Use Of Low-temperature Plasma Research Articles

The use of low-temperature plasma for disinfection of open surfaces of industrial premises

The results of research on inactivation of microorganisms on open surfaces of poultry houses using low-temperature non-equilibrium plasma are presented. AC electrospark discharge at atmospheric pressure was used as its source. Discharge types are streamer, flare. The simultaneous effect of electromagnetic fields, charged particles and chemically active compounds formed by electrospark discharge on the efficiency of pathogenic microflora inactivation for various surfaces (acrylic primer, epoxy resin, yacht varnish, concrete-graphite mixture) is considered. The material to be treated (a biological model of the bedding surface of the floor in the poultry house with the applied protective layer) is installed after the electrospark discharge chamber blown with plasmaforming gas (atmospheric air). The main affecting factors are active chemical compounds: ozone; free radicals (OH, O, O2), ultraviolet radiation in the range of 750–1600 THz, electromagnetic radiation from 50 Hz to 980 MHz, charged particles and vibrationally excited nitrogen and oxygen molecules. Characterizations of electromagnetic radiation flux density at electrospark discharge are obtained. According to the research results, the maximum effect of treatment of exposed surfaces with low-temperature non-equilibrium plasma is achieved when epoxy resin is used as a surface protection material. The number of inactivated microorganisms at exposure of 10-20 s reaches 100%. When inactivating microorganisms on exposed surfaces, it is not economically feasible to take exposure time longer than 20 s. The studies found no significant difference when using streamer or flare discharges to treat outdoor facility surfaces.

CO2 Decomposition in Microwave Discharge Created in Liquid Hydrocarbon

The task of CO2 decomposition is one of the components of the problem associated with global warming. One of the promising directions of its solution is the use of low-temperature plasma. For these purposes, different types of discharges are used. Microwave discharge in liquid hydrocarbons has not been studied before for this problem. This paper presents the results of a study of microwave discharge products in liquid Nefras C2 80/120 (petroleum solvent, a mixture of light hydrocarbons with a boiling point from 33 to 205 °C) when CO2 is introduced into the discharge zone, as well as the results of a study of the discharge by optical emission spectroscopy and shadow photography methods. The main gas products are H2, C2H2, C2H4, CH4, CO2, and CO. No oxygen was found in the products. The mechanisms of CO2 decomposition in the discharge are considered. The formation of H2 occurs simultaneously with the decomposition of CO2 in the discharge, with a volumetric rate of up to 475 mL/min and energy consumption of up to 81.4 NL/kWh.

Inkjet-printed plasma-functionalized polymer-based capacitive sensor for PAHs

The inkjet-printing technology is utilized to foster conducting layers, interconnections, and other features on different substrates of which its success greatly depends on the surface properties of the substrates. In the present work, we reported the use of low-temperature plasma (LTP) to assist in tailoring the surface properties of polyethylene terephthalate (PET). This facilitated the inkjet printing of a capacitive electrode sensor design using silver nano-ink (AgNI) for polycyclic aromatic hydrocarbons (PAHs). PAHs are ubiquitous environmental pollutants that are of great health concern. We have sifted methyl methacrylate (MMA), N-vinylpyrrolidone (VP), and oxygen (O2) as plasma fed-gases for improving the adhesion of printed AgNI on PET. We observed improved surface hydrophilicity of the plasma-treated PET (p-PET). This was evidenced by the decrease in water contact angle (WCA). The change in surface chemistry with plasma treatment was assessed using X-ray Photoelectron spectroscopy (XPS). Atomic Force Microscopy (AFM) was employed in determining the nanoscale surface roughness of PET. We then fabricated the capacitive sensor using AgNI to quantitatively sense the PAH from aqueous media. This sensor was subsequently characterized using Scanning Electron Microscopy (SEM) and Keyence 3D imaging. The capacitance values have shown a linear response with increased PAH concentration. The sensor design exhibits a high sensitivity for PAH concentrations up to 0.05 ng/mL. Ultimately, these results have demonstrated the potential of this polymer device for pollutant sensing applications.

Low-Temperature Plasma Short Exposure to Decontaminate Peri-Implantitis-Related Multispecies Biofilms on Titanium Surfaces In Vitro.

