Results in Chemistry最新文献

{"title":"Homocoupling reaction of p-tolylboronic acid with palladium-hydroxyapatite composite from chicken eggshell as the catalyst","authors":"Dea Putri Novianti ,&nbsp;Muhamad Rashifari ,&nbsp;Muhammad R. Ramadhan ,&nbsp;Iis Intan Widiyowati ,&nbsp;Puteri Khansa Salsabila ,&nbsp;Ardanari Wahyu Waardhani ,&nbsp;Muhamad Diki Permana ,&nbsp;Atiek Rostika Noviyanti ,&nbsp;Yudha P. Budiman","doi":"10.1016/j.rechem.2025.102297","DOIUrl":"10.1016/j.rechem.2025.102297","url":null,"abstract":"<div><div>Biaryl compounds, consist of two aromatic rings linked by a single bond, are crucial in the synthesis of antiviral drugs, antifungal agents, functional materials, and agrochemicals. Traditionally, these compounds are synthesized through cross-coupling reactions using two different types of aryl reagents. However, homocoupling reactions have emerged as a valuable alternative, enabling the production of symmetric biaryls from a single aryl substrate. This study explores the development of a heterogeneous palladium-hydroxyapatite (Pd-HAP) catalyst for the homocoupling of arylboronic acids. Hydroxyapatite, known for its hydroxyl-rich surface, high porosity, and strong acid-base sites, was selected as a cost-effective catalyst support. The research focused on optimizing solvent and temperature to maximize biaryl yields. Under optimal conditions ethanol as the solvent at 50 °C for 24 h, an 88 % yield of biaryl products was achieved. The recycled catalyst maintained a yield of 42 % after five reuses. These findings contribute to more sustainable and cost-effective approaches for biaryl synthesis.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"15 ","pages":"Article 102297"},"PeriodicalIF":2.5,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878912","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":"Theoretical study of the sequence-dependent distribution of Na+ ions around DNA","authors":"Hui-ting Xu ,&nbsp;Xiao-wei Jiang ,&nbsp;Yu-jie Song ,&nbsp;Bin Gu","doi":"10.1016/j.rechem.2025.102290","DOIUrl":"10.1016/j.rechem.2025.102290","url":null,"abstract":"<div><div>Sodium ions play a crucial role in diverse biological processes. This study focuses on the sequence-dependent distribution of sodium ions around DNA, utilizing the bsc0 force field to simulate and accurately replicate the conformational changes observed in Raman spectroscopy experiments, and provides an explanation for the phenomenon of bimodal distribution of pAC sequences. Molecular dynamics simulations revealed that Na⁺ ions exhibiting unique distributions in pAA, pGA, and pGG oligomers. These ions progressively shift from the phosphate group and minor groove towards the G-tract region of the major groove. Significantly, the pGC sequence exhibits a transition in Na⁺ ion distribution from the major to minor grooves. The overall binding of sodium ions to the pAC sequence is weak. The pAT sequence reduces the ionic affinity in the groove, and a small portion is distributed near the ATA·TAT base order in the minor groove. The study determined a 75 % neutralization rate across DNA oligonucleotides, independent of sequence. Analyses of weak interactions revealed stable G·C and A·T hydrogen bonds alongside diminished C-H···O bonds, and a reduction in base pair stacking interaction with sequence variation. Sodium ions bind to DNA with over 95 % electrostatic interaction energy, the pAA oligomer exhibits the lowest interaction energy. The distribution of water molecules around DNA is less affected by sequence. The study provides a deep atomic-level understanding of the behavior of sodium ions around DNA.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"15 ","pages":"Article 102290"},"PeriodicalIF":2.5,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878911","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":"Revealing the potential of functionalized FeS2 composites as efficient photocatalysts for improved removal of cationic and anionic dyes","authors":"Vahid Mohammadbeigi,&nbsp;Ebrahim Allahkarami,&nbsp;Amirreza Azadmehr","doi":"10.1016/j.rechem.2025.102281","DOIUrl":"10.1016/j.rechem.2025.102281","url":null,"abstract":"<div><div>This study investigates the enhancement of pyrite (FeS₂) through functionalization with silanol (SiO₂) and silanol-amino (SiO₂-NH₂) groups to optimize its adsorption and photocatalytic performance for removing cationic (methylene blue, MB) and anionic (methyl orange, MO) dyes. Functionalized core-shell composites, Pyrite@SiO₂ and Pyrite@SiO₂-NH₂, were synthesized via a sol-gel process using tetraethyl orthosilicate (TEOS) and 3-aminopropyl triethoxysilane (APTS). Comprehensive characterization through XRF, XRD, FT-IR, TEM, UV–vis DRS, and BET analysis revealed spherical nanoparticles with smooth surfaces and uniform SiO₂/SiO₂-NH₂ coatings (200–300 nm thick). Functionalization significantly increased the specific surface area from 0.64 m²/g (raw pyrite) to 3.21 m²/g, enhancing pollutant interaction sites. Adsorption dominated over photocatalytic degradation under both UV and dark conditions, with maximum capacities of 36.5 mg/g (MO) and 34.0 mg/g (MB) at 298 K. Kinetic studies aligned with the pseudo-second-order model, while mass transfer analysis identified intraparticle diffusion as the primary mechanism. Although UV irradiation marginally improved dye removal, surface charge modification via SiO₂-NH₂ groups notably enhanced MO adsorption through electrostatic interactions. These findings underscore pyrite's potential as a cost-effective, efficient adsorbent for wastewater treatment, with surface functionalization offering a strategic avenue to tailor affinity for target pollutants, prioritizing adsorption over photocatalytic approaches.