nm in size, consisting of NPs 3 nm in size. The stability was controlled by using multi-angle dynamic light scattering and the zeta potential, which was 32 � 2 mV. Clusters from TSC-IONPs can be dest...
Understanding the role of astrocytes in the central nervous system has changed dramatically over the last decade. The accumulating findings indicate that glial cells are involved not only in the maintenance of metabolic and ionic homeostasis and in the implementation of trophic functions but also in cognitive functions and information processing in...
The properties of a lysozyme solution under laser-induced breakdown were studied. An optical breakdown under laser action in protein solutions proceeds with high efficiency: the formation of plasma and acoustic oscillations is observed. The concentration of protein molecules has very little effect on the physicochemical characteristics of optical b...
Development of eco-friendly and biodegradable package materials is an important goal of modern science and international industry. Poly(lactic)-co-glycolic acid (PLGA) is suitable for this purpose. However, biocompatible materials may be contaminated with bacteria. This problem may be solved by the addition of metal oxides nanoparticles (NPs) with...
In this study, we investigated the effects of additional ultraviolet radiation (UV) on the main growth fluorescent lamp light on pigment content and essential oil accumulation in sweet basil (Ocimum basilicum L.). Three different UV light sources from light-emitting diodes and discharge lamps, which emit UV in the UV-A (315–400 nm), UV-B (280–315 n...
The potential of the method of fluorescence spectroscopy for the detection of damage and diseases of fruits and vegetables was studied. For this purpose, the spectra of fluorescence of healthy and rotten apples and potatoes have been investigated. Excitation of samples was carried out using a continuous semiconductor laser with a wavelength of 405...
The study is aimed at elucidating the effect of selenium nanoparticles (SeNPs) on the death of cells in the primary culture of mouse cerebral cortex during oxygen and glucose deprivation (OGD). A primary cell culture of the cerebral cortex containing neurons and astrocytes was subjected to OGD and reoxygenation to simulate cerebral ischemia-like co...
Microbial antibiotic resistance is an important global world health problem. Recently, an interest in nanoparticles (NPs) of silver oxides as compounds with antibacterial potential has significantly increased. From a practical point of view, composites of silver oxide NPs and biocompatible material are of interest. A borosiloxane (BS) can be used a...
A technology for producing a nanocomposite based on the borsiloxane polymer and aluminum oxide nanoparticles (Al2O3 NPs) has been developed. Nanocomposites containing 0.001, 0.01, and 0.1 wt% Al2O3 NPs have been created. It has been shown that the nanocomposite with any content of Al2O3 NPs did not lose the main rheological properties of borsiloxan...
Identification of specific mycotoxins p. Fusarium contained in infected winter wheat seeds can be achieved by visually recognizing their distinctive phenotypic species. The visual identification (ID) of species is subjective and usually requires significant taxonomic knowledge. Methods for the determination of various types of mycotoxins of the p....
The physicochemical properties of NaCl aqueous solutions in a wide range of concentrations were studied. We determined that constant magnetic fields with an induction of up to 7 T had a significant effect on the physicochemical properties of these solutions. First, we detected a decrease in pH that was dependent on the magnetic field strength both...
A technology for producing a nanocomposite based on the borsiloxane polymer and chemically unmodified fullerenes has been developed. Nanocomposites containing 0.001, 0.01, and 0.1 wt% fullerene molecules have been created. It has been shown that the nanocomposite with any content of fullerene molecules did not lose the main rheological properties o...
In this work, we, for the first time, manufactured a plasma-chemical reactor operating at a frequency of 0.11 MHz. The reactor allows for the activation of large volumes of liquids in a short time. The physicochemical properties of activated liquids (concentration of hydrogen peroxide, nitrate anions, redox potential, electrical conductivity, pH, c...
In recent decades, studies on the functional features of Se nanoparticles (SeNP) have gained great popularity due to their high biocompatibility, stability, and pronounced selectivity. A large number of works prove the anticarcinogenic effect of SeNP. In this work, the molecular mechanisms regulating the cytotoxic effects of SeNP, obtained by laser...
Using a number of optical techniques (interferometry, dynamic light scattering, and spectroscopy), denaturation of hen egg white lysozyme (HEWL) by treatment with a combination of dithiothreitol (DTT) and guanidine hydrochloride (GdnHCl) has been investigated. The denaturing solutions were selected so that protein denaturation occurred with aggrega...
