Results in Materials最新文献

{"title":"Sustainable synthesis of TiO2 nanoparticles from gambier leaf extract for enhanced DSSC photocurrent response","authors":"Nofrijon Sofyan ,&nbsp;Yetria Rilda ,&nbsp;Andriayani ,&nbsp;Fiona Angellinnov ,&nbsp;Mouna M'rad ,&nbsp;Muhammad ,&nbsp;Aga Ridhova ,&nbsp;Akhmad Herman Yuwono ,&nbsp;Donanta Dhaneswara","doi":"10.1016/j.rinma.2025.100752","DOIUrl":"10.1016/j.rinma.2025.100752","url":null,"abstract":"<div><div>Titanium dioxide nanoparticles (TiO₂ NPs) are widely employed as semiconductor materials in dye-sensitized solar cells (DSSCs) photoanodes. However, conventional chemical and physical synthesis methods to synthesize TiO₂ NPs raise environmental concerns. This study presents an eco-friendly synthesis route for TiO₂ NPs using gambier (<em>Uncaria gambir</em>) leaf extract as a natural capping agent coupled with the use of a chelating agent. The phytochemical composition of the extract was characterized using liquid chromatography-mass spectrometry (LC-MS) and Fourier transform infrared spectroscopy (FTIR). The optical, structural, and morphological properties of the synthesized NPs were investigated using UV–Vis diffuse reflectance spectroscopy (UV-DRS), X-ray diffraction (XRD), field emission electron microscopy coupled with energy dispersive X-ray spectroscopy (FESEM/EDS), Raman spectroscopy, and high-resolution transmission electron microscopy coupled with selected area diffraction (HRTEM/SAED). The green-synthesized TiO₂ NPs exhibited a reduced bandgap energy of 3.04 eV compared to 3.2 eV for commercial and ethanol-synthesized counterparts. While acetylacetone as a chelating agent showed mixed effects, its 30 % concentration yielded a bandgap of 3.07 eV. Remarkably, TiO₂ NPs synthesized with gambier extract and 50 % acetylacetone achieved the highest DSSC efficiency of 4.40 %, significantly outperforming commercial TiO₂ (2.83 %). These findings demonstrate the potential of plant-based synthesis in advancing sustainable nanomaterials for photovoltaic applications.</div></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"27 ","pages":"Article 100752"},"PeriodicalIF":0.0,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144861086","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}

{"title":"Effects of different post surface treatments on the surface characteristics, corrosion resistance and metal migration from L-PBF additively manufactured 316L stainless steel","authors":"Eirini-Maria Paschalidou ,&nbsp;Gunilla Herting ,&nbsp;Tingru Chang ,&nbsp;Daniel Klint ,&nbsp;Lindsay Leach ,&nbsp;Nuria Fuertes ,&nbsp;James Shipley ,&nbsp;Johannes Gårdstam ,&nbsp;Peter Gillberg ,&nbsp;Martina Halmdienst ,&nbsp;Oskar Karlsson ,&nbsp;David Malmström ,&nbsp;Inger Odnevall","doi":"10.1016/j.rinma.2025.100748","DOIUrl":"10.1016/j.rinma.2025.100748","url":null,"abstract":"<div><div>Additive manufacturing (AM) using Laser Powder Bed Fusion (L-PBF) enables the fabrication of complex metal components with high precision. However, the as-printed surfaces often exhibit high roughness, residual stresses, and partially fused particles, which can negatively impact the mechanical performance, corrosion resistance, and fatigue life. Surface treatments are therefore required to improve surface integrity, reduce defects, and enhance functional properties such as corrosion resistance. This study explores the impact of chemical and mechanical post-processing methods including pickling, clean hot isostatic pressure (HIP), Hirtization, shot peening (SP), and isotropic super finishing (C.A.S.E.) on the microstructure, surface composition and topography of L-PBF printed HIP treated 316L stainless steel surfaces in relation to their corrosion resistance and extent of metal dissolution in artificial tap water with and without chlorides (1 and 3 wt% Cl⁻). Corrosion studies were also performed in NaCl (2.1 wt% Cl⁻) based on the ASTM G61 standard. The utilization of a combination of electrochemical, chemical, microscopic, and spectroscopic techniques discerned notable differences for the differently surface treated AM 316L in terms of microstructure, surface topography, surface roughness, surface oxide composition and barrier properties, metal dissolution, corrosion resistance as well as pitting corrosion resistance.</div></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"27 ","pages":"Article 100748"},"PeriodicalIF":0.0,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858342","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}

