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Doxorubicin compositions with biocompatible terpolymer of N-vinylpyrrolidone, methacrylic acid and triethylene glycol dimethacrylate
Mendeleev Communications. 2023. Vol. 33. P. 255–258.
Курмаз С. В., Иванова И., Емельянова Н. С., Конев Д. В., Курмаз В. А., Филатова Н. В., Балакина А. А., Terentiev A.
Compositions of doxorubicin with a terpolymer of N-vinylpyrrolidone, methacrylic acid and triethylene glycol dimethacrylate have been prepared and investigated by UV-VIS and NMR spectroscopy, cyclic voltammetry and DFT quantum chemical modeling. Oxygen containing groups of the terpolymer and hydrogen atoms of the drug OH and NH3+ groups form hydrogen bonds. The compositions have lower cytotoxicity in vitro compared with that of free doxorubicin.
Temereva E., Zoologischer Anzeiger 2026 Vol. 325 P. 182–195
Brachiopoda is a group of animals, that is still insufficiently studied at the ultrastructural level, despite the significance of ultrastructure of tissues and organs for analysing the functional morphology, reconstructing the organisation and biology of numerous extinct brachiopods, and establishing relationships among major taxa. In the present study, we provide a revised reconstruction of the ...
Added: October 11, 2026
Shi R., Yu Y., Chibisov A., International Journal of Hydrogen Energy 2025 Vol. 107 P. 52–62
Cyanide containing wastewater can cause livestock death and reduce agricultural production and electrochemical reduction of cyanide (CNRR) is a promising way to eliminate its harm and turn waste into valuable products. However, the reaction mechanism and function of electrocatalysts for CNRR have not been fully understood yet. Herein we identify a two-dimensional (2D) conductive copper-organic ...
Added: October 11, 2026
Ekaterina D. Riumina, Klink G. V., Alekseeva E. et al., PNAS, США 2026 Vol. 123 No. 35 P. 1–20
The role of escape from the cytotoxic T cell (CTL) response in SARS-CoV-2 evolution remains controversial. Here, we study the origin and spread of SARS-CoV-2 variants whose mutations reduce presentation by the HLA class I alleles common in human populations. We find that 35% of mutations that are characteristic of the variants of concern, and ...
Added: October 2, 2026
Zhukov A., Chen F., Zeng Y. et al., Nanoscale 2026 Vol. 18 No. 36 P. 19223–19253
Colloidal semiconductor nanocrystals have emerged as promising materials for next-generation light-emitting diodes (LEDs) owing to their solution processability, tunable emission wavelengths, narrow emission linewidths, and high photoluminescence quantum yields. Among them, anisotropic nanocrystals, including one-dimensional nanorods (NRs) and two-dimensional nanoplatelets (NPLs), offer additional opportunities for controlling transition dipole moment orientation and light out-coupling efficiency. These ...
Added: October 2, 2026
Мальцева В. Е., Ananyev I., Milevskii N. et al., Molecular Systems Design and Engineering 2026 Vol. 11 No. 7 P. 691–704
The use of hydrophobic deep eutectic solvents (DESs) as extractants for metal ion separation is largely due to the ease of their preparation and the possibility of modifying them depending on the composition of the metal mixture to be separated. However, the most common approach to DES modification involves the replacement of the extractant, while ...
Added: October 2, 2026
Мальцева В. Е., Ananyev I., Golubev A. V. et al., Russian Journal of Inorganic Chemistry 2026 Vol. 71 P. 724–736
Two voluminous polymer silver(I) salts of perchlorinated dodecoborate clusters, {[(Me2CO)Ag(μ-Me2CO)2Ag(Me2CO)][μ-B12Cl12]}n (1) and {[DMFAg(μ-DMF)2AgDMF][μ-B12Cl12]}n (2) were synthesized. The 35Cl nuclear quadrupole resonance (NQR) spectroscopy supplemented with the X-ray diffraction data was applied for identifying and analyzing noncovalent interactions Cl···X in these salts. Whereas in X-ray diffraction, noncovalent interactions are associated with the presence of the shortened ...
