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Microbial Synthesis of Silver and Selenium-Based Nanostructures with Synergistic Biocidal Action 具有协同杀菌作用的银和硒基纳米结构的微生物合成
IF 0.8
Nanotechnologies in Russia Pub Date : 2026-07-21 DOI: 10.1134/S2635167626602615
T. A. Voeikova, O. A. Zhuravleva, A. Yu. Vlasova, S. N. Malakhov, T. D. Patsaev, A. L. Vasil’ev, E. I. Kozhukhova, P. A. Zhdanov
{"title":"Microbial Synthesis of Silver and Selenium-Based Nanostructures with Synergistic Biocidal Action","authors":"T. A. Voeikova,&nbsp;O. A. Zhuravleva,&nbsp;A. Yu. Vlasova,&nbsp;S. N. Malakhov,&nbsp;T. D. Patsaev,&nbsp;A. L. Vasil’ev,&nbsp;E. I. Kozhukhova,&nbsp;P. A. Zhdanov","doi":"10.1134/S2635167626602615","DOIUrl":"10.1134/S2635167626602615","url":null,"abstract":"<p>Binary silver–selenium nanoparticles (NPs) (Ag–SeNPs), as well as monometallic AgNPs and SeNPs, have been successfully synthesized using a bacterial strain <i>Shewanella oneidensis</i> MR-1 and AgNO<sub>3</sub>, Na<sub>2</sub>SEO<sub>3</sub> precursors. The obtained NPs were studied using a set of experimental methods. The sizes of nanocrystals obtained by microscopy methods ranged from 5 to 20 nm, the electrokinetic potential of the samples, determined by the method of electrophoretic light scattering, was characterized by a value from –20 to ‒30 mV. Energy dispersive spectra of Ag-SeNPs showed the presence of peaks characteristic of Ag and Se, and distribution maps of elemental Ag and Se allowed one to identify the samples as NPs containing Ag–Se. The biocidal activity of the particles was assessed using the diffusion method in an agar medium. It was found that binary Ag–SeNPs have a synergistic biocidal effect compared to individual Ag and SeNPs due to the combination of biogenic nanostructures with different chemical compositions in the nanomaterial.</p>","PeriodicalId":716,"journal":{"name":"Nanotechnologies in Russia","volume":"21 2","pages":"275 - 287"},"PeriodicalIF":0.8,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148532284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis of Concentrated Phases Pb1–xRxF2+x (R = La, Pr, Nd) with Fluorite Structure from Aqueous Solutions and Their Ionic Conductivity 萤石结构Pb1-xRxF2 +x （R = La, Pr, Nd）水溶液浓缩相的合成及其离子电导率
IF 0.8
Nanotechnologies in Russia Pub Date : 2026-07-21 DOI: 10.1134/S263516762660241X
I. I. Buchinskaya, N. I. Sorokin
{"title":"Synthesis of Concentrated Phases Pb1–xRxF2+x (R = La, Pr, Nd) with Fluorite Structure from Aqueous Solutions and Their Ionic Conductivity","authors":"I. I. Buchinskaya,&nbsp;N. I. Sorokin","doi":"10.1134/S263516762660241X","DOIUrl":"10.1134/S263516762660241X","url":null,"abstract":"<p>Nanocrystalline (10–14 nm) powders of concentrated solid solutions of Pb<sub>1–<i>x</i></sub><i>R</i><sub><i>x</i></sub>F<sub>2+<i>x</i></sub> (<i>R</i> = La, Pr, Nd) with a fluorite structure were synthesized using the coprecipitation technique from aqueous solutions of nitrates. The ionic conductivity of ceramic samples based on them (85 ± 2% of the X-ray structural density) was studied using impedance spectroscopy. For the samples of Pb<sub>0.57</sub>La<sub>0.43</sub>F<sub>2.43</sub> (fluorinating agents HF and NH<sub>4</sub>F), Pb<sub>0.57</sub>Pr<sub>0.43</sub>F<sub>2.43</sub> (HF), and Pb<sub>0.58</sub>Nd<sub>0.42</sub>F<sub>2.42</sub> (HF), the values of conductivity of 3.9 × 10<sup>−3</sup>, 2.4 × 10<sup>−3</sup> and 9.9 × 10<sup>−4</sup> S/cm (500 K) and the enthalpies of activation of ion transport of 0.52, 0.51, and 0.49 eV, respectively, were obtained. The ionic conductivity of the Pb<sub>1–<i>x</i></sub>La<sub><i>x</i></sub>F<sub>2+<i>x</i></sub> solid solution synthesized at low temperatures closely matches the electrical conductivity of the same solid solution obtained by high-temperature alloying. Synthesis of superionic materials based on the fluorite modification of β-PbF<sub>2</sub> by coprecipitation from aqueous solutions does not require high-temperature heating or a fluorinating atmosphere.