A5007336710- Dust and Plasma Wave Phenomena
- Ionosphere and magnetosphere dynamics
- Earthquake Detection and Analysis
- High-pressure geophysics and materials
- Laser-induced spectroscopy and plasma
- Particle Dynamics in Fluid Flows
- Plasma Diagnostics and Applications
- Cold Atom Physics and Bose-Einstein Condensates
- Micro and Nano Robotics
- Solar and Space Plasma Dynamics
- Plasma Applications and Diagnostics
- Astro and Planetary Science
- Advanced Thermodynamics and Statistical Mechanics
- Electrohydrodynamics and Fluid Dynamics
- Quantum, superfluid, helium dynamics
- Vacuum and Plasma Arcs
- Magnetic confinement fusion research
- Advanced biosensing and bioanalysis techniques
- Granular flow and fluidized beds
- Planetary Science and Exploration
- MicroRNA in disease regulation
- Laser-Ablation Synthesis of Nanoparticles
- Quantum Electrodynamics and Casimir Effect
- nanoparticles nucleation surface interactions
- Statistical Mechanics and Entropy
Joint Institute for High Temperatures
2016-2025
Moscow Institute of Physics and Technology
2013-2024
Moscow Power Engineering Institute
2020-2023
Moscow Aviation Institute
2020-2023
Plasma (Russia)
2021-2023
HUN-REN Wigner Research Centre for Physics
2022
Institute for Solid State Physics and Optics
2022
Baylor University
2014-2022
Auburn University
2019-2022
Gagarin Research and Test Cosmonaut Training Center
2022
Non-thermal (low-temperature) physical plasma is under intensive study as an alternative approach to control superficial wound and skin infections when the effectiveness of chemical agents weak due natural pathogen or biofilm resistance. The purpose this was test individual susceptibility pathogenic bacteria non-thermal argon measure treatments against in biofilms on surfaces. Overall, Gram-negative were more susceptible treatment than Gram-positive bacteria. For Pseudomonas aeruginosa,...
An experimental determination of particle charge in a bulk dc discharge plasma covering wide range neutral gas pressures, was recently reported [S. Ratynskaia, Phys. Rev. Lett. 93, 085001 (2004)]. The charges obtained were several times smaller than the predictions collisionless orbital motion limited theory. This discrepancy attributed to effect ion-neutral collisions. In present paper more detailed description this experiment is provided and additional results with particles different...
The plasma crystal experiment PKE-Nefedov, the first basic science on International Space Station (ISS), was installed in February 2001 by permanent crew. It is designed for long-term investigations of complex plasmas under microgravity conditions. `Complex plasmas' contain ions, electrons, neutrals and small solid particles - normally micrometre range. These microparticles obtain thousands elementary charges interact with each other via a `screened' Coulomb potential. Complex are special...
PK-3 Plus is the second-generation laboratory for investigation of complex plasmas under microgravity conditions on International Space Station (ISS). It has more advanced hardware, software and diagnostics than its precursor PKE-Nefedov (Nefedov et al 2003 New J. Phys. 5 33). The first experiments with show perfect functioning apparatus provide much better insights into properties plasmas. In particular, 'void' in center plasma cloud can now be easily closed, thus providing a homogeneity...
The charge of dust particles is determined experimentally in a bulk dc discharge plasma the pressure range 20--100 Pa. obtained by two independent methods: one based on an analysis particle motion stable flow and another transition to unstable regime. Molecular-dynamics simulations charging for conditions similar those experiment are also performed. results both experimental methods demonstrate good agreement. several times smaller than predicted collisionless orbital theory, thus serve as...
New complex-plasma facility, Plasmakristall-4 (PK-4), has been recently commissioned on board the International Space Station. In complex plasmas, subsystem of μm-sized microparticles immersed in low-pressure weakly ionized gas-discharge plasmas becomes strongly coupled due to high (103-104 e) electric charge microparticle surface. The is available for observation at kinetic level, which makes appropriate particle-resolved modeling classical condensed matter phenomena. main purpose PK-4...
Magnetic levitational bioassembly of three-dimensional (3D) tissue constructs represents a rapidly emerging scaffold- and label-free approach alternative conceptual advance in engineering. The magnetic bioassembler has been designed, developed, certified for life space research. To the best our knowledge, 3D have biofabricated first time under microgravity from spheroids consisting human chondrocytes. Bioassembly sequential spheroid fusion presented good agreement with developed predictive...
