Russian Journal of Physical Chemistry B最新文献

{"title":"Micro-Structural of Nano NaY Zeolite Synthesized by Hydrothermal Process","authors":"L. Bounemia,&nbsp;B. Rahal,&nbsp;Y. Larbah","doi":"10.1134/S199079312670079X","DOIUrl":"10.1134/S199079312670079X","url":null,"abstract":"<p>This study aimed to synthesize NaY zeolite via hydrothermal processing using silica, an aluminum source (metallic aluminum or Al₂O₃), NaOH, and H₂O. The effect of ripening time (24 and 48 h) on the crystallinity of the synthesized NaY zeolite was investigated. Phase purity was assessed using X-ray diffraction (XRD), while morphological characteristics were analyzed via scanning electron microscopy. Functional groups were evaluated using Fourier-transform infrared (FTIR) spectroscopy, and the chemical composition was determined using wavelength-dispersive X-ray fluorescence (WD-XRF) spectroscopy. The results indicate that ripening time significantly influences the properties of the final product. Successful synthesis of NaY zeolite was confirmed by FTIR spectroscopy, which revealed the presence of characteristic functional groups. XRD analysis showed sharp peaks indicative of high crystallinity. A Si/Al molar ratio of 2.55 was achieved at a crystallization temperature of 100°C and a ripening time of 48 h using metallic aluminum as the aluminum source. The synthesized NaY zeolite exhibited a particle size of approximately 400 nm, a crystallinity of 98%, and a specific surface area of 436 m²/g. These findings suggest that ripening time is a critical parameter to consider in the synthesis of NaY zeolite nanocrystals.</p>","PeriodicalId":768,"journal":{"name":"Russian Journal of Physical Chemistry B","volume":"20 10","pages":"1157 - 1164"},"PeriodicalIF":1.4,"publicationDate":"2026-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149250532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biological Evaluation of Silver@Au Core–Shell Nanoparticles for Breast Cancer Therapy","authors":"Z. Sh. Kadhim,&nbsp;N. Kh. Abdalameer,&nbsp;K. Arjunan","doi":"10.1134/S1990793126700776","DOIUrl":"10.1134/S1990793126700776","url":null,"abstract":"<p>Silver–silver oxide (Ag/AgO) and Ag/AgO:Au core–shell nanoparticles were synthesized by a hybrid pulsed laser ablation–plasma jet technique, in contrast to a dual plasma jet methodology. We employed X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), ultraviolet-visible near-infrared spectroscopy (UV-Vis-NIR), and transmission electron microscopy (TEM) to investigate the structure, shape, and optical properties of the nanoparticles. X-ray diffraction (XRD) analysis confirms that the prepared nanoparticles belong to the face-centered cubic structure. The FESEM results showed that well-dispersed spherical and agglomerated core-shell nanostructures could be produced with sizes ranging from 19 to 100 nm. The prepared nanoparticles absorbance spectra show a strong peak at 517 nm. TEM analysis clearly revealed a core–shell morphology, confirming that the synthesis routes were effective. The cytotoxic efficacy of the synthesized nanoparticles was assessed in vitro against MDA-MB-231 breast cancer cells and REF-52 normal fibroblast cells. These methods showed selective anticancer activity. The plasma jet method inhibited cancer cell growth by up to 63.3% after 48 h, while exhibiting relatively low toxicity towards normal cells (&lt;21%). The hybrid laser-plasma technique demonstrated a more favorable therapeutic index, exhibiting significant anticancer efficacy (~51.6% inhibition) alongside diminished cytotoxicity towards normal cells (&lt;15%). These results underscore the potential of Ag/AgO: Au core–shell nanoparticles, synthesized via plasma-based hybrid methods, as viable candidates for safe and effective nanomedicine in cancer treatment.</p>","PeriodicalId":768,"journal":{"name":"Russian Journal of Physical Chemistry B","volume":"20 10","pages":"1132 - 1144"},"PeriodicalIF":1.4,"publicationDate":"2026-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149250463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrical Impact of Doped and Undoped InGaN Cap Layers in InGaN/AlGaN/GaN HEMT Structures","authors":"A. Bellakhdar,&nbsp;F. Bendelala,&nbsp;A. Cheknane","doi":"10.1134/S1990793126700661","DOIUrl":"10.1134/S1990793126700661","url":null,"abstract":"<p>In this work, the electrical behavior of doped and undoped InGaN capping layers in InGaN/AlGaN/GaN HEMT heterostructures is studied. The spontaneous (SP) and piezoelectric (PZ) polarizations at the InGaN/AlGaN and AlGaN/GaN interfaces are considered. It follows from the analysis that an undoped InGaN cap diminishes the 2DEG sheet carrier concentration and reduces the drain current, especially for thicker caps. At the same time, the n+-doping in the InGaN cap produces similar tendencies but more significantly influences the charge redistribution, improving the carrier confinement, enhancing the 2DEG density, and increasing the drain current due to the larger polarization-induced electric field and larger conduction band offset at the n+InGaN/AlGaN/GaN interface. This study demonstrates charge control optimization in InGaN/AlGaN/GaN HEMTs by cap-layer doping.