Using Fluorescence Spectrometer Lumina, fluorescence spectra of surface slices of apples and potatoes were measured. Some of the samples were healthy, some were infected: apples had scabs, potatoes had rot and mechanical damage. For apples, two zones were found where the emission spectra of healthy and scab-affected samples differed significantly f...
The physicochemical properties of water activated by high-purity low-temperature argon plasma of electrodeless microwave discharge at atmospheric pressure are investigated. Such parameters of activated water as electrical conductivity, redox potential, hydrogen index (pH), the concentrations of dissolved molecular oxygen, hydrogen peroxide, OH-radi...
Long-lived luminescence in the blue region was found to occur in deionized water saturated with atmospheric gases following mechanical shaking. Luminescence intensity decreased exponentially after the cessation of stress. During vigorous mechanical shaking, we observed gas bubbles in solution, and the liquid-gas interface area increased noticeably....
The effect of a static magnetic field with induction up to 7 T on the concentration of dissolvedmolecular oxygen, the concentration of hydrogen peroxide, the redox potential, and the electrical conductiv-ity of aqueous solutions with a low concentration of active impurities is studied. It was shown that the con-centration of dissolved molecular oxy...
In this study, we measured and analyzed the spectral characteristics of a low‐frequency magnetic field (MF) inside several gasoline‐powered cars while driving on busy city roads. The spectra obtained upon measurements in the interior of the cars are compared with those measured in office locations at different times of the day and with different di...
In this work, we studied the concentration dependences of molecular oxygen and hydrogen in aqueous solutions during repeated dilutions and turbulent stirring accompanying the dilution procedure. Deionized water was saturated with molecular hydrogen and molecular oxygen by sparging. The gas concentration was measured by polarographic methods. It was...
The efficiency of controlled drug release systems is largely determined by the properties of the matrix material. Our research team developed a process for production of biodegradable polymer films based on high-molecular-weight polylactide with properties necessary for medical and agricultural applications. A process for incorporation of drugs (ge...
A new method for studying the conformational state of a protein and its interaction with a solvent has been developed. The method is based on measuring the refractive index of a protein solution using a precision laser interferometer with an error of 10-7. The interferometer was calibrated on the basis of the known dependences of the refractive ind...
A new method for studying the conformational state of a protein and its interaction with a solvent has been developed. The method is based on measuring the refractive index of a protein solution using a precision laser interferometer with an error of 10-7. The interferometer was calibrated on the basis of the known dependences of the refractive ind...
Исследуются концентрационные зависимости молекулярного кислорода и водорода в водных растворах при многократных разбавлениях и турбулентных перемешиваниях, сопровождающих процедуру разбавления. Деионизированную воду насыщали молекулярным водородом и молекулярным кислородом путем барботации. Измерение концентрации газов проводили полярографическими...
The article presents the details of the process of structural organization, formation and disassembly of the nucleolus, chromatin condensation during the passage of the cell cycle studied by the method of classical transmission electron microscopy (TEM) in the cells of the meristematic zone of the wheat root. The transformations of peripheral chrom...
We report the results of a physiological study that include ECG analysis, capillary blood velocity (CBV) data, and blood pressure (BP) measurements obtained under conditions of modified external magnetic field (MF). Each of eight volunteers was sequentially exposed to MFs of three different types for 22 h. A Helmholtz-like MF exposure system was us...
Using an original laser interferometer of enhanced sensitivity, an increase in the refractive index of a protein solution was observed during the reaction of proteolysis catalyzed by pepsin. The increase in the refractive index of the protein solution at a concentration of 4 mg/ml was \( 9 \times 10^{-6} \) for bovine serum albumin and \(2.4 \times...
The influence of the previously recorded geomagnetic storm (GS) on human cardiovascular system and microcirculation has been studied under laboratory conditions. Healthy volunteers in lying position were exposed under two artificially created conditions: quiet (Q) and storm (S). The Q regime playbacks a noise-free magnetic field (MF) which is close...
The protein refractive index was observed to increase by 8 · 10–6 during proteolysis of bovine serum albumin (BSA, 4 mg/mL) with pepsin (2.2 mg/mL). It was believed earlier that the refractive index of a protein solution depends only on the protein concentration and amino-acid composition and remains unchanged during protein hydrolysis. An increase...
The integral parameter of the physical state of liquid water, its stoichiometric composition, is considered. This factor takes into account that the substance of liquid water contains hydrogen and oxygen atoms in the proportion other than the ideal 2: 1 ratio characteristic of a separate water molecule. The stoichiometry index x of water — the devi...
