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АТОМИСТИЧЕСКОЕ КОМПЬЮТЕРНОЕ МОДЕЛИРОВАНИЕ ГИДРОКАЛЮМИТА КАК АДСОРБЕНТА РАДИОАКТИВНЫХ АНИОНОВ ИЗ ВОДНЫХ РАСТВОРОВ
Russian Journal of Physical Chemistry A. 2022. Т. 96. № 4. С. 535–537.
Results are presented from atomistic computer modeling of hydrocalumite (cement AFm-phase) with Cl− and I− anions in the interlayer space as a potential adsorbent of radionuclides 36Cl, 129I, 137Cs. Properties of the crystals themselves and the interaction between aqueous solutions of CsCl and CsI and surfaces of crystalline phases are studied. It is shown the adsorption of Cl− is stronger than that of I− on surfaces of hydrocalumite, which can be explained by the difference in ionic radii of hydrated anions.
Keywords: молекулярная динамикаmolecular dynamicsAdsorptionАдсорбцияhydrocalumiteaqueous solutions of CsCl and CsIГИДРОКАЛЮМИТВОДНЫЕ РАСТВОРЫ CsCl И CsI
Publication based on the results of:
Ponomarev A., Aleksandrov N., Plasma Physics Reports 2026 Vol. 52 No. 3 P. 367–378
An approximate method for calculating drift velocity and other kinetic coefficients of heavy ions
in a light gas is generalized to gaseous mixtures. Obtained equations are used to calculate the mobilities of
and ions, as well as rate constants for inelastic ion–molecule processes with these ions in helium with
small additions of O2 under an electric field. Calculated ...
Added: April 27, 2026
Domrin V. I., Malova H. V., V. Yu. Popov et al., Cosmic Research 2026 Vol. 64 No. 2 P. 238–252
During magnetospheric perturbations a relatively thin current sheet with thickness about several
proton gyroradii forms in the Earth’s magnetotail. In a framework of the kinetic model describing current
sheet thinning in the magnetotail, the processes of its formation are investigated depending on the normal
magnetic field magnitude which affects both the current sheet structure and particle dynamics within ...
Added: April 27, 2026
Tsareva O. O., Malova H. V., V. Yu. Popov et al., Plasma Physics Reports 2026 Vol. 52 No. 2 P. 179–185
The influence of asymmetry of plasma sources on the structure and spatial localization of a superthin
current sheet (STCS) supported by demagnetized electrons is studied using a self-consistent model. The
simulation takes into account the presence of a single plasma source in the northern hemisphere, which
makes the plasma flow asymmetric. It is demonstrated that the asymmetry of ...
Added: April 27, 2026
П.А.Беспалов, О.Н. Савина, Геомагнетизм и аэрономия 2025 Т. 65 № 5 С. 620–628
Several basic models of frequency dynamics in quasi-periodic VLF emissions with spectral form repetition
periods from 10 to 300 s are considered. In all cases, we are talking about manifestations of cyclotron instability
of electron radiation belts thet are well described within the framework of the plasma magnetospheric maser
theory based an the averaged self-consistent system of quasi-linear ...
Added: April 25, 2026
Bondarenko G.G., Fisher M. R., Kristya V. I., Bulletin of the Russian Academy of Sciences: Physics 2026 Vol. 90 No. 4 P. 572–576
A model of the cathode layer of a glow gas discharge with a thin dielectric film on a fraction of the
cathode’s working surface is formulated. It is shown that a glow discharge most rapidly transits to an arc discharge,
accompanied by a significant increase in discharge current density and a decrease in cathode voltage
drop, if the ...
Added: April 25, 2026
Krasnov L., Malikov D., Kiseleva M. et al., Journal of Medicinal Chemistry 2026 Vol. 69 No. 8 P. 8838–8851
In this work, we developed a straightforward data-driven approach to predict the cytotoxicity of metal complexes based entirely on their (metal + ligands) composition. To this end, we have manually curated MetalCytoToxDB─a comprehensive experimental database comprising 26,500 IC50 values for 7050 metal complexes against 754 cell lines from 1921 articles. Based on these, machine learning ...
Added: April 23, 2026
Novikov A., Inorganic Chemistry Communications 2026 Article 116670
The reaction of copper(I) phenylacetylide [PhC ≡ CCu]n with the 2-pyridylphosphines (tBu2PyP and Ph2PyP) offers a straightforward route to structurally diverse clusters. With tBu2PyP, a trinuclear cluster [Cu3(C ≡ CPh)3(tBu2PyP)3] featuring a Cu3 triangular was isolated. Surprisingly, the reaction of [PhC ≡ CCu]n with Ph2PyP yields two isomeric clusters [Cu4(C ≡ CPh)4(Ph2PyP)4] with tetrahedral or zigzag-arranged Cu4 cores. Upon prolonged storage in acetonitrile, the tetrahedral Cu4 cluster converts to ...
