Отображаемые элементы 21-40 из 249

    • Phytochemical Insights and Therapeutic Potential of Chamaenerion angustifolium and Chamaenerion latifolium 

      Kozhantayeva, Akmaral; Iskakova, Zhanar; Ibrayeva, Manshuk; Sapiyeva, Ardak; Arkharbekova, Moldir; Tashenov, Yerbolat (Molecules, 2025)
      The Chamaenerion genus, particularly Chamaenerion angustifolium and Chamaenerion latifolium, is recognized for its rich phytochemical composition and extensive medicinal properties. These species are abundant in polyphenols, flavonoids, and tannins, which contribute to their potent antioxidant, antimicrobial, and anticancer activities. This review provides a comprehensive ...
      2026-03-05
    • Physico-Chemical Properties of Granular Sorbents Based on Natural Bentonite Modified by Polyhydroxocations of Aluminum and Iron (III) by Co-Precipitation 

      Kussainova, Bakytgul; Tazhkenova, Gaukhar; Kazarinov, Ivan; Burashnikova, Marina; Ramazanova, Raigul; Ivashchenko, Yelena; Saurbayeva, Bekzat; Tantybayeva, Batima; Seitkan, Ainur; Matniyazova, Gulsim; Sadiyeva, Khalipa; Nurlybayeva, Aisha; Bazarkhankyzy, Aidana (Molecules, 2025)
      The physicochemical and adsorption properties of granular sorbents based on natural bentonite and modified sorbents based on it have been studied. It was found that modification of natural bentonite with iron (III) polyhydroxocations (mod. 1_Fe_5 GA) and aluminum (III) (mod. 1_Al_5 GA) by the “co-precipitation” method leads to a change in their chemical composition, structure, ...
      2026-03-05
    • Performance Optimization Approach of Polymer-Modified Asphalt Mixtures with PET and PE Waste 

      Jexembayeva, Assel; Konkanov, Marat; Aruova, Lyazat; Kirgizbayev, Akpan; Zhaksylykova, Lailya (Polymers, 2024)
      Road infrastructure sustainability and pavement performance may be increased by using waste materials like polyethylene terephthalate (PET) and polyethylene waste (PE waste) in polymermodified asphalt mixtures. As seen by a more pronounced rise in the softening point, which exceeds 110 ◦C with 8% PE waste, PET was found to improve the tensile strength, resistance to cracking, ...
      2026-03-05
    • Pathology of Amyloid-β (Aβ) Peptide Peripheral Clearance in Alzheimer’s Disease 

      Tsoy, Andrey; Umbayev, Bauyrzhan; Kassenova, Aliya; Kaupbayeva, Bibifatima; Askarova, Sholpan (International Journal of Molecular Sciences, 2025)
      Although Alzheimer’s disease (AD) is traditionally viewed as a central nervous system disorder driven by the cerebral accumulation of toxic beta-amyloid (Aβ) peptide, new interpretations of the amyloid cascade hypothesis have led to the recognition of the dynamic equilibrium in which Aβ resides and the importance of peripheral Aβ production and degradation in maintaining ...
      2026-03-05
    • Optical properties of BaTiO3 at room temperature: DFT modelling 

      Inerbaev, Talgat M.; Graupner, David R.; Abuova, Aisulu U.; Abuova, Fatima U.; Kilin, Dmitri S. (Royal Society of Chemistry, 2025)
      The optical properties of the tetragonal phase of BaTiO3 have been studied using the density functional method. In the study of a static lattice, we employed the generalized gradient approximation functional combined with on-site Hubbard correlation (GGA + U) and a hybrid functional. To account for the thermal motion of the atoms, we performed ab initio molecular dynamics ...
      2026-03-05
    • Obtaining New Biocompatible Composite Materials with Antibacterial Properties Based on Diatomite and Biologically Active Compounds 

      Kabieva, Saule; Zhumanazarova, Gaziza; Zhaslan, Rymgul; Zhumabayeva, Gulistan; Ukhov, Arthur; Fedorishin, Dmitry; Gubankov, Alexander; Tarikhov, Farkhad; Yerkhan, Ordabay; Irina, Kurzina; Yerkassov, Rakhmetulla; Bakibaev, Abdigali (Molecules, 2024)
      This study aimed to create new composite materials based on diatomite—a non-organic porous compound—through its surface modification with bioactive organic compounds, both synthetic and natural. Chloramphenicol, tetrahydroxymethylglycoluril and betulin were used as modifying substances. Composite materials were obtained by covering the diatomite surface with bioactive substance ...
      2026-03-05
    • Modifying Bitumen with Recycled PET Plastics to Enhance Its Water Resistance and Strength Characteristics 

      Jexembayeva, Assel; Konkanov, Marat; Aruova, Lyazat; Kirgizbayev, Akpan; Zhaksylykova, Lailya (Polymers, 2024)
      This study investigates the modification of bituminous mixtures by varying percentages of PET particles (1%, 3%, 5%, 8%, 10%, and 12% PET). The following methods were employed to analyze the samples: the ring-and-ball softening point determination method (ASTM D36/D36M-14), the Fraass breaking point determination method (EN 12593: 2015), the elongation determination method ...
      2026-03-05
    • Luminescence Investigation of BaMgF4 Ceramics Under VUV Synchrotron Excitation 