The use of low-temperature plasma (LTP) is a novel approach to treating peri-implantitis. LTP disrupts the biofilm while conditioning the surrounding host environment for bone growth around the infected implant. The main objective of this study was to evaluate the antimicrobial properties of LTP on newly formed (24 h), intermediate (3 days), and mature (7 days) peri-implant-related biofilms formed on titanium surfaces. Actinomyces naeslundii (ATCC 12104), Porphyromonas gingivalis (W83), Streptococcus oralis (ATCC 35037), and Veillonella dispar (ATCC 17748) were cultivated in brain heart infusion supplemented with 1% yeast extract, hemin (0.5 mg/mL), and menadione (5 mg/mL) and kept at 37°C in anaerobic conditions for 24 h. Species were mixed for a final concentration of ~105 colony forming units (CFU)/mL (OD = 0.01), and the bacterial suspension was put in contact with titanium specimens (7.5 mm in diameter by 2 mm in thickness) for biofilm formation. Biofilms were treated with LTP for 1, 3, and 5 min at 3 or 10 mm from plasma tip to sample. Controls were those having no treatment (negative control, NC) and argon flow under the same LTP conditions. Positive controls were those treated with 14 μg/mL amoxicillin and 140 μg/mL metronidazole individually or combined and 0.12% chlorhexidine (n = 6 per group). Biofilms were evaluated by CFU, confocal laser scanning microscopy (CLSM), and fluorescence in situ hybridization (FISH). Comparisons among bacteria; 24 h, 3-day, and 7-day biofilms; and treatments for each biofilm were made. Wilcoxon signed-rank and Wilcoxon rank sum tests were applied (α = 0.05). Bacterial growth was observed in all NC groups, corroborated by FISH. LTP treatment significantly reduced all bacteria species compared to the NC in all biofilm periods and treatment conditions (p ≤ 0.016), and CLSM corroborated these results. Within the limitation of this study, we conclude that LTP application effectively reduces peri-implantitis-related multispecies biofilms on titanium surfaces in vitro.

Development of a Mobile Sensory Device to Trace Treatment Conditions for Various Medical Plasma Source Devices.

The emerging use of low-temperature plasma in medicine, especially in wound treatment, calls for a better way of documenting the treatment parameters. This paper describes the development of a mobile sensory device (referred to as MSD) that can be used during the treatment to ease the documentation of important parameters in a streamlined process. These parameters include the patient’s general information, plasma source device used in the treatment, plasma treatment time, ambient humidity and temperature. MSD was developed as a standalone Raspberry Pi-based version and attachable module version for laptops and tablets. Both versions feature a user-friendly GUI, temperature–humidity sensor, microphone, treatment report generation and export. For the logging of plasma treatment time, a sound-based plasma detection system was developed, initially for three medically certified plasma source devices: kINPen® MED, plasma care®, and PlasmaDerm® Flex. Experimental validation of the developed detection system shows accurate and reliable detection is achievable at 5 cm measurement distance in quiet and noisy environments for all devices. All in all, the developed tool is a first step to a more automated, integrated, and streamlined approach of plasma treatment documentation that can help prevent user variability.

Experience in the use of low-temperature plasma in the therapy of radiation reactions.

The use of low-temperature plasma is a modern and developing direction in medicine, including rehabilitation. Low-temperature plasma (LTP) has a high antiseptic, wound-healing activity, and is also a safe method of physical exposure. In the in-patient facility of clinical unit of Federal State Budgetary Educational Institution of Further Professional Education Russian Medical Academy of Continuous Professional Education of the Ministry of Healthcare of the Russian Federation named after Prof. Yu.N. Kasatkinа, a patient was treated with low-temperature argon plasma after selective right cervical lymph node dissection, resection of the mandible, and tissues of the oral floor with defect plasty with a fibular autograft for cancer of the gingival mucosa of the mandible on the right pT4aN0M0, stage IVa. In the process of EBRT (external beam radiation therapy), the patient developed a complication in the form of a local radiation reaction with the formation of a fistulous opening in the area of the postoperative scar. The fistulous opening and the affected area were treated with a cooled air-plasma flow. During the continued use of LTP, the termination of pyorrhea, a decrease in hyperemia and edema in the area of tissues damaged by ionizing radiation were noted. The patient was promptly continued radiation therapy.
 Thus, the use of this therapeutic factor in the program of medical rehabilitation is an effective way of local impact on the pathological focus, allows you to achieve a quick reparative effect, eliminates and prevents the development of bacterial complications. In addition, the use of an air-plasma flow contributes to the rapid relief of manifestations of radiation reactions, having a beneficial effect on damaged tissues, as well as shortening the rehabilitation period for severe cancer patients in the postoperative period and during the course of EBRT. The results of LTP action have a positive effect on the general condition of patients and improve their quality of life.