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"15 ","pages":"Article 102281"},"PeriodicalIF":2.5,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882670","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":"Synthesis of ubiquinone Q10 (Co Q10) from natural tobacco leaves","authors":"Venkata Manikya Kumar Ajjarapu","doi":"10.1016/j.rechem.2025.102279","DOIUrl":"10.1016/j.rechem.2025.102279","url":null,"abstract":"<div><div>The present research work is aimed to develop a methodology for the synthesis of Ubiquinone Q₁₀ (CoQ₁₀) from the natural tobacco leaves (<em>Nicotiana tabacum</em> L). Solanesol (<em>C</em>_<em>45</em><em>H</em>_<em>74</em><em>O</em>), a product isolated from the natural tobacco leaves and a valuable source for synthesizing metabolically active quinones and other drugs has been considered as the raw material for the synthesis of Ubiquinone. The characteristics of Ubiquinone as an antioxidant, essential for human life and the critical role of Ubiquinone in slowing down the ageing process and its uses in the treatment of heart diseases, cancer and ulcers are also presented. Bromination of solanesol with PBr₃ results in the formation of solanesyl bromide with an extremely high yield (98 %) and on further treatment with reagents such as ethylacetate followed by the hydrolysis and decarboxylation results in the formation of a ketone with an appreciable yield of 72 % has also been explained. The chemical pathways suggested for the synthesis of decaprenol and isodecaprenol with significant and appreciable yield are also summarized in the research paper. Formation of Ubiquinone has been identified by TLC and further purified by employing a C_18, 3.9 mm × 150 mm reverse phase column chromatography with methanol and n-hexane (90:10 <em>v</em>/v). Solvent crystallization in alcohol at <img>20⁰C has been carried out and the isolated ubiquinone is analyzed by HPLC for purity and spectroscopic techniques such as UV, ¹H and ¹³C NMR, FT- IR, and ESI-MS have been employed for the structural elucidation and the details are discussed at length in the research paper.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"15 ","pages":"Article 102279"},"PeriodicalIF":2.5,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143873640","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":"Enhancing desalination performance and antifouling properties of thin film composite nanofiltration membrane via polyacrylic acid incorporating","authors":"Ibtissem Ounifi ,&nbsp;Ali Boubakri ,&nbsp;Sarra Elgharbi ,&nbsp;Ali Rebhi ,&nbsp;Olfa Bechambi ,&nbsp;Amor Hafiane","doi":"10.1016/j.rechem.2025.102282","DOIUrl":"10.1016/j.rechem.2025.102282","url":null,"abstract":"<div><div>This study reports the development of novel polyamide thin-film composite (TFC) nanofiltration (NF) membranes with enhanced antifouling properties. The membranes were fabricated via interfacial polymerization between piperazine (PIP) and trimesoyl chloride (TMC) on a cellulose acetate (CA) ultrafiltration support membrane. A key innovation involved the in-situ incorporation of polyacrylic acid (PAA) into the polyamide selective layer by dispersing it within the aqueous PIP monomer solution. The synthesized membranes underwent comprehensive characterization to elucidate their surface morphology, topography, and hydrophilicity. Additionally, the permeability and separation properties of membranes were evaluated. The results revealed that incorporating PAA into the TFC-NF membranes significantly increased surface roughness and hydrophilicity compared to reference membranes without PAA. The effect of PAA concentration on water permeability was investigated. Interestingly, water permeability increased from 8.5 LMH/bar to 17.9 LMH/bar with increasing PAA concentration from 0 wt% to 0.7 wt%. The order of salt rejection followed the trend: Na₂SO₄ &gt; MgSO₄ &gt; MgCl₂ &gt; NaCl, which can be attributed to the introduction of negative charges of the modified membranes. Notably, the TFC membrane containing 0.5 wt% PAA exhibited the highest salt rejection, achieving 99.65 % rejection for Na₂SO₄ and 70.12 % rejection for NaCl. The antifouling properties of the TFC membranes were evaluated by monitoring their flux decline during bovine serum albumin (BSA) protein solution filtration. The incorporation of PAA into the polyamide layer of the TFC-NF membranes demonstrably improved their fouling resistance due to the increased negative charge, which repels negatively charged foulants like BSA.