      Zhunusbekov, Amangeldy M.; Strelkova, Assel V.; Karipbayev, Zhakyp T.; Kumarbekov, Kuat K.; Akilbekov, Abdirash; Kassymkhanova, Raigul N.; Kassymzhanov, Murat T.; Smortsova, Yevheniia; Popov, Anatoli I. (Crystals, 2025)
      The luminescence properties of BaMgF4 ceramics synthesized using electron beam-assisted synthesis were investigated under vacuum ultraviolet (VUV) synchrotron excitation at a cryogenic temperature of T = 9 K. Their excitation spectra, measured over the 4–10.8 eV range, and corresponding luminescence spectra revealed a complex multicomponent structure with emission maxima at ...
      2026-03-05
    • Luminescence and Electron–Hole-Trapping Centers in α-Ca2P2O7−Mn 

      Nurakhmetov, Turlybek N.; Alibay, Temirulan T.; Zhangylyssov, Keleshek B.; Nurpeissov, Aibek S.; Pazylbek, Sapargali; Griesiute, Diana; Zarkov, Aleksej; Kareiva, Aivaras (Crystals, 2024)
      The mechanisms of formation of induced intrinsic and impurity radiative states, which consist of intrinsic and impurity electron–hole-trapping center states in irradiated 𝐶⁢𝑎2⁢𝑃2⁢𝑂7 −𝑀⁢𝑛 and 𝐶⁢𝑎2⁢𝑃2⁢𝑂7 phosphates, were investigated using thermoactivation and vacuum-ultraviolet spectroscopy methods. These centers are excited at photon energies of 4.0 eV and 4.5 eV, which ...
      2026-03-05
    • Isolation and Identification of Secondary Metabolites in Rheum tataricum L.fil. Growing in Kazakhstan and Surveying of Its Anticancer Potential 

      Turgunbayeva, Aiman A.; Sultanova, Nurgul A.; Hamad, Mohammad Saleh; Savelyev, Victor A.; Chernyak, Elena I.; Bagryanskaya, Irina Yu.; Pokrovsky, Mikhail A.; Pokrovsky, Andrey G.; Gemejiyeva, Nadezhda G.; Shults, Elvira E. (Molecules, 2025)
      Rheum tataricum L.fil., known for its high tolerance to drought, salinity, and nutritional deficiency, is the least studied species of wild rhubarb. Extract of roots and rhizomes of R. tataricum has been traditionally used for the treatment of different diseases such as liver, kidney, womb, and bladder diseases and also relapsing fever. An ethanol extract of the roots of R. ...
      2026-03-05
    • Investigation of Partition Function Transformation for the Potts Model into a Dichromatic Knot Polynomial 74 

      Kassenova, Tolkyn; Tsyba, Pyotr; Razina, Olga (Symmetry, 2024)
      This article examines quantum group symmetry using the Potts model. The transformation of the Potts model into a polynomial knot state on Kaufman square brackets is analyzed. It is shown how a dichromatic polynomial for a planar graph can be obtained using Temperley–Lieb operator algebra. The proposed work provides insight into the 74 knot-partition function of Takara Musubi using ...
      2026-03-05
    • Interpolymer Complexation Between Cellulose Ethers, Poloxamers, and Polyacrylic Acid: Surface-Dependent Behavior 

      Kopishev, Eldar; Jafarova, Fatima; Tolymbekova, Lyazat; Seitenova, Gaini; Safarov, Ruslan (Polymers, 2025)
      This study examines the surface-dependent formation of interpolymer complexes (IPCs) by the layer-by-layer (LBL) deposition method. The materials used in this analysis are poly(acrylic acid) (PAA) combined with cellulose ethers, namely methyl cellulose (MC), hydroxypropyl cellulose (HPC), and hydroxyethyl cellulose (HEC), and poloxamers PX188 and PX407. PMMA, PS, and glass ...
      2026-03-05
    • Insulin and Human Serum Albumin Interactions with Core−Shell Fe3O4@SiO2 Nanoparticles Functionalized with Carboranes 

      Ludzik, Katarzyna; Marcinkowska, Monika; Klajnert-Maculewicz, Barbara; Huang, Liangliang; Jazdzewska, Monika; Korolkov, Ilya V.; Kozlovskiy, Artem L.; Zdorovets, Maxim V.; Jasiak, Natalia (The Journal of Physical Chemistry B, 2025)
      In a biological medium, nanoparticles (NPs) can spontaneously interact with proteins, adsorb onto their surface, and cause conformational and orientation changes of the proteins. As a result, the protein function is influenced in a complex manner. Therefore, a detailed understanding of the nature and specificity of protein− nanoparticle interactions is crucial for the ...
      2026-03-05
    • Influence of short-pulsed Ion irradiation on optical and photoelectrical properties of thin gallium oxide films 