</p>","PeriodicalId":768,"journal":{"name":"Russian Journal of Physical Chemistry B","volume":"20 10","pages":"1124 - 1131"},"PeriodicalIF":1.4,"publicationDate":"2026-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149250771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural, Elastic, Electronic and Magnetic Properties of Regular and Inverse Ni2XGa (X = Co, Fe, Mn) Full Heusler Compounds: Ab initio Study within GGA-WC Approach","authors":"F. Zami,&nbsp;S. Zeffane,&nbsp;F. Sofrani,&nbsp;M. Mokhtari,&nbsp;F. Dahmane","doi":"10.1134/S1990793126700715","DOIUrl":"10.1134/S1990793126700715","url":null,"abstract":"<p>Structural, elastic, electronic and magnetic properties of regular and inverse <b>Ni</b>_<b>2</b><b>XGa (X = Co, Fe, Mn)</b> full Heusler compounds have been investigated in both <b>Hg</b>_<b>2</b><b>CuTi</b> and <b>Cu</b>_<b>2</b><b>MnAl</b> structures, by utilizing first principles calculations within the density functional theory, the Wu-Cohn Generalized Gradient Approach and the Full Potential Linearized Augmented Plane Wave Method. The obtained results from the electronic and magnetic calculations reveal that the three compounds <b>Ni</b>_<b>2</b><b>CoGa</b>, <b>Ni</b>_<b>2</b><b>FeGa</b> and <b>Ni</b>_<b>2</b><b>MnGa</b> exhibit a metallic ferromagnetic behavior for both <b>Hg</b>_<b>2</b><b>CuTi</b> and Cu₂MnAl structures, this is particularly due to the main dominance of the 3d- states of Mn, Fe and Co atoms. From the elastic constants, we have found that the three compounds are mechanically stable, ductile and anisotropic such that the <b>Ni</b>_<b>2</b><b>MnGa</b> compound is the most ductile and the <b>Ni</b>_<b>2</b><b>CoGa</b> compound is the most stiffest. These results serves as a promising reference for novel future research especially for spintronic applications.</p>","PeriodicalId":768,"journal":{"name":"Russian Journal of Physical Chemistry B","volume":"20 10","pages":"1060 - 1069"},"PeriodicalIF":1.4,"publicationDate":"2026-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149250464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural, Optical and Gas Sensing Properties of (Cr2O3)1–x : (ZnO)x Nanocomposite Thin Films Prepared by PLD","authors":"Saadoon M. Abdul Kareem,&nbsp;Mahdi H. Suhail,&nbsp;Qudama Kh. Hammad,&nbsp;Ghaith A. Mahmoud","doi":"10.1134/S1990793126700788","DOIUrl":"10.1134/S1990793126700788","url":null,"abstract":"<p>(Cr₂O₃)_1–<i>x</i> : (ZnO)_<i>x</i> nanocomposite films have been prepared using the pulsed laser deposition (PLD) method at a laser energy of 600 mJ, in different ZnO concentrations (<i>x</i> = 0, 0.03, 0.05,0.0 7, and 0.0 9 wt), on a glass substrate. The effect of the concentration ratio of Zinc oxide dopant on the middling crystalline size of the produced nanoscale particle was tested by X-Ray diffraction. Morphological was study by atomic force microscopy (AFM). The energy gap estimation value was observed to be 2.58 eV at 600 mJ and 0.05 wt of ZnO, by ultraviolet visible spectroscopy (UV-Vis) through longer wavelength shifted in comparison with the bulk of chromium oxide (~3 eV). Response, sensitivity and recovery times of the sensor in the existence of Ammonia gas were calculated and discussed. Sensitivity growth when increase ratio of Zinc oxide from (0 → 0.05) and operating temperature, and then returns to decrease over that, while response time decreases. The optimum sensitivity, response time for NH₃ gas sensor was (29.63%), response time (35 s) at PLD energy 600 mJ and concentrations ratio 0.05 of ZnO on 300°C.