</p>","PeriodicalId":716,"journal":{"name":"Nanotechnologies in Russia","volume":"21 1","pages":"72 - 78"},"PeriodicalIF":0.8,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148532430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimization of Resistive Switching Parameters in Memristor Structures Si/SiOx/Ti by High-Temperature Annealing 高温退火法优化Si/SiOx/Ti忆阻器阻性开关参数
IF 0.8
Nanotechnologies in Russia Pub Date : 2026-07-21 DOI: 10.1134/S2635167626602913
D. V. Gusev, E. L. Bruk, A. O. Kukushkin, M. N. Martyshov, P. A. Forsh, A. S. Avilov, V. N. Baranova, D. N. Khmelenin, P. K. Kashkarov
{"title":"Optimization of Resistive Switching Parameters in Memristor Structures Si/SiOx/Ti by High-Temperature Annealing","authors":"D. V. Gusev,&nbsp;E. L. Bruk,&nbsp;A. O. Kukushkin,&nbsp;M. N. Martyshov,&nbsp;P. A. Forsh,&nbsp;A. S. Avilov,&nbsp;V. N. Baranova,&nbsp;D. N. Khmelenin,&nbsp;P. K. Kashkarov","doi":"10.1134/S2635167626602913","DOIUrl":"10.1134/S2635167626602913","url":null,"abstract":"<p>The possibility of improving the characteristics of silicon oxide-based memristors has been demonstrated for use in neuromorphic computing systems by crystallizing a thin layer of SiO<sub><i>x</i></sub> by means of high-temperature annealing. It is shown that during high-temperature annealing in the SiO<sub><i>x</i></sub> layer, nanocrystalline inclusions of silicon appear, which are the seeds of conductive filaments. As a result, it is possible to improve the operating stability, increase the ratio of resistance in the high-resistance state to resistance in the low-resistance state, and reduce the switching voltage values. This opens up the possibility of creating efficient neuromorphic systems compatible with silicon technologies.</p>","PeriodicalId":716,"journal":{"name":"Nanotechnologies in Russia","volume":"21 2","pages":"322 - 325"},"PeriodicalIF":0.8,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S2635167626602913.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148532371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Physical, Chemical and Biological Properties of Protargol Protargol的物理、化学和生物特性
IF 0.8
Nanotechnologies in Russia Pub Date : 2026-07-21 DOI: 10.1134/S2635167626602482
A. A. Antsiferova, I. S. Novikov, S. V. Aleshin, A. L. Vasiliev, S. I. Viktorov, A. D. Ivanenko, O. A. Kondratev, E. S. Kulikova, T. D. Patsaev, A. V. Vershinin, P. K. Kashkarov
{"title":"Physical, Chemical and Biological Properties of Protargol","authors":"A. A. Antsiferova,&nbsp;I. S. Novikov,&nbsp;S. V. Aleshin,&nbsp;A. L. Vasiliev,&nbsp;S. I. Viktorov,&nbsp;A. D. Ivanenko,&nbsp;O. A. Kondratev,&nbsp;E. S. Kulikova,&nbsp;T. D. Patsaev,&nbsp;A. V. Vershinin,&nbsp;P. K. Kashkarov","doi":"10.1134/S2635167626602482","DOIUrl":"10.1134/S2635167626602482","url":null,"abstract":"<p>Silver proteinate such as Protargol, first synthesized in 1897, is currently used to treat infectious diseases of human. In Russia, Protargol is produced by a number of commercial companies, using different synthesis technologies and reagents and without disclosing the characteristics and properties of the resulting drug. Thus, commercially available samples of Protargol are not sufficiently characterized for environment. In this work commercial samples of Protargol have been characterized using modern analytical techniques such as electron microscopy, energy-dispersive X-ray microanalysis, X-ray diffractometry, dynamical light scattering, UV spectrophotometry and high-performance liquid chromatography, which allowed to identify their new properties. It has been established that Protargol is essentially a solution of crystalline silver nanoparticles stabilized a protein (in particular, collagen). It has been shown that Protargol can be used as a commercially and financially accessible source of model silver nanoparticles for scientific research, which is very relevant. The range of possible applications of silver proteinate in medicine and agriculture has been expanded.