Russian Journal of Physical Chemistry A最新文献

{"title":"Next-Generation Nanomedicines: Integration of Nanodrug Carriers and Artificial Intelligence","authors":"S. Prakash,&nbsp;Bradha Madhavan,&nbsp;Shatheesh C Kumar,&nbsp;Maria Joseph Angelaa Lincy,&nbsp;Senthilkumar Nangan,&nbsp;Branesh M. Pillai","doi":"10.1134/S0036024426701591","DOIUrl":"10.1134/S0036024426701591","url":null,"abstract":"<p>The effectiveness of traditional cancer chemotherapy is often limited due to poor tumor selectivity, systemic toxicity, and differences in how patients respond to drugs. Nanomedicine-based drug delivery systems offer promising ways to improve targeted delivery and controlled release of anticancer agents. However, designing these systems is complicated by the interactions between physical and chemical properties, biological factors, and the varying tumor microenvironments. In this study, we present a next-generation, AI-optimized nanomedicine framework for precision cancer therapy. This framework combines machine learning-based predictive modeling with computer-aided design of nano carriers. To estimate the adsorption capability of drugs in the nanocarrier surface, various chemistry models such as Langmuir, Freundlich, and Temkin are discussed. The integrated thermodynamic modeling and kinetic simulations, and biological response analysis in nano medicine are detailed. Advanced AI algorithms, such as supervised learning and deep neural networks, improve tumor targeting efficiency, enhance drug stability, and allow for responsive release profiles tailored to specific cancer environments. The influence of ionic strength toward electrostatic double-layer interactions according to DLVO theory has analyzed. It enables quick virtual testing of nanocarrier formulations, cutting down on trial-and-error in experiments and supporting personalized treatment design. Overall, this review article provides a strong computational model for developing AI-driven nanomedicine. It highlights the potential to improve precision oncology and speed up the clinical use of smart drug delivery systems for cancer treatment.</p>","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"100 9","pages":"2135 - 2148"},"PeriodicalIF":0.7,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148878023","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":"New Correlation for the Critical Amplitude of the Liquid–Gas Coexistence Curve Taking into Account the Critical Compressibility Factor","authors":"S. V. Rykov,&nbsp;I. V. Kudryavtseva","doi":"10.1134/S0036024426701414","DOIUrl":"10.1134/S0036024426701414","url":null,"abstract":"&lt;p&gt;The known correlation dependencies &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt; = &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt;(β), &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt; = &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt;(ω), and &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt; = &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt;(β, ω) relating the critical amplitude of the liquid-gas coexistence curve &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt; with the critical index β of the saturation line and with the acentric factor ω are analyzed. Based on the dependence &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt; = &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt;(β, ω), it is shown that correlations for &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt; that depend only on one individual parameter of the substance ω do not allow taking into account the behavioral features of &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt; for substances such as, for example, water and heptane. Therefore, to more fully take into account the behavioral features of the coexistence curve in an asymptotic neighborhood of the critical point, the correlation dependence &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt; = &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt;(β, ω, &lt;i&gt;Z&lt;/i&gt;&lt;sub&gt;&lt;i&gt;c&lt;/i&gt;&lt;/sub&gt;) = &lt;i&gt;C&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt; + &lt;i&gt;C&lt;/i&gt;&lt;sub&gt;1&lt;/sub&gt;ω + &lt;i&gt;C&lt;/i&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;i&gt;Z&lt;/i&gt;&lt;sub&gt;&lt;i&gt;c&lt;/i&gt;&lt;/sub&gt; + &lt;i&gt;C&lt;/i&gt;&lt;sub&gt;3&lt;/sub&gt;β, where &lt;i&gt;Z&lt;/i&gt;&lt;sub&gt;&lt;i&gt;c&lt;/i&gt;&lt;/sub&gt; is the critical compressibility factor and &lt;i&gt;C&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt;, &lt;i&gt;C&lt;/i&gt;&lt;sub&gt;1&lt;/sub&gt;, &lt;i&gt;C&lt;/i&gt;&lt;sub&gt;2&lt;/sub&gt;, and &lt;i&gt;C&lt;/i&gt;&lt;sub&gt;3&lt;/sub&gt; are the constant coefficients, is proposed. In the proposed correlation dependence, β, ω, and &lt;i&gt;Z&lt;/i&gt;&lt;sub&gt;&lt;i&gt;c&lt;/i&gt;&lt;/sub&gt; are the independent variables. The correlation &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt; = &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt;(β, ω, &lt;i&gt;Z&lt;/i&gt;&lt;sub&gt;&lt;i&gt;c&lt;/i&gt;&lt;/sub&gt;) is tested in the ranges of 3.0 ≤ β ≤ 3.85 and –0.398 ≤ ω ≤ 3.65 of the data on the critical amplitude &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt; of 25 substances (89 points (&lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt;, β)). The proposed correlation &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt; = &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt;(β, ω, &lt;i&gt;Z&lt;/i&gt;&lt;sub&gt;&lt;i&gt;c&lt;/i&gt;&lt;/sub&gt;) describes the experimental data with a maximum deviation of up to 6% and is in good agreement with the correlation dependences &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt; = &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt;(ω) of R. A. Perkins et al., Int. J. Thermophys. &lt;b&gt;34&lt;/b&gt;, 191 (2013) at β = 0.326 and of A. Abbaci, Int. J. Thermophys. &lt;b&gt;45&lt;/b&gt;, 138 (2024). at β = 0.325. However, for the entire group of substances under consideration, in the case of β ≥ 0.34, the deviations δ&lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt; of these correlations &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt;(ω) exceed 10%. This means that the amplitude &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt; is the individual characteristic of the substance, the magnitude of which is significantly affected by the degree of nonsphericity of the substance molecules ω and by the individual parameter &lt;i&gt;Z&lt;/i&gt;&lt;sub&gt;&lt;i&gt;c&lt;/i&gt;&lt;/sub&gt;. The possibility of using the new correlation &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt; = &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt;(β, ω, &lt;i&gt;Z&lt;/i&gt;&lt;sub&gt;&lt;i&gt;c&lt;/i&gt;&lt;/sub&gt;) to determine the critical amplitude of the saturation line of methanol and ethanol is also discussed. The effect of the inclusion of the known correlations between ω and &lt;i&gt;Z&lt;/i&gt;&lt;sub&gt;&lt;i&gt;c&lt;/i&gt;&lt;/sub&gt; in the structure of the proposed correlation dependence on the calculation accuracy for &lt;i&gt;B&lt;/i&gt;&lt;sub&gt;0&lt;/sub&gt; is consid","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"100 9","pages":"1931 - 1944"},"PeriodicalIF":0.7,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148878169","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":"Integrative Molecular Docking and Spectroscopic Analysis of the Anti-Cancer Drug Afinitor","authors":"P. Venkata Ramana,&nbsp;B. Prasad Rao,&nbsp;Narayanam. P. S. Acharyulu,&nbsp;Shaik Parvinnisa,&nbsp;Sudarshana Santhosh Kumar Kothapalli,&nbsp;D. Jagadeeswara Rao","doi":"10.1134/S0036024426701694","DOIUrl":"10.1134/S0036024426701694","url":null,"abstract":"<p>In order to understand the structure and binding properties of Afinitor, this work combines FT-IR, UV–Vis spectroscopy and molecular docking. Important vibrational and electrical characteristics, such as energy band gap estimates, were discovered by spectroscopic research. Strong and persistent binding with the FK506 binding protein and the FKBP-Rapamycin Binding Domain was shown by the docking results, which were also marked by favorable binding affinity, low RMSD values, and particular intermolecular interactions. These findings give a foundation for the logical development of better anticancer treatments and offer quantitative insights into drug-receptor interactions.