Comparison of the Effect of Plasma-Activated Water and Artificially Prepared Plasma-Activated Water on Wheat Grain Properties.

Recently, much attention has been paid to the use of low-temperature plasmas and plasma-activated water (PAW) in various areas of biological research. In addition to its use in medicine, especially for low-temperature disinfection and sterilization, a number of works using plasma in various fields of agriculture have already appeared. While direct plasma action involves the effects of many highly reactive species with short lifetimes, the use of PAW involves the action of only long-lived particles. A number of articles have shown that the main stable components of PAW are H2O2, O3, HNO2, and HNO3. If so, then it would be faster and much more practical to artificially prepare PAW by directly mixing these chemicals in a given ratio. In this article, we review the literature describing the composition and properties of PAW prepared by various methods. We also draw attention to an otherwise rather neglected fact, that there are no significant differences between the action of PAW and artificially prepared PAW. The effect of PAW on the properties of wheat grains (Triticum aestivum L.) was determined. PAW exposure increased germination, shoot length, and fresh and dry shoot weight. The root length and R/S length, i.e., the ratio between the underground (R) and aboveground (S) length of the wheat seedlings, slightly decreased, while the other parameters changed only irregularly or not at all. Grains artificially inoculated with Escherichia coli were significantly decontaminated after only one hour of exposure to PAW, while Saccharomyces cerevisiae decontamination required soaking for 24 h. The differences between the PAW prepared by plasma treatment and the PAW prepared by artificially mixing the active ingredients, i.e., nitric acid and hydrogen peroxide, proved to be inconsistent and statistically insignificant. Therefore, it may be sufficient for further research to focus only on the effects of artificial PAW.

Influence of Plasma Activated Water Generated in a Gliding Arc Discharge Reactor on Germination of Beetroot and Carrot Seeds

One of the new methods of protecting and supporting plant growth is the use of low-temperature plasma. The aim of this study is to evaluate the feasibility of using plasma activated water produced in an atmospheric pressure gliding arc reactor for germination of beetroot (Beta vulgaris) and carrot (Daucus carota) seeds. The study was carried out for different plasma treatment times of water (5, 10 and 20 min) and with fixed geometry and power of the discharge system, using air as the working gas. The effect on germination was evaluated based on the fraction of germinated seeds and their length at 7 and 14 days after treatment. Analysis of fungi present on the seed surface and imaging of the seed surface using scanning electron microscopy (SEM) were auxiliary methods to evaluate the type of treatment effect. In the case of beetroot, a positive effect on the number and length of germinated seeds was observed, which increased with increasing treatment time. This effect can be attributed, among other things, to the surface changes observed on microscopic photographs. In the case of carrot seeds, a more significant positive effect on germination was observed. Fungal decontamination effect was relatively weaker than with the use of the chemical method with sodium hypochlorite.

Impact of seed color and storage time on the radish seed germination and sprout growth in plasma agriculture

The use of low-temperature plasma for the pre-sowing seed treatment is still in the early stage of research; thus, numerous factors affecting germination percentage, seedling growth, and yield remains unknown. This study aimed to estimate how two critical factors, such as harvest year and seed coat color, affect the percentage of germination and seedling growth after plasma treatment. Radish seeds stored for 2 and 1 year after harvesting (harvested in 2017 and 2018) were sorted into two colors (brown and grey) to investigate the plasma effect on harvest year and seed coat color. We analyzed the amounts of seed phytohormones and antioxidant (γ-tocopherol) were analyzed using mass spectrometry, and physical changes were studied using SEM, EDX, and EPR to understand the mechanism of plasma-induced changes in radish seeds. The obtained results revealed that plasma treatment on seeds affects the germination kinetics, and the maximal germination percentage depends on seed color and the time of seed storage after harvest. Through this study, for the first time, we demonstrated that physical and chemical changes in radish seeds after plasma treatment depends upon the seed color and harvest year. Positive effects of plasma treatment on growth are stronger for sprouts from seeds harvested in 2017 than in 2018. The plasma treatment effect on the sprouts germinated from grey seeds effect was stronger than sprouts from brown radish seeds. The amounts of gibberellin A3 and abscisic acid in control seeds strongly depended on the seed color, and plasma induced changes were better in grey seeds harvested in 2017. Therefore, this study reveals that Air scalar-DBD plasma's reactive oxygen and nitrogen species (RONS) can efficiently accelerate germination and growth in older seeds.