</p>","PeriodicalId":716,"journal":{"name":"Nanotechnologies in Russia","volume":"21 2","pages":"288 - 298"},"PeriodicalIF":0.8,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S2635167626602482.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148532372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Uromodulin on Urine Rheological Properties 尿调素对尿流变学性质的影响
IF 0.8
Nanotechnologies in Russia Pub Date : 2026-07-21 DOI: 10.1134/S2635167625600762
N. A. Verlov, S. B. Landa, V. S. Burdakov, L. A. Ivanova, T. A. Antysheva, Y. E. Gorshkova, V. V. Volkov, V. L. Emanuel
{"title":"Effect of Uromodulin on Urine Rheological Properties","authors":"N. A. Verlov,&nbsp;S. B. Landa,&nbsp;V. S. Burdakov,&nbsp;L. A. Ivanova,&nbsp;T. A. Antysheva,&nbsp;Y. E. Gorshkova,&nbsp;V. V. Volkov,&nbsp;V. L. Emanuel","doi":"10.1134/S2635167625600762","DOIUrl":"10.1134/S2635167625600762","url":null,"abstract":"<p>Uromodulin, a key glycoprotein in human urine, plays a crucial role in maintaining urinary tract homeostasis by forming supramolecular structures that influence urine’s rheological properties. This study investigates the effect of uromodulin on both macroscopic (viscosity) and microscopic (nanoparticle mobility) characteristics of solutions, using small-angle X-ray scattering (SAXS), nanoparticle tracking analysis (NTA), and viscometry. Our results reveal that uromodulin forms a dynamic polymer network with distinct structural elements: a central filament (2.7 nm), side chains (8.9 nm), and network cells (~28 nm at 5 g/L). While macroscopic viscosity remains unchanged in dilute solutions (0.004–1 g/L), uromodulin significantly restricts the mobility of nanoparticles (32–150 nm) in a size- and concentration-dependent manner, with effects becoming more pronounced at protein concentrations above 0.05 g/L. These findings highlight uromodulin’s role in modulating local rheology, which may contribute to urine’s colloidal stability and prevention of pathological crystallization. The study bridges structural insights from SAXS with functional assays, offering a mechanistic understanding of uromodulin’s role in urinary physiology.</p>","PeriodicalId":716,"journal":{"name":"Nanotechnologies in Russia","volume":"21 2","pages":"210 - 218"},"PeriodicalIF":0.8,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148532296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Generation De Novo Metal Nanocrystals in Heterogeneous Hydrogel Media As a New Tool of Analytical Nanobiotechnology 非均相水凝胶介质中新一代金属纳米晶体作为分析纳米生物技术的新工具
IF 0.8
Nanotechnologies in Russia Pub Date : 2026-07-21 DOI: 10.1134/S2635167626602573
D. A. Skladnev, V. V. Sorokin