Scaffolding is the conceptual framework of conventional tissue engineering. Over past decade, scaffold-free approaches as a potential alternative to classic scaffold-based methods have emerged, and magnetic levitational engineering (magnetic force-based [Mag-TE]) type this novel strategy. However, Mag-TE often based on use potentially toxic nanoparticles. Scaffold-free label-free bioassembly do not employ nanoparticles thus, toxicity can be avoided. In short review, we describe foundation...
An observation of low frequency waves spontaneously excited in a dc glow discharge dusty plasma is reported. To analyze possible reasons for the instability observed, linear dispersion relation which takes into account collisions with neutrals, dust grain charge variations, ion drift, and forces acting on particles derived. Numerical analysis shows that observed result variations presence external charge-dependent together drift effect.
Tissue spheroids have been proposed as building blocks in 3D biofabrication. Conventional magnetic force-driven 2D patterning of tissue requires prior cell labeling by nanoparticles, meanwhile a label-free approach for levitational assembly has introduced. Here we present first time report on rapid construct using scaffold-free, nozzle-free and levitation spheroids. Chondrospheres standard size, shape capable to fusion biofabricated from primary sheep chondrocytes non-adhesive technology....
Random charge fluctuations are always present in dusty plasmas due to the discrete nature of currents charging dust particle. These can be a reason for heating particle system. Such unexpected leading melting crystals was observed recently several experiments. In this paper we show by analytical evaluations and numerical simulation that provide an effective source energy heat particles up eV, conditions close experimental ones.
Dust particle ordering is discussed in various types of low-temperature plasma, such as thermal plasmas at atmospheric pressure, dc glow discharges, and UV-induced plasmas. Experimental data numerical simulation results are presented. Properties ordered structures the conditions formation considered.
Phase behavior of large three-dimensional (3D) complex plasma systems under microgravity conditions onboard the International Space Station is investigated. The neutral gas pressure used as a control parameter to trigger phase changes. Detailed analysis structural properties and evaluation three different melting-freezing indicators reveal that plasmas can exhibit melting by increasing pressure. Theoretical estimates parameters allow us identify main factors responsible for observed...
A self-consistent model of plasma polarization around an isolated micron-sized dust particle under the action external electric field is presented. It shown that quasineutral condition fulfilled and formed volume charge totally screens particle. The ion focusing wake formation behind are demonstrated for different mean free paths fields. obtained at low values trapped ions play main role in screening charge. For high fields, density decreases screened mainly by ions.
Abstract We present a detailed analysis of experimental study, which shows clear evidence two-stage melting process quasi-two-dimensional dusty plasma system in high-frequency gas discharge. accurately calculated global parameters the orientational and translational order, as well their susceptibilities to determine two critical points, related “solid-to-hexatic” “hexatic-to-liquid” phase transitions. The nature emerging defects changes mutual concentration, addition estimate core energy...
Abstract Low‐pressure gas discharge plasmas are known to be strongly affected by the presence of small dust particles. This issue plays a role in investigations particle‐forming plasmas, where dust‐induced instabilities may affect properties synthesized Also, discharges with large amounts microparticles used microgravity experiments, coupled subsystems charged represent particle‐resolved models liquids and solids. In this field, deep understanding dust–plasma interactions is required...
Experimental data on the active Brownian motion of single particles in RF (radio-frequency) discharge plasma under influence thermophoretic force, induced by laser radiation, depending material and type surface particle, are presented. Unlike passive particles, also known as micro-swimmers, move directionally. It was shown that different dust gas can convert energy a surrounding medium (laser radiation) into kinetic motion. The movement particle is superposition chaotic self-propulsion.
The locomotion of droplets in emulsions is practical significance for fields related to medicine and chemical engineering, which can be done with a magnetic field move containing materials. Here, we demonstrate new method droplet the oil-in-water emulsion help nonuniform case where nanoparticles (MNPs) are dispersed continuous phase emulsion. paper analyses motion liquid film capillary various diameters droplets, their number density, viscosity It established that mechanism largely depends...
Overdamped active Brownian motion of self-propelled particles in a liquid has been fairly well studied. However, there are variety situations which the overdamped approximation is not justified, for instance, when move low-viscosity medium or their rotational diffusivity enhanced by internal processes external control. Examples various origins include biofilaments driven molecular motors, living and artificial microflyers interfacial surfers, field-controlled superfluid microswimmers,...
An analysis of lattice wave spectra in a three-dimensional dusty plasma structure formed direct current gas discharge with alternating polarity under microgravity conditions is reported. The are determined using the Fourier transform microparticle velocities, measured by tracking microparticles subpixel resolution. Both longitudinal and transverse modes detected analyzed. absence "k-gap" long-wavelength domain mode strongly suggests that form solid structure. Therefore, experimental compared...