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"15 ","pages":"Article 102282"},"PeriodicalIF":2.5,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882672","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":"Research on the application of the HPLC/PDA method to enhance the quality standards of Folium nelumbinis based on the bioactive nuciferine and quercetin 3-O-glucuronide","authors":"Sil Thanh Nguyen,&nbsp;Ngan Hong Tran,&nbsp;Yen Phuong Ngo,&nbsp;Vi Lan Le Truong,&nbsp;Tuyet Anh Thi Phan,&nbsp;Hien Trung Do,&nbsp;Tho Vinh Minh Chau Do","doi":"10.1016/j.rechem.2025.102291","DOIUrl":"10.1016/j.rechem.2025.102291","url":null,"abstract":"<div><div>This study enhances quality control standards for <em>Folium Nelumbinis</em>, a medicinal herb in the Vietnamese and Chinese Pharmacopeias. Current standards are insufficient for accurately quantifying key bioactive compounds, nuciferine and quercetin 3-<em>O</em>-glucuronide, which are vital for the plant's pharmacological effects. The quality control standards include sensory characteristics, microscopic features, powder examination, physicochemical properties, limits for heavy metals, and qualitative. Additionally, simultaneous quantification of nuciferine and quercetin 3-<em>O</em>-glucuronide was achieved using HPLC on a GL Inert Sustain C18 column (250 mm × 4.6 mm, 5 μm). The mobile phase, consisting of acetonitrile (A) and 0.1 % triethylamine in water at pH 6.5 adjusted with 30 % acetic acid (B), was used with a flow rate of 1 mL/min and a detection wavelength of 270 nm. A 200 mg <em>Folium nelumbinis</em> powder was extracted with 6.0 mL of methanol and 1 % hydrochloric acid (6:4, <em>v</em>/v) via ultrasonication at 40 kHz and 500 W for 7 min, followed by centrifugation at 6000 rpm for 7 min (repeated three times). Physico-chemical standards studied are moisture content (8.74 %, <em>w</em>/w), impurities (0.74 %, w/w), fragmentation ratio (1.07 %, w/w), and ash content (6.50 %, w/w). The linearity of the calibration curve ranged from 12 to 48 μg/mL for nuciferine and 4–16 μg/mL for quercetin 3-<em>O</em>-glucuronide, and the square of the regression coefficient (r²) was 0.9990 and 0.9954, respectively. The limit of detection and quantification values were determined as 0.45 μg/mL and 1.50 μg/mL for nuciferine and 0.15 μg/mL and 0.50 μg/mL for quercetin 3-<em>O</em>-glucuronide. This research successfully establishes high-quality control standards for Lotus leaves in accordance with WHO guidelines and the Vietnamese Pharmacopoeia V. The validated HPLC method ensures precise and reliable quality control, supporting research consistency and practical herbal medicine application.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"15 ","pages":"Article 102291"},"PeriodicalIF":2.5,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882673","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":"Synthesis and biological evaluation of chalcone derivatives of oxazole-pyrimidines as anticancer agents","authors":"Divya Komirishetti ,&nbsp;Tasqeeruddin Syed ,&nbsp;Vasantha Mittapelli","doi":"10.1016/j.rechem.2025.102294","DOIUrl":"10.1016/j.rechem.2025.102294","url":null,"abstract":"<div><div>We have developed a new library of chalcone derivatives of oxazole-pyrimidines (<strong>16a-j</strong>) and their structures were confirmed by analytical data. Further, in vitro anticancer activity of the newly prepared compounds <strong>16a-j</strong> was assessed against a panel of four human cancer cell lines such as human breast cancer (MCF-7), human lung cancer (A549), human colon cancer (Colo-205) and human ovarian cancer (A2780) by using of MTT method. All the screened compounds displayed remarkable anticancer activity as compared with etoposide used as positive control. Among them, five compounds <strong>16a, 16</strong> <strong>g, 16</strong> <strong>h, 16i</strong> &amp;<strong>16j</strong> possessed more potent activity. Particularly, one compound <strong>16j</strong> with 3,5-dinitro group showed superior activity.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"15 ","pages":"Article 102294"},"PeriodicalIF":2.5,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882674","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":"Artificial intelligence techniques","authors":"Ahmad Gholizadeh,&nbsp;Ali Shabani","doi":"10.1016/j.rechem.2025.102276","DOIUrl":"10.1016/j.rechem.2025.102276","url":null,"abstract":"<div><div>In this study, Fe₃O₄/TiO₂ nanocomposites were synthesized and optimized for enhanced photocatalytic degradation of organic pollutants. The synthesis involved a sol-gel process followed by calcination, forming a core-shell structure to improve charge separation and light absorption. Additionally, surface modifications were applied to enhance catalytic performance. The photocatalytic activity was evaluated under simulated sunlight, considering the effects of pH, initial pollutant concentration, adsorbent dosage, and reaction time on degradation efficiency. The results demonstrated that the Fe₃O₄/TiO₂ composite exhibited superior photocatalytic performance compared to pure TiO₂, achieving a high removal efficiency. Furthermore, the catalyst retained significant activity after multiple reuse cycles, indicating its stability and reusability. To optimize the process, an artificial intelligence (AI)-assisted model was developed to predict removal efficiency based on experimental data. The AI model exhibited strong predictive capabilities, providing a data-driven approach to optimize photocatalytic performance more efficiently than conventional experimental methods. This study highlights the potential of integrating AI with advanced photocatalysts for wastewater treatment and suggests a scalable strategy for industrial applications. The findings pave the way for future research on iron oxide-based composites for environmental remediation.