The Role of Mitochondria in the Dual Effect of Low-Temperature Plasma on Human Bone Marrow Stem Cells: From Apoptosis to Activation of Cell Proliferation

The potential use of low-temperature plasma (LTP) for therapeutic purposes has aroused the concern of many researchers. This paper examines the effect of LTP on the morphofunctional state of human bone marrow stem cells (BMSC). It has been established that LTP-induced oxidative stress has a dual effect on the state of stem cells. On the one hand, a cell culture exposed to LTP exhibits the progression of a destructive processes, which is manifested by the perturbation of the cell’s morphology, the initiation of lipid peroxidation and the accumulation of products of this process, like diene conjugates and malondialdehyde, as well as the induction of mitochondrial dysfunction, leading to cell death. On the other hand, the effect of LTP on BMSC located at a distance from the plasma is accompanied by the activation of proliferative processes, as evidenced by the tendency of the activity of mitochondrial biogenesis and fission/fusion processes to increase. The paper discusses the role of mitochondria and reactive oxygen species (ROS) in the cellular response to LTP.

Use of low-temperature plasma for stabilizing a combustion process under the utilization of waste products with high moisture content

Thermal recycling and disinfection of waste products in different physical states represent a comprehensive solution to the problem of waste utilization. The utilization of waste materials with high moisture content (more 70…75%) is associated with a need to evaporate a significant volume of water and causes, as a consequence, substantial additional expenses on an energy source. To cut costs related to the utilization of wastes with a high amount of water it is suggested using a coal cleaning product – a coal-water slurry fuel. The direct combustion of incompletely mechanically dehydrated (to 70-75%) wastes with high water content (cake) is an economically efficient process. However, it poses a severe problem of combustion stabilizing. The paper presents outcomes of the research into the stabilization of thermal recycling waste materials with a high level of moisture by means of low-temperature plasma in the adiabatic vortex combustion chamber. To control a burning process in the technology adapter low-temperature plasma is supplied into the base of flame. An output of a plasma generator (power supply source) is estimated as 1 kW power input per 13 kg/h suspension fuel. A dynamic range of heat output for a coal-water slurry fuel and wastes is determined to be 70-100% when generating thermal energy and utilizing wastes with high moisture content by means of low-temperature plasma as a stabilizer of a combustion process. Experimental studies carried out on a machine simulator have proven the efficiency of low-temperature plasma for utilization and disinfection of waste products in commercial farming.

The influence of selected treatment parameters with atmospheric plasma on the treatment process and wood wettability

The paper presents the use of low-temperature plasma, generated in the air at atmospheric pressure, for treatment of wood surfaces to improve their wettability. For this purpose, a dielectric barrier discharge plasma device with a floating electrode configuration was used. The density and homogeneity of the plasma discharge, formed between the isolated high voltage electrodes and the surface of the spruce (Picea abies (L.) Karst.) and beech (Fagus sylvatica L.) wood, was shown to be highly dependent on the size of the gap between the electrode and wood. Topography measurements using a confocal laser microscope showed that exposure of wood to plasma causes changes on its surface at the sub-microscopic level. Measurements of the contact angles of water droplets and water-based coating showed the improved susceptibility to wetting of treated surfaces. Differences in surface wettability were also detected depending on the selected machining parameters: type of wood, workpiece feed speed, the distance between the electrodes, the distance between the electrodes and workpiece, and workpiece thickness.