      Koishybayeva, Zhanymgul; Konusov, Fedor; Pavlov, Sergey; Sidelev, Dmitrii; Nassyrbayev, Artur; Cheshev, Dmitry; Gadyrov, Ruslan; Tarbokov, Vladislav; Akilbekov, Abdirash (Optical Materials: X, 2025)
      In this work the influence of a short-pulsed ion irradiation with a high flux (~5.5•1019 cm− 2 s − 1 ) on structure, optical and photo-electrical properties of gallium oxide thin films have been investigated. The films were pro duced by the radio-frequency magnetron sputtering method. A part of deposited films was annealed in the air environment (900 ◦C, 2 h) for synthesis ...
      2026-03-05
    • Industrial sulfur separation and purification: Paving the way to energy applications 

      Uali, Aitolkyn; Kazymbetova, Aizhan; Belgibayeva, Ayaulym; Nurpeissova, Arailym; Bakenov, Zhumabay; Mukanova, Aliya (Chemical Engineering Journal, 2025)
      Sulfur, a by-product of industrial processes, presents a unique opportunity for advancing sustainable energy storage systems, particularly in metal-sulfur batteries (MSBs) and thermal energy storage (TES) applications. Both MSBs and TES technologies benefit from sulfur’s abundance, cost-effectiveness, and high energy storage potential. However, the effective utilisation of ...
      2026-03-05
    • Impact of dicarboxystilbene impurities on the properties of swift heavy ion latent tracks in PET films 

      Tuleushev, Adil Z.; Harrison, Fiona E.; Kozlovskiy, Artem L.; Zdorovets, Maxim V. (Optical Materials: X, 2024)
      We present a new hypothesis and supporting experimental evidence about the essential role played by small impurities of dicarboxystilbene in the process of UV treatment of PET films irradiated with swift heavy ions (SHI). This treatment both forms highly selective membranes with permeability values comparable to natural ones (the track-UV technique) and sharply accelerates ...
      2026-03-05
    • Hydrogel Delivery Systems for Biological Active Substances: Properties and the Role of HPMC as a Carrier 

      Amanzholkyzy, Arailym; Zhumagaliyeva, Shynar; Sultanova, Nurgul; Abilov, Zharylkasyn; Ongalbek, Damira; Donbayeva, Elvira; Niyazbekova, Aktoty; Mukazhanova, Zhazira (Molecules, 2025)
      Hydrogel delivery systems are popular dosage forms that have a number of advantages, such as ease of use, painlessness, increased efficiency due to prolongation of rheological, swelling and sorption characteristics, regulation of drug release, and stimulus sensitivity. Particular interest is shown in hydrogels of cellulose ether derivatives due to the possibility of obtaining ...
      2026-03-05
    • HKUST‑1 Synthesis in PET Track-Etched Membranes via Conversion of Deposited Cu for Carbon Dioxide Capture 

      Omertassov, Dias D.; Shakayeva, Aigerim Kh.; Zhatkanbayeva, Zhanna K.; Shakirzyanov, Rafael I.; Zdorovets, Maxim V.; Güven, Olgun; Korolkov, Ilya V. (ACS Omega, 2025)
      Climate change remains one of the most critical global challenges, largely driven by the rise in atmospheric CO2 levels. Effective strategies for capturing and utilizing CO2 are crucial to mitigate its environmental impact. Metal−organic frameworks (MOFs), particularly HKUST-1 (MOF-199), are promising materials due to their high surface area, porosity, and tunable properties. ...
      2026-03-05
    • Wet Chemical Synthesis of AlxGa1−xAs Nanostructures: Investigation of Properties and Growth Mechanisms 

      Suchikova, Yana; Kovachov, Sergii; Bohdanov, Ihor; Konuhova, Marina; Zhydachevskyy, Yaroslav; Kumarbekov, Kuat; Pankratov, Vladimir; Popov, Anatoli I. (Crystals, 2024)
      This study focuses on the wet chemical synthesis of AlxGa1−xAs nanostructures, highlighting how different deposition conditions affect the film morphology and material properties. Electrochemical etching was used to texture GaAs substrates, enhancing mechanical adhesion and chemical bonding. Various deposition regimes, including voltage switching, gradual voltage increase, and ...
      2026-03-05
    • Variation in the Bandgap of Amorphous Zinc Tin Oxide: Investigating the Thickness Dependence via In Situ STS 

      Callaghan, Peter J.; Caffrey, David; Zhussupbekov, Kuanysh; Berman, Samuel; Zhussupbekova, Ainur; Smith, Christopher M.; Shvets, Igor V. (ACS Omega, 2024)
      Amorphous transparent conducting oxides (aTCOs) have seen substantial interest in recent years due to the significant benefits that they can bring to transparent electronic devices. One such material of promise is amorphous ZnxSn1−xOy (a-ZTO). a-ZTO possesses many attractive properties for a TCO such as high transparency in the visible range, tunable charge carrier concentration, ...
      2026-03-05