{"title":"Performance and reusability features of solar-driven N-TiO2-PVDF hybrid photocatalytic membrane for sulphamethoxazole degradation","authors":"Kipchumba Nelson ,&nbsp;Achisa C. Mecha ,&nbsp;Anil Kumar","doi":"10.1016/j.rinma.2025.100750","DOIUrl":"10.1016/j.rinma.2025.100750","url":null,"abstract":"<div><div>Antibiotic overuse combined with increased water demand has had a detrimental effect on the ecosystem, leading to water contamination and scarcity. N-TiO₂-PVDF, or nitrogen-doped titanium dioxide polyvinylidene fluoride membrane, was synthesized and its performance evaluated in order to address the growing problem of antibiotic-induced water contamination. The impact of the initial sulphamethoxazole (SMZ) concentration and solution pH were assessed. Additionally, the N-TiO₂-PVDF's durability and reusability were assessed. At solution pH of 4, the highest SMZ degradation efficiency 81.3 %, and relative flux of 0.78 (552ml/7cmD/hr flux) were achieved. This was attributed to enhancement of surface charges and antifouling capability of N-TiO₂ nanoparticles. The total organic carbon (TOC) removal was 65 % at pH 7. At SMZ concentration of 6 mg/l a degradation was 69.9 % and 0.73 relative flux (518.4ml/7cmD/hr flux). The N-TiO₂-PVDF membrane was recovered and reused repeatedly in five cycles and a minimal drop in performance was observed: notably, a reduction in 10.1 % degradation efficiency, 13.6 % for TOC reduction and 0.29 for relative flux (205ml/7cmD/hr flux). The flux recovery ratios were above 0.97 with a total fouling ratio of 0.316. The performance was dependent on the level of N-TiO₂ inactivation, competition for radicals and amounts of foulants. The study demonstrates that solar photocatalytic N-TiO₂-PVDF membrane are effective, robust and durable. The valuable information gathered can direct the use and scaling up of photocatalytic membranes in the treatment of water and wastewater.</div></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"27 ","pages":"Article 100750"},"PeriodicalIF":0.0,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144831059","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}

{"title":"Thermal annealing effects on the interaction between chromium and silicon carbide in a vacuum environment","authors":"T.T. Thabethe ,&nbsp;U. Dockrat ,&nbsp;T.B. Mashabela ,&nbsp;T.B. Kadi ,&nbsp;M.N. Mirzayev ,&nbsp;G.T. Imanova ,&nbsp;E. Demir ,&nbsp;C. Maepa","doi":"10.1016/j.rinma.2025.100749","DOIUrl":"10.1016/j.rinma.2025.100749","url":null,"abstract":"<div><div>This study examines the morphological, structural, and chemical changes in Cr thin films deposited on SiC substrates and subjected to vacuum annealing at 700 °C, 800 °C, and 900 °C for 2 h. Cr thin films, approximately 250 nm thick, were deposited using the e-beam deposition technique. Post-annealing, additional phases, including chromium carbides and chromium oxides were identified, while Cr₃Si persisted as a stable phase across all temperatures. Morphological analysis showed that the as-deposited films were characterized by a uniform surface with finely distributed granules. Annealing at 700 °C increased grain size while retaining surface homogeneity. At 800 °C and 900 °C, the films exhibited significant grain growth and surface roughening, with the roughness increasing from 1.63 nm (as-deposited) to 13.8 nm at 900 °C. Additionally, localized segregation and nonhomogeneous surface features emerged at higher temperatures. XRD analysis revealed lattice expansion in the SiC substrate after annealing, indicating structural changes driven by thermal effects. The study highlights the influence of annealing on phase transformations, surface morphology, and structural integrity in Cr/SiC systems. These findings provide a deeper understanding of the thermal behavior of Cr/SiC composites, which is critical for optimizing their performance in high-temperature applications.</div></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"27 ","pages":"Article 100749"},"PeriodicalIF":0.0,"publicationDate":"2025-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144852926","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}