Aim. To assess the potential of the integral assessment of cardiovascular system status in patients with arterial hypertension (AH), based on the evaluation of the parameters of microcirculation (non-invasive digital capillaroscopy) and macrocirculation (pulse wave velocity (PWV) and endothelial function). Material and methods. The study included 1...
Previously, we reported that the hypomagnetic field obtained by the 100-fold
deprivation of the geomagnetic field affected human cognitive processes as
estimated in several computer tests. The exposure to the hypomagnetic field
caused a statistically significant increase both in the task processing time
and in the number of errors. The magnitude of...
Effects of magnetic field (MF) at 50 Hz on chromatin conformation were studied by the method of anomalous viscosity time dependence (AVTD) in human lymphocytes from two healthy donors. MF within the peak amplitude range of 5-20 µT affected chromatin conformation. These MF effects differed significantly between studied donors, and depended on magnet...
In our previous works, we reported that compensation of the geomagnetic field to a level less than 0.4 microT ("zero magnetic field," or ZMF) affected human cognitive processes. ZMF exposure increased the number of errors and the task processing time by 2.4% in average. However, in the array of the magnetic effects calculated from the experimental...
The influence of the compensation of the geomagnetic field to a level less than 0.4 microT on human cognitive processes has been studied. Forty persons took part in the study; they were divided by sex and age into four groups. The cognitive abilities of the persons were tested. Each person took part in two experiments: in control conditions and und...
The effects of ELF alternating magnetic fields tuned to Zn(2+) on the growth of cancer cells with different status of p53 were investigated using a cell proliferation assay. Human cancer cells HeLa (cervix cancer, p53(+/+)), Saos-2 and Saos-2-His-273 (osteosarcoma, p53(-/-) and p53 His-273 mutant, respectively), H1299tTA and H1299tTA-His175 (lung c...
The method for studying the effects of weak magnetic fields and "magnetic vacuum" on the psychophysiological state of a human organism is proposed. This method includes the system of the exposure of a human organism to uniform constant and alternating magnetic fields and the system of computerized psychological tests. The influence of the weakening...
The purpose was to compare the radiation-induced apoptosis in human lymphocytes with DNA-loop relaxation and DNA damage as a function of radiation dose and time after exposure. Morphological changes were analysed by staining with fluorescent dyes and apoptotic fragmentation of DNA with conventional agarose gel electrophoresis, pulsed-field gel elec...
Here we investigated whether microwaves (MWs) of Global System for Mobile Communication (GSM) induce changes in chromatin conformation in human lymphocytes. Effects of MWs were studied at different frequencies in the range of 895-915 MHz in experiments with lymphocytes from seven healthy persons. Exposure was performed in transverse electromagnetic...
gamma-Irradiation action within a dose range of 0-20 Gy on parental djungarian hamster fiborblasts, DH-TK- cell line, and the progenies of these irradiated cells, surviving acute exposure to 20 Gy irradiation, PIC-20 cell line, was examined. The PICs were 3 times more radioresistant than the parental cells as calculated from D0. Using a method of a...
The changes in genome conformational state (GCS) induced by low-dose ionizing radiation in E. coli cells were measured by the method of anomalous viscosity time dependence (AVTD) in cellular lysates. Effects of X-rays at doses 0.1 cGy--1 Gy depended on post-irradiation time. Significant relaxation of DNA loops followed by a decrease in AVTD. The ti...
Formation of an enhanced radioresistance of biological objects to radiation is a form of the adaptive response of biological systems exposed to ionizing radiation. The causes of radioresistance diversity remain insufficiently understood. In recent years, there have been several works in which changes in the structural organization of chromatin were...
Non-thermal GSM microwaves affect chromatin conformation in human lymphocytes similar to heat shock Ruslan Sarimov 1, 2, Lars Malmgren 3, Bertil Persson 3, Patrick A. Mason 4, Mats Harms-Ringdahl 1, Igor Y. Belyaev 1,2 * 1 Department of Genetic and Cellular Toxicology, Stockholm University, Stockholm, Sweden; 2Department of Biophysics, Radiation Ph...
In our previous work, we reported that compensation of the geomagnetic field to a level less than 0.4 microT (“zero magnetic field”, or ZMF) affected human cognitive processes. The compensation of the geomagnetic field was organized in a special wood box of 1×1×1.5 m3 in size. The box included a wire mesh that shielded a person from the outer rando...