{"title":"Generation De Novo Metal Nanocrystals in Heterogeneous Hydrogel Media As a New Tool of Analytical Nanobiotechnology","authors":"D. A. Skladnev,&nbsp;V. V. Sorokin","doi":"10.1134/S2635167626602573","DOIUrl":"10.1134/S2635167626602573","url":null,"abstract":"<p>The prospects of using two-phase heterogeneous hydrogel media for generating nanocrystalline structures (nanoclusters) of silver have been studied. It has been shown that nanoclusters formed in heterogeneous media retain their luminescence properties for a long time. The nanoclusters obtained in this way can be used as an element of an analytical sensor system for rapid assessment of the level of general metabolic activity of living cells. Modeling of processes occurring at the early stages of formation of nanocrystalline structures <i>de novo</i> has been carried out.</p>","PeriodicalId":716,"journal":{"name":"Nanotechnologies in Russia","volume":"21 2","pages":"312 - 321"},"PeriodicalIF":0.8,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148532434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Agglomeration of Nanoparticles Synthesized by Spark Discharge 火花放电合成纳米颗粒的团聚研究
IF 0.8
Nanotechnologies in Russia Pub Date : 2026-07-21 DOI: 10.1134/S2635167626602263
A. A. Zaripov
{"title":"Agglomeration of Nanoparticles Synthesized by Spark Discharge","authors":"A. A. Zaripov","doi":"10.1134/S2635167626602263","DOIUrl":"10.1134/S2635167626602263","url":null,"abstract":"<p>Nanoparticle agglomeration presents a major challenge, as it leads to a degradation of their functional characteristics. In this paper, we study the problem of agglomeration of nanoparticles obtained by the spark method in 1% sodium chloride (NaCl) solution and kept for 100 days. Analysis of particle size distribution revealed a significant shift of the main fraction from the nanorange (25–75 nm) to the range of 1–10 μm, which indicates a high degree of agglomeration with an increase in the particle size by an average of 85 times (agglomeration index is ~85). The main causes of agglomeration are the high specific surface area of nanoparticles, which promotes their adhesion, the influence of the ionic environment of the NaCl solution, screening electrostatic repulsion and heterogeneity of the surface properties of the particles due to the synthesis method. To prevent agglomeration, it is proposed to optimize the spark discharge parameters, use less ionic media, reduce the electrolyte concentration and add stabilizers such as citrates. The results highlight the critical importance of controlling storage conditions and time to ensure the stability of colloidal solutions of nanoparticles.</p>","PeriodicalId":716,"journal":{"name":"Nanotechnologies in Russia","volume":"21 1","pages":"25 - 30"},"PeriodicalIF":0.8,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148532413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A New Version of the Theory of Nanofocusing Hard Synchrotron Radiation Beams by a Long Compound Refractive Lens. II 长复合折射透镜纳米聚焦硬同步辐射光束理论的新版本。2
IF 0.8
Nanotechnologies in Russia Pub Date : 2026-07-21 DOI: 10.1134/S2635167625602384
V. G. Kohn
{"title":"A New Version of the Theory of Nanofocusing Hard Synchrotron Radiation Beams by a Long Compound Refractive Lens. II","authors":"V. G. Kohn","doi":"10.1134/S2635167625602384","DOIUrl":"10.1134/S2635167625602384","url":null,"abstract":"<p>Two aspects of a new theory for nanofocusing synchrotron radiation (SR) into nanometer-scale transverse dimensions using a long compound refractive lens (CRL) are considered. First, a method for calculating the rocking curve, which differs from the Gaussian function and depends on the actual aperture size of the CRL, is developed. Second, a new method for calculating the wave function transformation as SR passes through air after focusing in the CRL, including in the region near the focal length, is proposed. The new method is based on an analytical representation of the Huygens–Fresnel integral through a complex Fresnel integral. It yields results in the same time or even faster than the method based on the Fourier transform and is simpler and more stable.</p>","PeriodicalId":716,"journal":{"name":"Nanotechnologies in Russia","volume":"21 1","pages":"120 - 125"},"PeriodicalIF":0.8,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148532431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sensory Properties of CVD Graphene–Soot Composites CVD石墨烯-烟灰复合材料的感官性能