{"title":"Surface quality evaluation of electrical discharge machined AZ31 magnesium alloy","authors":"Saeed Asghari ,&nbsp;Mohammad Reza Shabgard ,&nbsp;Maghsoud Shalvandi ,&nbsp;Farzad Habibi","doi":"10.1016/j.rinma.2025.100751","DOIUrl":"10.1016/j.rinma.2025.100751","url":null,"abstract":"<div><div>This research optimizes electrical discharge machining (EDM) of AZ31 magnesium alloy by investigating pulse-on time (6.4–400 μs) and peak current (12–48 A) by the aid of image processing technique and phase identification. Higher energy inputs increased material removal and tool wear rates but also raised crack density (up to 5.2 %) and surface roughness (R_a up to 16.41 μm). Crucially, pulse-on times below 10 μs eliminated surface cracks entirely. Minimal roughness (R_a = 1.53 μm) occurred at 12A/6.4μs, while surface hardness rose to 152 HV at high energies due to alloying. Metastable Mg₂C₃ carbide was identified via XRD as a product of rapid EDM cooling. Multi-objective optimization recommends 24A/25μs for balanced efficiency (MRR: 4.2 mm³/min) and surface quality (R_a: 2.87 μm, 0.3 % cracks), while 12A/6.4 μs is ideal for biomedical implants.</div></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"27 ","pages":"Article 100751"},"PeriodicalIF":0.0,"publicationDate":"2025-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144826993","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}

{"title":"Modulating physical properties of ASnF3 (A = K, Rb) perovskites under pressure: Insights for enhanced optoelectronic performance via first-principles","authors":"Md N.J. Rifat ,&nbsp;Mohammad Nazmul Hasan ,&nbsp;Jahid Kabir Rony ,&nbsp;Md Murshidul Islam ,&nbsp;Md Saiduzzaman ,&nbsp;Minhajul Islam","doi":"10.1016/j.rinma.2025.100747","DOIUrl":"10.1016/j.rinma.2025.100747","url":null,"abstract":"<div><div>Researchers have become interested in inorganic metal halide perovskites due to their widespread use in numerous engineering and scientific fields. Given their significance, the fundamental physical properties of metal halide fluoroperovskites ASnF₃ (A = K, Rb) were investigated under applied pressure using density functional theory (DFT). The primary aim of this study is to enhance the distinct physical characteristics of these compounds by applying hydrostatic pressure, leading to a reduction in the electronic band gap. The Goldschmidt tolerance factor, formation energy, and Born stability criteria are used to verify the structural, thermodynamic, and mechanical stabilities, respectively. Furthermore, the lattice dynamical stability is confirmed by analyzing the phonon dispersion curves. The calculated lattice constant of RbSnF₃ (4.77 Å) is in excellent agreement with the previously reported value of 4.765 Å. As pressure increases, leading to enhanced atomic contact, the lattice constant, volume, and bond length exhibit a steady decrease. Within the 0–9 GPa pressure range, KSnF₃'s band gap diminishes from 1.838 eV to 1.100 eV, while RbSnF₃'s band gap reduces from 1.835 eV to 1.010 eV. The band gap values exhibit a noticeable enhancement when calculated using the GGA-RPBE functional, yielding 2.080 eV for KSnF₃ and 2.114 eV for RbSnF₃ at 0 GPa pressure. The PDOS and TDOS was analyzed to see the contribution of electrons in each compound with applied pressure. A variation in optical properties is seen due to applied pressure which makes them efficient for optoelectronic devices. The conduction spectrum becomes higher with applied pressure due to the reduction in band gap. The mechanical properties of the compounds directly reflect their ductile and anisotropic characteristics, both of which are significantly influenced by external pressure. Analysis of the elastic functions indicates that these compounds become even more versatile for various potential applications when subjected to hydrostatic pressure. The hardness (H_V) values follow the trend RbSnF₃ &gt; KSnF₃, whereas the machinability index (B/C₄₄) exhibits the opposite trend, with KSnF₃ &gt; RbSnF₃ across the entire applied pressure range. We hope that this investigation makes a meaningful contribution to non-toxic halide perovskite materials research and serves as a foundation for future studies.</div></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"27 ","pages":"Article 100747"},"PeriodicalIF":0.0,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144763932","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}