</p>","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"100 9","pages":"2231 - 2246"},"PeriodicalIF":0.7,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148877983","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":"Estimation of Normal Boiling Points of Organic Compounds Based on Their Gas Chromatographic Retention Indices","authors":"I. G. Zenkevich","doi":"10.1134/S0036024426701499","DOIUrl":"10.1134/S0036024426701499","url":null,"abstract":"<p>An original algorithm is proposed for estimating the normal boiling points of organic compounds based on the values of their gas chromatographic retention indices (RIs) on the standard nonpolar polydimethylsiloxane stationary phases. The algorithm is characterized by simplicity of calculations without encoding molecular structures and using any increments of their structural fragments. The algorithm involves the stage of comparing the experimentally measured RI values with the molecular mass <i>I</i>(<i>M</i>) and molar refraction <i>I</i>(MR_D) indices of the compounds using several logical criteria. The main criterion is as follows: if any two RIs, <i>I</i>(<i>M</i>), and <i>I</i>(MR_D) (or all three of them) are close to each other, the formula for evaluating the <i>T</i>_b based on RI is applicable; otherwise, the calculations are forbidden. Criteria for forbidding such estimations for polar and perfluorinated organic compounds are formulated.</p>","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"100 9","pages":"2025 - 2036"},"PeriodicalIF":0.7,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S0036024426701499.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148878132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Alternative Method for Calculating the G Matrix for Large-Amplitude Vibrations","authors":"M. G. Fayzullin","doi":"10.1134/S003602442670144X","DOIUrl":"10.1134/S003602442670144X","url":null,"abstract":"<p>The article presents a new method for calculating the vibrational-rotational G matrix for molecules with large-amplitude vibrations in five-membered rings. Unlike the traditional vector representation of large-amplitude vibrations for the determination of kinetic energy functions, the proposed method is based on analytical differentiation of the dependences of atomic positions on vibrational coordinates. The developed approach does not require the construction of a vector model of molecular geometry and allows taking into account changes in bond lengths during vibrations. The effectiveness of the method is demonstrated by calculating G matrices for silacyclopentane, 3-phospholene, and phthalane. Good agreement of the results with the vector approach is shown for the diagonal elements of the matrix, and specific features in the behavior of the off-diagonal elements during pseudorotational motions are revealed.</p>","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"100 9","pages":"1966 - 1972"},"PeriodicalIF":0.7,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148878018","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":"Growth and Characterization of Structure and Non-linear Optical, Properties of Hippuric Acid Single Crystals","authors":"Sk. Rameeza Begum,&nbsp;N. Aruna,&nbsp;Radha Ramani Vedantam,&nbsp;Ramakrishna Madaka,&nbsp;Beauty Pandey,&nbsp;D. Jagadeeswara Rao","doi":"10.1134/S0036024426701669","DOIUrl":"10.1134/S0036024426701669","url":null,"abstract":"<p>High-quality organic single crystals of hippuric acid were successfully grown from methanol solvent using the slow evaporation solution growth technique. Single crystal and powder X-ray diffraction analyses confirmed the orthorhombic crystal system with the non-centrosymmetric space group <i>P</i>2₁2₁2₁, and the lattice parameters were found to be in good agreement with reported values. Optical transmittance studies revealed that the crystal is highly transparent across the entire visible region (350–1100 nm) with a lower cut-off wavelength of 230 nm, and the