The use of low-temperature plasma in a combined technology for the formation of wear-resistant boron-containing coatings

Combined technologies based on the use of concentrated energy fluxes, including low-temperature plasma and a pulsed electron beam, is currently considered to be an effective approach for surface modification of metals and alloys, cermet and ceramic materials. The purpose of the paper is to identify and analyze the patterns of changes in the elemental and phase composition, the state of the defective substructure, and mechanical properties of industrial steel Gr1J03502 subjected to combined treatment that includes plasma deposition of a powder coating based on the Ni-Cr-B-Si system and irradiation with an intense pulsed electron beam. The results obtained by optimizing the mode of the substrate surface fusion and the mode of powder deposition onto the molten surface of the substrate using low-temperature plasma generators of the original design are presented. It has been found that the optimum melting mode of the substrate surface is implemented with the following parameters of the plant: the feed rate is Vп = 50 … 150 mm/min, the distance is h1 = 30…100 mm, the scanning frequency is ω = 50 min−1, β = 75 … 90°, the amplitude is 90 … 100 mm, the plasmatron voltage is 160 V, the current strength is Im = 100 … 120 А. The optimal spraying conditions of the powders are as follows: h1 = 30÷50 mm; h2 = 100÷120 mm; β = 75÷90°; α = 45÷50°; ω = 50 min−1; Um = 140÷160 В; IS = 350÷400A; Im = 80÷100 A; GH (sprayed powder consumption) 0.8÷1 g/s. The characteristics of a plasma jet generated by an electric arc plasmatron are presented. The parameters of the electron beam are as follows: the energy of accelerated electrons is 18 keV, the energy density of the electron beam is 20 J/cm2 and 40 J/cm2, the pulse duration of the electron beam is 200 μs, the pulse repetition rate is 0.3 s−1, and the number of pulses is 10. It has been shown that plasma spraying of a powder coating leads to formation of a high relief surface containing micro and macropores, microcracks, and particles of the sprayed powder. Subsequent treatment of the modified surface with an intense pulsed electron beam of a submillisecond duration in the melting mode of the surface layer is accompanied by smoothing of the coating surface, saturation of the crystalline lattice of the steel surface with Ni, Cr, B, and Si atoms, formation of submicron-sized dendritic crystallization cells, precipitation of nanosized particles of the second phase, and formation of a quenching (martensitic) steel structure. Together, these transformations of the structure and phase composition of the material have led to a multiple increase in the microhardness of the surface layer with a thickness of up to 1500 mm.

Emerging Advanced Technologies Developed by IPR for Bio Medical Applications ‑.A Review.

Over the last decade, research has intensified worldwide on the use of low-temperature plasmas in medicine and healthcare. Researchers have discovered many methods of applying plasmas to living tissues to deactivate pathogens; to end the flow of blood without damaging healthy tissue; to sanitize wounds and accelerate its healing; and to selectively kill malignant cancer cells. This review paper presents the latest development of advanced and plasma-based technologies used for applications in neurology in particular. Institute for Plasma Research (IPR), an aided institute of the Department of Atomic Energy (DAE), has also developed various technologies in some of these areas. One of these is an Atmospheric Pressure Plasma Jet (APPJ). This device is being studied to treat skin diseases, for coagulation of blood at faster rates and its interaction with oral, lung, and brain cancer cells. In certain cases, in-vitro studies have yielded encouraging results and limited in-vivo studies have been initiated. Plasma activated water has been produced in the laboratory for microbial disinfection, with potential applications in the health sector. Recently, plasmonic nanoparticle arrays which allow detection of very low concentrations of chemicals is studied in detail to allow early-stage detection of diseases. IPR has also been developing AI-based software called DeepCXR and AIBacilli for automated, high-speed screening and detection of footprints of tuberculosis (TB) in Chest X-ray images and for recognizing single/multiple TB bacilli in sputum smear test images, respectively. Deep Learning systems are increasingly being used around the world for analyzing electroencephalogram (EEG) signals for emotion recognition, mental workload, and seizure detection.

Инновации в области использования низкотемпературной плазмы в промышленности и в социальной сфере (2019-2020 гг.)

Инновации в области использования низкотемпературной плазмы в промышленности и в социальной сфере (2019-2020 гг.)

LOW-TEMPERATURE PLASMA -A PROMISING METHOD OF REHABILITATION

Low-temperature plasma is a partially ionized gas obtained at atmospheric pressure and having a macroscopic temperature close to the ambient temperature. The composition of the torch of low-temperature plasma includes charged particles, neutral active particles, including free radicals and particles in metastable states, as well as ultraviolet radiation. The biological effects of plasma are associated with the synergistic effect of the listed factors, each of which has a subliminal concentration that does not cause changes in the biological object. Intensive research on the use of low-temperature plasma in medicine began about 10 years ago, although some pioneering work appeared much earlier, mainly in Russia. Since the mid-2000s. in the world began to actively develop sources of gas plasma, in which the temperature of the plasma torch is reduced to the temperature of the human body. The use of such structures makes it possible to subject the treated surface to direct plasma action and to use the entire spectrum of active plasma components, including photons, electrons, ions, free radicals, and molecules in an excited state. Low-temperature plasma has a number of fundamental advantages, which include high non-specific bactericidal activity, low probability of occurrence of stable forms, the absence of ionizing radiation and highly toxic substances. The described advantages together with a comfortable temperature, relative simplicity and low cost methods, the lack of specific requirements for the treated surface make low-temperature plasma a promising method for the treatment of various pathological conditions.