{"title":"Exploration of polaron dynamics in Lagerstroemia speciosa (L.): Microstructure and semiconducting nature of novel organic system","authors":"Jiban Ghosh ,&nbsp;Anil Chamuah ,&nbsp;Mir Sahidul Ali ,&nbsp;Munna Mukhia ,&nbsp;Sanjib Bhattacharya","doi":"10.1016/j.rinma.2025.100746","DOIUrl":"10.1016/j.rinma.2025.100746","url":null,"abstract":"<div><div>Lagerstroemia speciosa (L.), commonly known as Jarul or Banaba has been reported first time to explore their microstructure and electrical conductivity spectra when placed at various illuminated light waves of 0–200 W. A distinct phase shift is observed during this process. Stable structure has been achieved from Thermogravimetric analysis and differential thermogravimetric curves, when it is illuminated with 100 W light wave. Nature of capacitance of such organic semiconductor may be suitable candidate for low cost energy storage materials. Here, polaron hopping is observed due to the presence of MoS₂ in bulk as well as nanophase forms.</div></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"27 ","pages":"Article 100746"},"PeriodicalIF":0.0,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144696644","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}

{"title":"Optimization of shear enhanced rolling parameters for grain refinement in magnesium AZ31B alloys","authors":"Islam H. Abdelgaliel ,&nbsp;Ahmed S. Abou Taleb ,&nbsp;K.I. Elkhodary ,&nbsp;Mohamed F. Aly","doi":"10.1016/j.rinma.2025.100745","DOIUrl":"10.1016/j.rinma.2025.100745","url":null,"abstract":"<div><div>Shear enhanced rolling (SER) is a novel patented technique that aims to enhance the grain uniformity across the rolled section, hence improve the mechanical properties in terms of yield. SER depends on applying a transverse loading (TL) between a two-stage conventional rolling setup. Shearing stresses are influenced due to this TL at the core of the rolled section leading to a finer and more uniform grain size distribution across the section. Previously, A comparison between conventional rolling and SER was conducted on magnesium alloy AZ31B to prove the concept of SER. In this manuscript, the optimal setup of SER is investigated by optimizing the vertical displacement of the TL, termed SER-V. The optimal SER-V is found to be the value that allows for maximum contact between the rollers and the rolled billet. Using analytical geometry and MATLAB, the analytical value of SER-V is obtained for any SER setup. To validate the new finding, a computational comparison between adjusted SER setups (for two rolling spans), conventional rolling, and conventional rolling with maximum rolling draft, is conducted using ABAQUSExplicit. Knowing that Mg AZ31B obeys the Hall-Petch relationship, the grain sizes were calculated along the cross-section. The results confirmed that the optimized SER setups exhibit the best grain uniformity and yielding strength, achieving this advantage in a single rolling pass. Finally, this work clarifies that SER produces enhanced mechanical properties in a manner that is cost saving relative to conventional rolling options.</div></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"27 ","pages":"Article 100745"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144563614","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}