Added: April 22, 2026
Zadkov V., Plasmonics 2026 Vol. 21 P. 1503–1512
Plasmonic nanostructures typically exhibit shifts in their resonant wavelength in response to changes in the refractive index of the surrounding medium. This limits their applications in scenarios requiring stable optical resonances. Here we present a metallic-dielectric hybrid metasurface that exhibits stable multi-wavelength resonance even if the refractive index of its surrounding varies. To quantitatively evaluate the stability of ...
Added: April 22, 2026
Kopoleva E., Sergey A. Tsymbal, Kuchur O. et al., Drug Delivery and Translational Research 2026 P. 1–16
Multidrug resistance (MDR) remains one of the principal challenges in cancer chemotherapy, necessitating new strategies to restore drug efficacy. In this study we developed and characterize a redox-responsive nanoplatform based on trithiocyanuric acid and polyethylene glycol (TTCA-PEG NPs) as a potential tool to overcome MDR and provide a biocompatible delivery system for conventional antitumor drugs. ...
Added: April 20, 2026
Shchur L., Antonov D., Burovski E., International Journal of Bifurcation and Chaos in Applied Sciences and Engineering 2026 P. 1–9
We present a simple model that simulates the possible influence of one society on another. Specifically, two societies evolve deterministically according to the well-known Nowak-May spatial game with the addition of mutual influence through connections that reflect the current states of the societies. This may be related to the influence of a global information resource ...
Added: April 20, 2026
Qin X., Deng Y., Shchur L. et al., / Series arXiv "math". 2026. No. 2603.02962.
We perform a Monte Carlo analysis of the Ising model on many three-dimensional lattices. By means of finite-size scaling we obtain the critical points and determine the scaling dimensions. As expected, the critical exponents agree with the three-dimensional Ising universality class for all models. The irrelevant field, as revealed by the correction-to-scaling amplitudes, appears to ...
Added: April 20, 2026
Pilé I., Deng Y., Shchur L., / Series arXiv "math". 2026. No. 2604.10254.
We investigate the spatial overlap of successive spin configurations in Markov chain Monte Carlo simulations using the local Metropolis algorithm and the Svendsen-Wang and Wolff cluster algorithms. We examine the dynamics of these algorithms for two models in different universality classes: the Ising model and the Potts model with three components. The overlap of two ...
Added: April 20, 2026
Novikov A., Russian Journal of Organic Chemistry 2026 Vol. 62 Article 12
The dipolar [3+2]-cycloaddition reactions of 3-aroylpyrrolo[2,1-c][1,4]benzothiazine-1,2,4-triones with diarylnitrones lead to the formation of benzo[b]isoxazolo[5',4':2,3]pyrrolo[1,2-d][1,4]thiazines. The reac- tion proceeds stereoselectively to form exclusively the (2aS*,3R*,5aS*) diastereomers. Density functional theory computations for the model reaction showed that the (2aS*,3R*,5aS*) diastereomers are both kinetically and thermodynamically preferred over the alternative (2aS*,3S*,5aS*) diastereomers. At room temperature in solution, the ...
Added: April 19, 2026
Makarov D. M., Kalikin N., Gurikov P. et al., Journal of Supercritical Fluids 2026 Vol. 235 Article 106979
Supercritical CO2 (scCO2 ) is an environmentally friendly solvent, but its low polarity limits the solubility of polar compounds. Cosolvents are commonly used to enhance solvation capability, yet comprehensive datadriven studies are scarce. We compiled the largest dataset to date — 4401 experimental solubility records with 22 cosolvents for 93 nonionic solutes, plus 4855 records ...
Added: April 19, 2026
Kalikin N., Брандышев П. Е., Budkov Y., Journal of Chemical Physics 2026 Vol. 164 Article 154904
This study presents a mean-field theory for zwitterionic polymer solutions confined within attractive slit-like nanopores. Building upon our prior model for self-coacervation [Budkov et al., Soft Matter 19, 3281–3289 (2023)], we demonstrate that strong electrostatic dipole–dipole correlations between monomeric units, coupled with attraction to pore walls, can induce capillary-driven liquid–liquid phase separation inside the pore—a ...