</p>","PeriodicalId":768,"journal":{"name":"Russian Journal of Physical Chemistry B","volume":"20 10","pages":"1145 - 1156"},"PeriodicalIF":1.4,"publicationDate":"2026-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149250535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Smart Sensing of Transition Metal Doped Zinc Sulfide for Hydro-Detection: Physicochemical Analysis by Density of States Theory","authors":"F. Mollaamin,&nbsp;M. Monajjemi","doi":"10.1134/S1990793126700703","DOIUrl":"10.1134/S1990793126700703","url":null,"abstract":"<p>A novel computational screening study of single transition metal (TM), TM-doped, and dual TMs-doped on zinc sulfide (ZnS) surface via density functional theory (DFT) calculations is presented, focusing on their stability and catalytic activity, searching for efficient photocatalysts for water molecule adsorption. This research article wants to explore the electronic-structure traits of transition metals of titanium (Ti) and chromium (Cr) doped-ZnS heterocluster through H₂O molecule adsorption using first-principles studies. A detailed study was performed using DFT calculations at the CAM-B3LYP-D3/6-311+G (d,p) level to investigate how H₂O is captured by a ZnS, TiZnS or CrZnS heterocluster. The weak signal strength observed near the parallel edge of the nanocluster sample could be because of the non-spherical arrangement of the ZnS, TiZnS or CrZnS heterocluster caused by H/OH binding. This hypothesis about energy absorption was supported by analyzing the density distributions of TDOS and LOL for both the bare and water-coated ZnS, TiZnS and CrZnS heteroclusters. An isosurface map showed a larger area involved in H₂O adsorption on the ZnS, TiZnS or CrZnS surface, leading to the formation of a hydrated ZnS (H₂O), TiZnS (H₂O) and CrZnS (H₂O)complexes, with specific atoms labeled as O1, Zn15/Ti15/Cr15, O27, H29, and H30. Based on this, it could be said that the Zn/Ti/Cr in the cubic ZnS, TiZnS or CrZnS, respectively has a greater ability to accept electrons during H₂O adsorption. It’s also important to note that when all the surface elements of ZnS, TiZnS or CrZnS are covered by H₂O molecule, the semiconducting treatment is restored. These findings suggest that the electronic properties can be adjusted by controlling the adsorption position on the ZnS, TiZnS or CrZnS surface. This study aims to explore methods for treating water and enhancing the effectiveness of titanium zinc sulfide and chromium zinc sulfide alloy photocatalysts in removing pollutants.</p>","PeriodicalId":768,"journal":{"name":"Russian Journal of Physical Chemistry B","volume":"20 10","pages":"1050 - 1059"},"PeriodicalIF":1.4,"publicationDate":"2026-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149250662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diffusion of Rhodium Atoms in Neutron-Irradiated Silicon and Their Effect on Structural and Phase Changes","authors":"A. Y. Boboev,&nbsp;Z. M. Ibrohimov,&nbsp;N. Y. Yunusaliyev,&nbsp;A. R Rafikov,&nbsp;G. G. Tojiboyev,&nbsp;M. M. Arabboeva","doi":"10.1134/S1990793126700685","DOIUrl":"10.1134/S1990793126700685","url":null,"abstract":"<p>High-purity silicon is one of the most important materials used in nanoelectronics and microelectronics because its structural and electrical properties are highly sensitive to impurities and crystal defects. In this study, the diffusion behavior of rhodium (Rh) atoms in neutron-irradiated silicon and the resulting structural-phase changes were investigated by X-ray diffraction analysis. Rh atoms were introduced into silicon by gas-phase diffusion at 1250°C for 5 h, followed by two different cooling regimes: slow cooling and rapid cooling. The diffraction results showed that all samples preserved the (111) crystallographic orientation, while significant changes were observed in lattice parameters, peak intensity, and secondary phase formation depending on the treatment conditions. Heat treatment increased the intensity of the (111)_Si reflection and slightly expanded the lattice constant, indicating relaxation of the crystal lattice and reduction of microstresses. After Rh diffusion with slow cooling, the lattice constant decreased, which suggests lattice densification caused by the incorporation of Rh atoms. In contrast, rapid cooling led to lattice expansion and promoted the formation of a new rhodium silicide (SiRh) phase. Additional reflections corresponding to SiO_<i>x</i>, SiO₂, and SiB₆ phases were also identified, confirming the formation of nanoscale secondary structures. Analysis of the forbidden reflection intensity ratio I(222)/I(111) showed that rapid cooling significantly reduced microstresses and defects in the silicon lattice. These results demonstrate that Rh diffusion combined with controlled cooling is an effective way to modify the structural state of neutron-irradiated silicon.