Added: October 2, 2026
Мальцева В. Е., Rozhkov A., Ananyev I. et al., Inorganic Chemistry 2026 Vol. 65 No. 22 P. 12484–12496
Despite the well-established importance of chalcogen bonding in crystal engineering and supramolecular chemistry, experimental charge density data for TeII-centered chalcogen bonds have remained entirely absent, leaving the electronic nature of these interactions uncharacterized at the level of directly measured electron density. Here, we report the first high-resolution X-ray diffraction (HRXRD) study of TeII-centered chalcogen bonds, ...
Added: October 2, 2026
Aly Ismailov, Poptsova M., Plos One 2026 Vol. 21 No. 9 Article e0355902
Added: October 2, 2026
Ostovari Moghaddam A., Mehrabi-Kalajahi S., Solizoda I. A. et al., Metals and Materials International 2026 P. 1–9
Off-stoichiometric boron-doped chemically complex intermetallic alloys (CCIMAs) have recently emerged as a new avenue for overcoming the low temperature brittleness of ordered superlattices. However, their behavior at high temperatures remains unexplored. In this study, a novel (Ni39.6Co29.3Cr10Al15.8Ta3.3Nb2)98.5B1.5 CCIMA was prepared and its oxidation resistance over a wide temperature range (500 °C–950 °C) was studied. The ...
Added: October 1, 2026
Knyazev E., Чеботарева О. Е., М.: Издательский дом НИУ ВШЭ, 2026.
This teaching and learning guide provides a concise overview of the theoretical and practical aspects of the basic skills required to work in a biological laboratory. It also includes protocols for practical classes conducted as part of the introductory professional training placement for first-year students in the Bachelor’s programme in Cell and Molecular Biotechnology at ...
Added: September 30, 2026
Ryskina H., Knyazev E., Вопросы биологической, медицинской и фармацевтической химии 2026 Т. 29 № 9 С. 84–91
Introduction. The active integration of rapidly developing omics and computer technologies in the 21st century has led to a breakthrough in understanding the principles of the functioning of living systems. One of the dynamically developing integrative areas in biology is biological modeling. The fundamental paradigm has been the methodology that allows for the prediction of ...
Added: September 29, 2026
Kashpurovich I., Oleynichenko A., Stegailov V., Supercomputing Frontiers and Innovations 2026 Vol. 13 No. 1 P. 52–73
We report a high-performance implementation of the resolution-of-the-identity Hartree–Fock method that fully exploits the permutational symmetry of three-center electron repulsion integrals (ERI). The present implementation adopts a hybrid MPI+OpenMP parallelization strategy. Two different algorithmic approaches (with and without the pre-transformation of ERIs) are compared. A custom data layout introduced previously is employed. Designed to efficiently ...
Added: September 28, 2026
Li Y., Han J., Zaman N. et al., ACS Applied Materials & Interfaces 2026 Vol. 18 No. 39 P. 54241–54251
The development of lead sulfide (PbS) quantum dot (QD) photodetectors for short-wave infrared (SWIR) applications has been fundamentally limited by the thermodynamic instability of large PbS QD facets, which leads to aggregation and epitaxial fusion. In this work, robust thermodynamic stabilization was achieved by introducing methylammonium chloride (MACl) in PbS QD surface passivation, as validated ...
Added: September 26, 2026
Gureev M., Advanced Science 2026 P. 1–13
Targeted protein degradation represents a promising therapeutic strategy, yet its broader application is often limited by the scarcity of usable E3 ligases. Glutathione peroxidase 4 (GPX4) is a key target for inducing ferroptosis, but achieving sustained and potent inhibition remains challenging with conventional enzymatic inhibitors. Herein, we report the first small‐molecule GPX4 degraders that incorporate ...
Added: September 26, 2026
Budkov Y., Kiselev M. G., Journal of Chemical Physics 2026 Vol. 165 No. 12 Article 124508
We develop a three-mode statistical-mechanical theory for a two-conformer
solute in a near-critical solvent. A compressible lattice model with
vacancies yields the Gaussian free-energy functional for a critical conserved
density, an orthogonal noncritical conserved mode, and the local conformer
fraction. Their couplings follow from packing and cohesive interactions,
rather than being introduced phenomenologically. Kawasaki transport of the
two conserved fields and ...
Added: September 24, 2026
Yurova P., Stenina I., Yaroslavtsev A. B., Membranes and Membrane Technologies 2026 Vol. 8 No. 1 P. 1–8
In this work, the effect of applying layers of polyethyleneimines with different molecular weights
(1300 and 25000 Da), polystyrene sulfonic acid or sodium polyacrylate on the surface of the heterogeneous
membrane MK-40 on the selectivity to singly charged ions was investigated. It is shown that the modification
leads to an increase in the selectivity coefficients P(Na+/Ca2+) and P(Li+/Mg2+), ...