optical band gap was determined to be 3.74 eV using Tauc’s plot, suggesting a high laser damage threshold. Dielectric constant and dielectric loss measurements as a function of frequency confirmed the normal polarization behavior of the material with low loss at higher frequencies, indicative of good optical quality. DC conductivity measurements established the ohmic nature of the crystal, and an activation energy of 0.99 eV was calculated using the Arrhenius relation. Negative photoconductivity was observed and attributed to the Stockmann mechanism. Photoluminescence studies revealed a prominent green emission at 520 nm upon excitation at 230 nm, confirming the material’s potential in optoelectronic applications. Powder second harmonic generation (SHG) measurements using the Kurtz–Perry technique yielded an output of 18 mV, approximately 1.12 times that of the standard reference material potassium dihydrogen phosphate (KDP), establishing the NLO activity of the crystal. The first-order hyperpolarizability (β₀) computed using density functional theory (DFT) at the B3LYP/6-31G level was found to be 24.85 times greater than that of urea, further confirming the strong nonlinear optical response of hippuric acid crystals.</p>","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"100 9","pages":"2207 - 2214"},"PeriodicalIF":0.7,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148878080","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":"Synergistic Effects of Multi-layer Ti/TiO2 Photoanode on the Performance of Dye Sensitized Solar Cells","authors":"V. Jeyavani,&nbsp;A. Abiram,&nbsp;R. Jeba Beula,&nbsp;R. Beulah,&nbsp;Archana Ashok,&nbsp;N. Ammakutti Sridevi","doi":"10.1134/S0036024426701608","DOIUrl":"10.1134/S0036024426701608","url":null,"abstract":"<p>A multi-layer (ML) Ti/TiO₂ photoanode was developed to advance the operational functionality of dye-sensitized solar cells (DSSCs). The architecture consists of a sputtered Ti interlayer, a dense TiO₂ blocking layer, and multiple spin-coated TiO₂ nanoparticle layers to improve structural integrity, light harvesting, and charge transport. XRD analysis confirmed phase-pure anatase TiO₂ with improved crystallinity in the ML film, while SEM images revealed a crack-free, well-defined layered structure. Optical studies demonstrate a red shift in the absorption and a reduced band gap of 3.1 eV compared to 3.3 eV for single- and double-layer films, along with defect-induced visible absorption. Photoluminescence quenching indicated suppressed electron–hole recombination. The ML-based DSSC demonstrated a power conversion efficiency of 5.54%, significantly higher than single-layer (0.79%) and double-layer (1.47%) devices. The observed enhancement in performance is mainly due to higher dye adsorption, effective charge separation, and reduced charge recombination enabled by the rationally designed multilayer configuration.</p>","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"100 9","pages":"2149 - 2158"},"PeriodicalIF":0.7,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148878068","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":"Polypyrrole with Fe-Doped ZnO for Enhanced Photocatalytic Degradation of Methylene Blue","authors":"V. Mahadevi,&nbsp;K. Lalappa,&nbsp;Basavaraja Sannakki","doi":"10.1134/S0036024426701554","DOIUrl":"10.1134/S0036024426701554","url":null,"abstract":"<p>Polypyrrole (PPy) and its nanocomposites with Fe-doped ZnO (FZ) were synthesized via an in-situ polymerization method. The prepared materials were characterized using powder X-ray diffraction (PXRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), photoluminescence (PL), and UV–Vis spectroscopy. PXRD results confirm that FZ and PPy/FZ composites (5PFZ, 10PFZ, and 15PFZ) exhibit crystalline nature, whereas PPy is amorphous. The optical properties were evaluated using UV–Vis and PL analyses. The photocatalytic performance was assessed through the degradation of methylene blue (MB) under visible light irradiation by varying parameters such as catalyst dosage, dye concentration, and pH. Among all samples, 10PFZ demonstrated the highest photocatalytic efficiency, achieving 97.81% degradation of MB within 180 min. Scavenger studies revealed that <span>( bullet {kern 1pt} {text{OH}})</span>, <span>( bullet {kern 1pt} {text{O}}_{2}^{ - })</span>, and electrons (e^–) are the dominant reactive species responsible for degradation, and the reaction follows a pseudo-first-order kinetic model.