Stabilization of Supersonic Combustion of Propane in an Expanding Aerodynamic Channel with the Use of Low-Temperature Plasma

Under the conditions of a nonstationary pulsating longitudinal-transverse discharge produced in a supersonic cold (T = 175 K) air flow, the combustion of a propane–air mixture has been stabilized. It has been shown that the completeness of propane combustion after stabilization under the conditions of low-temperature plasma amounts to about 95%. The combustion occurs at a flame temperature of 1800–2000 K. A propulsion thrust of about 55 N has been obtained the course of an experiment with plasma-assisted combustion of propane in an expanding channel with a length of 50 cm and a ratio of the inlet and outlet cross sections of S2/S1 = 12.7 at mass flow rates of 105 and 4.9 g/s for air and propane, respectively. This shows good agreement with the value of 60 N calculated under the conditions of complete propane burning.

Analysis of Oilfield Wastewater Treatment Effect Based on Low Temperature Plasma Treatment Process

In order to study the effect of different low temperature plasma treatment technology on the oil field's abolishment, the influence of low temperature plasma discharge frequency, scale inhibitor and the combined application of low temperature plasma and scale inhibitor on the quality of heavy oil wastewater and distilled water was analysed. When the discharge frequency of low temperature plasma was 900s-1, the decrease of oil content was 50.56%. The scale inhibitor also reduced the oil content of the heavy oil wastewater and the distilled water. However, the combined use of low temperature plasma and scale inhibitor would increase the content of oil and the content of metal ions in distilled water. The increase of oil content was 56%. The results showed that the low temperature plasma had obvious effect on reducing the oil content and SiO2 content in distilled water. Therefore, this study confirms the influence and mechanism of low-temperature plasma treatment on the quality of oil field wastewater.

Formation of the hydrophobic coating on polymeric textile materials in nonequilibrium low-temperature plasma

The use of low-temperature plasma for drawing a hydrophobic coating among argon-acetylene (70:30) on polyether textile materials is investigated in work. As a result of the modification, a granular coating with a thickness of 5–10 μm is formed. This hydrophobic covering has allowed to increase values of a contact angle of wetting to 138 degrees.

MODIFICATION OF TRACK-ETCHED MEMBRANES BY LOW-TEMPERATURE PLASMA

Published data appearing in the last decade on the modification of track-etched membranes with the use of low-temperature plasma are considered. Some schematic description of setups and methods for sample processing in discharges of various types in atmosphere of non-polymerizing gases and by plasma polymerization, also by using of such plasma-chemical methods as magnetron sputtering of polymer targets and electron-beam dispersion of polymers in vacuum are presented. Some modern physicochemical methods for studying of changes occurring on the surface of membranes are described. Some typical examples of changes in the contact properties of the track-etched membrane surface and their chemical composition by means of X-ray photoelectron spectroscopy and Fourier-IR spectroscopy are given. Using the methods of atomic force microscopy and electron microscopy, some examples of morphological changes occurring on the surface of track membranes and in the volume of pores are presented. It is shown that the modification of track membranes by low temperature plasma leads to the creation of “smart” membranes, which possess some unique properties. This allows to significantly expand the areas of their application. Modified membranes can be used as thermosensitive elements and mechanochemical membranes with a “chemical valve”.The plasma treatment allows also significantly change the biocompatibility of the surface of track-etched membranes and use them in medicine and biology. By means of some special techniques, studies of the adsorption and growth of cellular and biological structures on the surface of modified track-etched membranes are presented.The possibility of the modified track membranes using as a highly effective biocompatible drainage material in the surgical treatment of refractory glaucoma, as well as implants in the treatment of bullous keratopathy is shown.Forcitation:Kravets L.I.,Gilman A.B. Modification of track-etched membranes by low-temperature plasma. Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2018. V. 61. N 4-5. P. 4-30