Added: September 24, 2026
Diachkova E., Nikulin D., Кубкин Я. В. et al., American Journal of Respiratory and Critical Care Medicine 2026 Vol. 212
Accurate classification of a patient with pulmonary hypertension (PH) into one of five groups is fundamental for appropriate disease management strategies. The time from disease onset to correct diagnosis is unacceptably long in many cases. Chronic thromboembolic pulmonary hypertension (CTEPH) develops as a consequence of venous thromboemboli, resulting in a more pronounced hereditary predisposition to ...
Added: September 23, 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
Toukach P., Arakelyan L. A., Egorova K. S. et al., Environmental Science and Technology Letters 2025 Vol. 12 No. 12 P. 1631–1635
Ionic liquids (ILs) are widely used in diverse scientific and industrial fields, yet many of these substances exhibit significant cytotoxicity, challenging their classification as “green solvents”. To facilitate access to established experimental cytotoxicity data on ILs, we present ILToxDB - a curated, open-access database containing 3844 cytotoxicity assay entries for 1224 ILs tested across 154 ...
Added: February 17, 2026
Kovanova M. A., Derbeneva P. D., Postnov A. S. et al., Russian Journal of Electrochemistry 2024 Vol. 60 No. 6 P. 429–434
The electrochemical and electrocatalytic behavior of gold electrodes modified with tetra-4-sulfophthalocyaninates of nickel(II) (NiPc) and copper(II) (CuPc) is studied in aqueous alkaline solutions using cyclic voltammetry. The electrocatalytic activity of phthalocyaninates of these metals in the oxidation of hydroxide ions to form molecular oxygen is assessed and compared with the literature data. ...
Added: September 16, 2025
Kovanova M. A., Postnov A. S., A. S. Vashurin, Russian Journal of Physical Chemistry A 2024 Vol. 98 No. 6 P. 1318–1321
The electrochemical properties of vitamin B6 have been studied. Its analytical signal was obtained using a gold electrode modified with cobalt(II) tetra-4-sulfophthalocyaninate. The optimum experimental conditions were determined. A technique for immobilizing the modifier on the surface of the gold electrode is proposed. The mechanism of vitamin B6 oxidation on the electrode was examined. ...
Added: September 16, 2025
Novikova V. O., Emel’yanova N. S., Pokidova O. V. et al., Russian Chemical Bulletin 2024 Vol. 73 No. 4 P. 957–964
The reaction between binuclear nitrosyl iron complex (NIC) with thiosulfate ligands Na2[Fe2(S2O3)2(NO)4]•4H2O (1) and reduced glutathione (GSH) was studied. Using experimental and theoretical methods including UV spectroscopy, Griess test, and quan tum chemical modeling, it was shown that the thiosulfate ligands in complex 1 are replaced by GS– to give a new binuclear nitrosyl iron ...
Added: September 16, 2025
Курмаз С. В., Комендант Р. И., Перепелицина Е. О. et al., International Journal of Molecular Sciences 2024 Vol. 25 No. 15 Article 8422
The terpolymers of N-vinylpyrrolidone (VP) with acrylic acid and triethylene glycol methacrylate were synthesized with more than 90% yield by radical copolymerization in ethanol from monomeric mixtures of different molar composition (98:2:2, 95:5: 2 and 98:2:5) and their monomer composition, absolute molecular masses and hydrodynamic radii in aqueous media were determined. Using the MTT test, ...
Added: September 14, 2025
Третьяков Б. А., Филатова Н. В., Мумятова В. А. et al., Бюллетень экспериментальной биологии и медицины 2023 Т. 175 № 1 С. 29–33
The principal possibility of inhibition of histone deacetylases (HDACs) in nuclear extract of HeLa cells by N1-hydroxy-N4-(pyridine-4-yl)succinamide (compound 1) has been investigated. Compound 1 inhibits HDAC and exhibits low toxicity to A-172, HepG2, HeLa, MCF-7, and Vero cells. HeLa cells are most sensitive to the compound. With an increase in the interval between the administration ...
Added: September 14, 2025