</p>","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"100 9","pages":"2084 - 2096"},"PeriodicalIF":0.7,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148877973","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":"Effect of Anions on the Photochemical Oxidation of Amoxicillin in Aqueous Solutions","authors":"K. D. Alekseev,&nbsp;M. R. Sizykh,&nbsp;A. A. Batoeva,&nbsp;E. A. Kobunova","doi":"10.1134/S0036024426701529","DOIUrl":"10.1134/S0036024426701529","url":null,"abstract":"<p>The effect of anions commonly found in natural and wastewaters (Cl^–, <span>({text{NO}}_{3}^{ - })</span>, <span>({text{SO}}_{4}^{{2 - }})</span>, <span>({text{HCO}}_{3}^{ - })</span>) on the oxidative degradation efficiency of amoxicillin and the mineralization of total organic carbon (TOC) in the {UV-C/S₂O<span>(_{8}^{{2 - }})</span>} and {UV-C/S₂O<span>(_{8}^{{2 - }})</span>/Fe²⁺} systems activated by UV radiation from a KrCl* excilamp (222 nm) has been investigated. It has been established that chlorides (1–10 mM) promote the degradation and mineralization of the target compound in both systems. However, in the {UV-C/S₂O<span>(_{8}^{{2 - }})</span>} system at low chloride concentrations (1 mM), the formation and accumulation of toxic intermediates are observed. Sulfates exhibit a pronounced promoting effect. Nitrates inhibit the oxidation process in the {UV/S₂O<span>(_{8}^{{2 - }})</span>} system, whereas in the Fenton-like oxidative system {UV/S₂O<span>(_{8}^{{2 - }})</span>/Fe²⁺}, a promoting effect is observed at low concentrations (1 mM). Bicarbonates exhibit a significant inhibitory effect in the {UV-C/S₂O<span>(_{8}^{{2 - }})</span>/Fe²⁺} system due to the deactivation of Fe²⁺. In a model mixture of anions and in tap water, the efficiency of the processes, especially in the {UV-C/S₂O<span>(_{8}^{{2 - }})</span>/Fe²⁺} system, is substantially reduced; however, the preliminary removal of bicarbonates allows it to be restored. The results demonstrate the critical dependence of the oxidative degradation efficiency of amoxicillin on the composition of the aqueous matrix and the necessity of accounting for this factor in practical implementation.</p>","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"100 9","pages":"2056 - 2066"},"PeriodicalIF":0.7,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148878022","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":"Concentration Dependences of Electronic and Magnetic Properties of Nonstoichiometric Ferrite Doped with Manganese","authors":"V. M. Zainullina","doi":"10.1134/S0036024426701505","DOIUrl":"10.1134/S0036024426701505","url":null,"abstract":"<p>Using the coherent potential method, trends in the variation of the electronic spectrum and local magnetic moment on iron and manganese ions in La_0.5Sr_0.5Fe<span>(_{{1 - y}})</span>Mn_<i>у</i>O<span>(_{{3 - z}})</span> and La_0.5Sr_0.5Fe_0.75Mn_0.10Co_0.15O<span>(_{{3 - z}})</span> nonstoichiometric solid solutions with 0.1 ≤ <i>y</i> ≤ 0.3 and 0.05 ≤ <i>z</i> ≤ 0.35 were established. The concentration dependences of the electronic properties of La_0.5Sr_0.5Fe<span>(_{{1 - y}})</span>Mn_<i>у</i>O<span>(_{{3 - z}})</span> in the homogeneity region correlate well with the experimental data. It is shown that the compounds La_0.5Sr_0.5Fe_0.7Mn_0.3<span>({{{text{O}}}_{{2.65-2.95}}})</span> and La_0.5Sr_0.5Fe_0.75Mn_0.10Co_0.15<span>({{{text{O}}}_{{2.65-2.95}}})</span>, which have metallic-type electron spectrum and redox transitions Fe⁴⁺/Fe³⁺, Mn⁴⁺/Mn³⁺, Mn³⁺/Mn²⁺, Сo⁴⁺/Co³⁺, and Co²⁺/Co⁺, are promising electrode materials.</p>","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"100 9","pages":"2037 - 2045"},"PeriodicalIF":0.7,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148878133","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}