Added: April 18, 2026
B.V. Andryushechkin, Denisenkov V. S., Komarov N. S. et al., Surface Science 2025 Vol. 760 Article 122769
Adsorption of iodine on Ag(110) has been studied in ultra high vacuum with room temperature scanning tunneling microscopy (STM) and low energy electron diffraction (LEED) in combination with density functional theory (DFT) calculations. It was found that at low coverages iodine forms structure. Further adsorption of iodine leads to compression of atoms in the troughs along direction and formation of domain walls separating domains. As ...
Added: February 17, 2026
Tararushkin E., Ruban A., Bu H. et al., Journal of Molecular Liquids 2026 Vol. 448 Article 129359
This study investigates the molecular mechanisms governing ammonium interactions with glauconite, a potassium- and iron-rich phyllosilicate, focusing on the structure and dynamics of aqueous NH4NO3 solutions confined at mineral interfaces. Glauconite-ammonium nanocomposites (GANs) were prepared with varying ammonium concentrations and characterized by X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, scanning electron microscopy, Brunauer-Emmett-Teller method, ...
Added: February 9, 2026
Mikhail R. Samatov, Liu D., Emir S. Amirov et al., The Journal of Physical Chemistry Letters 2025 Vol. 16 No. 51 P. 13068–13074
Ion migration at grain boundaries (GBs) is a key issue leading to the performance degradation of metal halide perovskites (MHPs). Given the weak lattice interactions, the properties of MHPs are highly sensitive to external strain, which is inevitable in practical applications. Nevertheless, a fundamental understanding of the GB behavior under strain is still lacking. Using ...
Added: December 20, 2025
Babicheva R., Kumar A., Kiran R. et al., Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 2025 Vol. 56 P. 5646–5663
In the work, simulations using Monte Carlo (MC) and molecular dynamics (MD) methods are carried out to investigate the Nb–Ta–Hf–Zr system refractory high-entropy alloys (HEAs). In particular, the effects of chemical composition and grain boundary (GB) network on short-range ordering (SRO) during combined MC/MD modeling of relaxation mimicking diffusion process are investigated on single-crystalline and ...
Added: November 27, 2025
Aliper E., Ryzhov I., Obukhova P. et al., Biochimica et Biophysica Acta - Biomembranes 2026 Vol. 1868 No. 1 Article 184472
Antibodies to peptide 1147 (amino acids 1147-61) of the SARS-CoV-2 protein S are highly diagnostic. Peptide 1147, although located in a region that is partly spatially hidden in the intact protein, is not subject to mutations, suggesting therapeutic potential. The aim of this study was to elucidate the architecture of this region and the way ...
Added: October 20, 2025
Volynsky P., Urban A., Pavlov K. et al., International Journal of Molecular Sciences 2025 Vol. 26 No. 2 Article 553
Alzheimer’s disease (AD) pathogenesis is correlated with the membrane content
of various lipid species, including cholesterol, whose interactions with amyloid precursor
protein (APP) have been extensively explored. Amyloid-β peptides triggering AD are
products of APP cleavage by secretases, which differ depending on the APP and secretase location
relative to ordered or disordered membrane microdomains. We used high-resolution
NMR to probe ...
Added: October 12, 2025
Ustinov A., Гузев М. А., Дальневосточный математический журнал 2016 Т. 16 № 1 С. 39–43
We use the number theory methods for explicit calculation of a static stress field in the system of a 1D chain harmonic oscillators. The sums defining stress field are presented in terms of Korobov polynomials for arbitrary number of oscillators and arbitrary averaging scale. ...
Added: October 9, 2025
Nesterova I., Kondratyuk N., Budkov Y. et al., Advances in Colloid and Interface Science 2025 Vol. 346 Article 103623
Room temperature ionic liquids show great promise as electrolytes in various technological applications, such as energy storage or electrotunable lubrication. These applications are particularly intriguing due to the specific behavior of ionic liquids in nanoconfinement. While previous research has been focused on optimizing the required characteristics through the selection of electrolyte properties, the contribution of ...
Added: September 2, 2025
Kashurin O., Deshchenya V., Kondratyuk N., Fluid Phase Equilibria 2025 Vol. 589 Article 114244
The shear viscosity of organic liquids is very important for industrial applications. This paper focuses on the blind prediction of concentration-viscosity dependencies for organic mixtures at 298.15 K and 1 bar using molecular dynamics methods. Two mixtures are considered: tributyrin+1-decanol and 1,2-butanediol+1-decanol. The interatomic interactions are described using the COMPASS force field, which is modified ...
Added: August 12, 2025