</p>","PeriodicalId":768,"journal":{"name":"Russian Journal of Physical Chemistry B","volume":"20 10","pages":"1035 - 1040"},"PeriodicalIF":1.4,"publicationDate":"2026-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149250664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In Vitro Investigations of Bioactive Shiff Base and Its Nickel and Manganese Complexes","authors":"V. N. Senan,&nbsp;K. S. B. Kumari","doi":"10.1134/S1990793126700752","DOIUrl":"10.1134/S1990793126700752","url":null,"abstract":"<p>Schiff base ligand derived from <i>o</i>-vanillin and <i>p</i>-aminobenzoic acid and its Manganese and Nickel complexes were synthesized, characterized and biologically evaluated. In vitro cytotoxicity studies using L929 fibroblast cells confirmed that both compounds are less toxic indicating good biocompatibility. DPPH radical scavenging assays showed higher antioxidant activity for the compounds of the order Schiff base &gt; Manganese complex &gt; Nickel complex suggesting reduced hydrogen-donating ability upon metal coordination. The manganese complex was tested for its neuroprotective impact against β-amyloid-induced cytotoxicity in neuronal cells. The manganese complex demonstrated superior neuroprotective effects at an optimal concentration of 50 µg/mL. Antimicrobial and antifungal evaluations indicated better efficacy against corresponding organisms. Manganese and Nickel complexes significantly modulate biological activity, emphasizing the importance of dose optimization.</p>","PeriodicalId":768,"journal":{"name":"Russian Journal of Physical Chemistry B","volume":"20 10","pages":"1095 - 1102"},"PeriodicalIF":1.4,"publicationDate":"2026-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149250533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"DNA Synthesis under Magnetic Control","authors":"A. L. Buchachenko","doi":"10.1134/S1990793126700740","DOIUrl":"10.1134/S1990793126700740","url":null,"abstract":"<p>The radical spin selective mechanism of the DNA synthesis is discovered by observation of magnetic isotope effects induced by nuclear magnetic catalyzing ions ^<b>25</b>Mg²⁺, ^<b>43</b>Ca²⁺, and ^<b>67</b>Zn²⁺. This mechanism is destructive; it prevents DNA synthesis and competes with nucleophile mechanism. The quantitative competition of these two mechanisms in the living organisms as a function of magnetic field is discussed. It is concluded that only nucleophile mechanism produces DNA, but magnetic fields activate the radical destructive mechanism and stimulate its anticancer function.</p>","PeriodicalId":768,"journal":{"name":"Russian Journal of Physical Chemistry B","volume":"20 10","pages":"1091 - 1094"},"PeriodicalIF":1.4,"publicationDate":"2026-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149250624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Methoxy-Substituted 1,2,3-Triazole-Containing Schiff Bases: Synthesis, Characterization and Catalytic Oxidation of Benzyl Alcohol","authors":"F. Çelik","doi":"10.1134/S1990793126700727","DOIUrl":"10.1134/S1990793126700727","url":null,"abstract":"<p>Methoxy-substituted 1,2,3-triazole containing Schiff bases constitute an important research area for both understanding structure–activity relationships and designing new biological and functional materials. Such conjugated and functionally rich hybrid systems, when combined with strategies offered by modern synthetic chemistry, contribute to the development of more selective, effective, and stable molecules. In this study, new 1,2,3-triazole derivatives, namely compounds (4a–c), were synthesized. The synthesized compounds were characterized by spectroscopic techniques including Fourier Transform Infrared Spectroscopy (FT-IR), ¹H-Nuclear Magnetic Resonance Spectroscopy (¹H-NMR), and ¹³C-Nuclear Magnetic Resonance Spectroscopy (¹³C-NMR). In this study, the catalytic performance of metal-free Schiff bases (4a, 4b, and 4c) was investigated in the oxidation of benzyl alcohol using H₂O₂ as the oxidant. The obtained results showed that substituent effects on the aromatic ring significantly influence catalytic activity by modulating the electronic structure of the imine (C=N) group. Among the catalysts, the OH-substituted Schiff base (4c) exhibited the highest performance, with 71.5% benzyl alcohol conversion, 89% benzaldehyde selectivity, and higher Turnover number and Turnover frequency values.</p>","PeriodicalId":768,"journal":{"name":"Russian Journal of Physical Chemistry B","volume":"20 10","pages":"1070 - 1078"},"PeriodicalIF":1.4,"publicationDate":"2026-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149250623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}