IF 0.8
Nanotechnologies in Russia Pub Date : 2026-07-21 DOI: 10.1134/S2635167625602049
A. I. Bogomolova, T. I. Gareev, O. A. Nerushev, D. V. Sorokin, A. A. Shishin, V. Golovakhin, A. G. Bannov, D. V. Smovzh
{"title":"Sensory Properties of CVD Graphene–Soot Composites","authors":"A. I. Bogomolova,&nbsp;T. I. Gareev,&nbsp;O. A. Nerushev,&nbsp;D. V. Sorokin,&nbsp;A. A. Shishin,&nbsp;V. Golovakhin,&nbsp;A. G. Bannov,&nbsp;D. V. Smovzh","doi":"10.1134/S2635167625602049","DOIUrl":"10.1134/S2635167625602049","url":null,"abstract":"<p>Room temperature NO<sub>2</sub> sensors based on combination of conductive graphene substrate with arc discharge soot containing metal (Mn, Al, and Sn) nanoparticles are presented. The sensors were created by wet transfer of CVD synthesized graphene onto a silicon substrate, followed by magnetron sputtering of the contacts and aerosol deposition of a soot suspension onto the graphene surface. Composite sensors are more sensitive than bare poly-crystalline graphene and demonstrates better recovery than soot-based sensors without graphene layer. The highest sensitivity to the NO<sub>2</sub> was found for Sn containing arc discharge soot. The mechanisms of interaction between arc discharge soot and additive nanoparticles with a polycrystalline graphene coating are discussed. The proposed approach can be used to design highly sensitive selective graphene-based sensors.</p>","PeriodicalId":716,"journal":{"name":"Nanotechnologies in Russia","volume":"21 2","pages":"267 - 274"},"PeriodicalIF":0.8,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148532370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optical Properties of Hydrophilic Cesium–Lead Bromide Perovskite Quantum Dots 亲水铯-溴化铅钙钛矿量子点的光学性质
IF 0.8
Nanotechnologies in Russia Pub Date : 2026-07-21 DOI: 10.1134/S2635167625600907
I. V. Mukhina, S. A. Novikova, D. A. Asabin, E. D. Gribova
{"title":"Optical Properties of Hydrophilic Cesium–Lead Bromide Perovskite Quantum Dots","authors":"I. V. Mukhina,&nbsp;S. A. Novikova,&nbsp;D. A. Asabin,&nbsp;E. D. Gribova","doi":"10.1134/S2635167625600907","DOIUrl":"10.1134/S2635167625600907","url":null,"abstract":"<p>The optical properties and stability of CsPbBr<sub>3</sub> perovskite quantum dots (PQDs) in water have been investigated using L-glutamic acid, L-aspartic acid, and glutathione as stabilizing ligands in combination with octadecylamine (ODA). Synthesis was carried out via a ligand-assisted reprecipitation method, whereby ODA formed a hydrophobic barrier, protecting the nanoparticles from water exposure, while the amino acids facilitated the formation of a hydrophilic surface on the PQDs. The 17 highest stability and photoluminescence quantum yield (PLQY ≈ 81%) for the PQDs were observed when L-glutamic acid and ODA were employed as stabilizing agents. The modified PQDs retained over 60% of their initial fluorescence intensity in aqueous solution for 15 days, exhibiting an emission maximum at 517 nm. The results demonstrate that the synergistic interaction between a long-chain amine and an amino acid effectively prevents PQDs degradation in aqueous environments, significantly expanding the potential for biomedical applications of these materials.</p>","PeriodicalId":716,"journal":{"name":"Nanotechnologies in Russia","volume":"21 1","pages":"19 - 24"},"PeriodicalIF":0.8,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148532407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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