{"title":"First principles calculations of structural, thermophysical, dynamical, electronic and optical properties of the intermetallic compound CoSi","authors":"Maruf Md Rabbani Paramanik","doi":"10.1016/j.rinma.2025.100743","DOIUrl":"10.1016/j.rinma.2025.100743","url":null,"abstract":"<div><div>Cobalt monosilicide has attracted significant attention due to the topological nature of its electronic band structure. Apart from electronic structure analyses, most of the fundamental physical characteristics of CoSi, including its elastic, mechanical, acoustic, thermophysical and optical properties, have not yet been thoroughly examined. For the first time, this work explores these yet unexamined properties through density functional theory (DFT) based first-principles approach. Analyses of calculated elastic properties indicate that CoSi is a mechanically stable, machinable, ductile and comparatively hard material with the existence of metallic/ionic bonding between atoms. No imaginary or negative frequency branch exists near the high symmetry points, which implies that the structure is dynamically stable. The investigation of thermophysical properties, including Debye temperature, acoustic properties, Grüneisen parameter, heat capacity, thermal expansion coefficient, melting temperature and dominant phonon mode, also suggests the hard nature of CoSi. The electronic band structure and density of states calculations reveal metallic behavior with clear topological signature. The optical parameters are analyzed across various photon energies. CoSi exhibits excellent reflective nature over a broad band of photon energies. The compound also absorbs ultraviolet radiation efficiently. Moreover, the refractive index of the compound is relatively high in the low energy levels. All the optical parameters display metallic characteristics and are entirely consistent with the electronic density of states calculations.</div></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"27 ","pages":"Article 100743"},"PeriodicalIF":0.0,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144313427","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}

{"title":"Characteristic evaluation of polypropylene matrix composite reinforced with Corypha taliera fruit fibers","authors":"Mohammad Abul Hasan Shibly ,&nbsp;Khandaker Akil Mahadi Ohi ,&nbsp;Md Hasin Arman ,&nbsp;Taslima Ahmed Tamanna ,&nbsp;Md Mehedi Hasan ,&nbsp;Md Abdus Sabur ,&nbsp;Md Abdul Gafur","doi":"10.1016/j.rinma.2025.100744","DOIUrl":"10.1016/j.rinma.2025.100744","url":null,"abstract":"<div><div>This study explores the properties and potential applications of polypropylene matrix composites reinforced with <em>Corypha Taliera</em> Fruit (CTF) fibers, focusing on enhancing mechanical, thermal, and morphological characteristics through alkali treatment. Fibers treated with varying concentrations of NaOH (2 %, 4 %, and 6 %) exhibited notable improvements in fiber rigidity, and interfacial bonding with the polypropylene matrix. 2 % NaOH exhibited the most balanced and notable improvements, making it the most effective treatment for enhancing mechanical properties without causing structural degradation seen at higher concentrations like 6 %. Mechanical testing revealed that the 30:70 fiber-to-matrix ratio provided optimal impact (17.86 ±2.12 kJ/m²) and load-bearing capacity, tensile (17.19 ± 1.13 MPa) and flexural strength (31.67 ± 1.95 MPa). SEM analysis confirmed enhanced fiber-matrix adhesion and reduced micro-void formation, contributing to better stress transfer and toughness. FTIR and XRD results indicated significant removal of hemicellulose and lignin, increasing cellulose crystallinity, while thermal analysis demonstrated improved stability, with higher degradation onset temperatures post-treatment. The findings suggest that CTF fibers, as sustainable reinforcements, offer viable alternatives to synthetic fibers for applications in automotive, aerospace, and construction industries, aligning with global sustainability goals. Future research should focus on optimizing alkali treatment parameters and exploring long-term environmental durability of these composites.</div></div>","PeriodicalId":101087,"journal":{"name":"Results in Materials","volume":"27 ","pages":"Article 100744"},"PeriodicalIF":0.0,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144330858","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}