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"15 ","pages":"Article 102276"},"PeriodicalIF":2.5,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882807","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":"Lactic acid separation technologies: Enhancing efficiency and purity using membrane separation technology (mini review)","authors":"Nahla. M. Salatein ,&nbsp;A.M. Abdelghany ,&nbsp;B.M. Elmowafy ,&nbsp;Rawan K. Hassan ,&nbsp;Ahmed F. Omara ,&nbsp;Aziz R. Mansour ,&nbsp;Irene S. Fahim","doi":"10.1016/j.rechem.2025.102280","DOIUrl":"10.1016/j.rechem.2025.102280","url":null,"abstract":"<div><div>The extraction and purification of lactic acid from fermentation processes is crucial for biotechnological product quality and productivity improvement. This mini review focuses on the topic of lactic acid purification processes that incorporate membrane separation technologies. Membrane filtration isolates lactic acid from fermentation broth without energy-intensive distillation. Membrane techniques involve microfiltration, ultrafiltration, and nanofiltration. The advantages of membrane technology are examined, including lower operational expenses, reduced thermal degradation of lactic acid, and the potential for continuous operation. This paper summarizes our research on the use of membrane separation systems, particularly microfiltration and nanofiltration, for the separation and concentration of lactic acids from fermentation broths derived from sugarcane molasses. Based on the data collected during our study, we have decided to implement membrane technology as the primary method for separation in our future work to enhance the overall efficiency and sustainability of LA production. This integration is expected to improve both the yield and purity of LA, making the production process more economically viable. Consequently, the adoption of these advanced filtration techniques could lead to a more sustainable approach in the bioprocessing industry.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"15 ","pages":"Article 102280"},"PeriodicalIF":2.5,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855229","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":"Chemically reactive bioconvection flow of Powell-Eyring hybrid nanofluid (HNF) over a Riga plate with gyrotactic microorganisms and thermal radition","authors":"Sohail Rehman","doi":"10.1016/j.rechem.2025.102284","DOIUrl":"10.1016/j.rechem.2025.102284","url":null,"abstract":"<div><div>This work explores the bioconvective flow of a Powell-Eyring HNF (<span><math><mi>Go</mi></math></span>-<span><math><mi>A</mi><msub><mi>l</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub></math></span>) over a Riga plate to improve thermal efficiency in biomedical devices, cutting-edge cooling systems, and applications utilizing renewable energy by combining electromagnetic actuation, nanoparticle-microorganism interactions, and non-Newtonian rheology in an efficient way. The model include the activation energy, radiating heat, Brownian and thermophoresis and motile microorganasim features. The model include single and two-phase NF models which account the Brownian, thermophoresis and nanomaterials load in a working fluid. The Rungg-Kutta numerical scheme is used to solve the system of dimensionless eqs. A comparative study has been done to examine the behavior of HNF and NF. The findings indicate that HNF exhibits high temperatures and concentration profiles than NF. The fluid velocity and drag coefficient display inverse trend against Hartman number. The chemical reaction parameter resulted in a significant increase in the Sherwood number with a high rate of 15.5 %. An increase in the Nusselt number with a high rate of 18.3 % due to higher Eckert number indicate frictional heating dominant effect. Effect of bioconvection Lewis and Peclet number on concentration are conflicting. The influence of Brownian parameter on Nusselt number with a decreased rate to 0.7 % indicate system coolong. The Sherwood number is the sensitive for activation energy and chemical reaction parameter. This work leverages the special characteristics of gyrotactic microorganisms in HNF to optimize heat and mass transfer in manufacturing and biomedical systems, such as microfluidics, bio-reactors, and energy-effective operations.</div></div>","PeriodicalId":420,"journal":{"name":"Results in Chemistry","volume":"15 ","pages":"Article 102284"},"PeriodicalIF":2.5,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852057","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}