Journal of The Chinese Chemical Society最新文献

{"title":"Iron oxide quantum dots-based fluorescence probe for rapid and selective cytosine sensing","authors":"Sri Sudewi,&nbsp; Ruslin,&nbsp; Fatimawali,&nbsp;Muhammad Zulfajri,&nbsp;Hsuan-Ying Chen,&nbsp;Genin Gary Huang","doi":"10.1002/jccs.202400134","DOIUrl":"https://doi.org/10.1002/jccs.202400134","url":null,"abstract":"<p>The application of iron oxide quantum dots (IOQDs) in this study led to the development of a straightforward, easy, and selective approach for cytosine sensing. To examine the capability of IOQDs in detecting nucleobases, attempts have been made to gain insight into the characteristics of IOQDs, including UV/Vis spectroscopic analysis, infrared spectroscopy, fluorescence spectroscopy, transmission electron microscopy, and powder-XRD. We introduced IOQDs with a mean particle size distribution of 5.71 ± 0.08 nm for detecting cytosine by harnessing a turn-on fluorescence phenomenon. The fostering fluorescence response of IOQDs was triggered in the presence of cytosine. In comparison, the presence of other nucleobases did not further induce the fluorescence signal of IOQDs. It was concluded that the hydrogen bonding bridging the carboxylate and hydroxyl groups on the surface of QDs with the amine groups of cytosine results in the elevation of IOQDs fluorescence.</p>","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142021747","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":"Selective detection of ketamine in human urine samples by electrochemiluminescence sensor based on conductive molecular imprinted polypyrrole: A hydrogen peroxide-free electrochemiluminescence assay","authors":"Farzane Ahmadi,&nbsp;Naader Alizadeh","doi":"10.1002/jccs.202400151","DOIUrl":"10.1002/jccs.202400151","url":null,"abstract":"<p>A new sensor was fabricated for the determination of ketamine (Ket) in urine samples based on enhanced electrochemiluminescence (EECL) behavior of luminol on a carbon paste electrode (CPE) modified with the conductive molecularly imprinted polymer (CMIP) film. The FESEM technique was applied to demonstrate the rod shape morphology of CMIP. Unlike the common luminol system, EECL signal of luminol no need to addition of hydrogen peroxide and it might find application in efforts to avoid instability of hydrogen peroxide or its interference with the analytes of interest. The EECL emission has been optimized by an investigation of the applied potentials, electrochemical polymerization conditions, template and modifier concentrations, and the pH solution. Under the optimum conditions, the EECL signal depended linearly on the Ket concentration within a range from 0.1 to 1.25 μM with a limit of detection (LOD) of 0.08 μM. The sensor exhibited very good recovery percentages ranging from 92% to 101% in urine samples, while precisions were ≤3%. These results suggested that the proposed sensor would be applicable for analysis Ket in complex matrixes without interfering of other drugs (anesthetics) and thus has the potential to be used in clinical application.</p>","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213615","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":"Special Issue: Frontier Precise Measurement","authors":"Yu-Ju Chen,&nbsp;Wei-Lung Tseng,&nbsp;Zhiqin Yuan","doi":"10.1002/jccs.202400249","DOIUrl":"https://doi.org/10.1002/jccs.202400249","url":null,"abstract":"<p>Precision measurement has become an indispensable tool in modern scientific research, pushing the boundaries of our understanding across various analytical chemistry fields, including mass spectrometry, optical sensors, electrochemical detection, sample preparation, and software development. As technological advancements accelerate, the demand for highly accurate and reliable measurement techniques grows more critical. These precise measurements enable researchers to explore phenomena at unprecedented scales, from the subatomic level to macroscopic systems, providing insights that drive innovation and discovery. For this reason, we have invited leading experts to contribute their cutting-edge work, showcasing a broad spectrum of innovative methodologies and technologies that significantly advance the field of precision measurement. This special issue on “Frontier Precise Measurement” aims to highlight the latest developments and applications in this dynamic area of research.</p><p>In this special issue, we have invited chemists from a broad range of disciplines and expertise to showcase the diversity and activity of chemical and biological measurement. The issue features a diverse collection of articles covering various topics in precision measurement, including extraction, spectroscopy, sensors, electrochemical detection, mass spectrometry, and software development. The articles on novel extraction methods highlight advancements in the field, such as the work by <b>Xia Liu</b> on the synthesis, extraction, and purification of theaflavins. <b>Jing Chen</b> presents the development of magnetic solid phase adsorption techniques using novel composite materials. <b>Xueqin Ding</b> refines genomic DNA extraction methods for genetic analysis in wild boar populations. <b>Hui-Ling Li</b> explores using magnetic nanocomposites for the solid phase extraction of parabens. Spectroscopy is well-represented with studies like <b>Yuelin Song</b>'s examination of the three-dimensional MS² spectrum for bile acid isomer differentiation.</p><p>The sensor-related articles cover a broad spectrum of innovative detection methods. <b>Zhiqin Yuan</b> explores morin as a ratiometric fluorescent probe for dopamine detection. <b>Qing Zhou</b> enhances electron transfer for ultrasensitive H₂O₂ detection. <b>Zhanjun Yang</b> develops an electrochemical immunosensor for detecting bovine interferon-gamma using gold nanoparticles. <b>Rui Zou</b> improves the electrochemiluminescence properties of graphite carbon nitride. <b>Dong Xu</b> develops a colorimetric sensor for lead ion detection using gold nanorods. <b>Ruizhuo Ouyang</b> explores the advancements in using perovskite materials for sensor applications. <b>Wei-Bin Tseng</b> focuses on the selective colorimetric detection of inorganic arsenic using homocysteine-modified gold nanoparticles. <b>Jun-Ying Huang</b> introduces a fluorescence probe based on iron oxide quantum dots for cytosine ","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jccs.202400249","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142021757","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":"MAXTOF: An efficient calculation tool for precise optimization of MALDI-TOF MS measurements in real time","authors":"Ko-Keng Chang,&nbsp;Yi-Yu Ko,&nbsp;Po-Yu Chou,&nbsp;Szu-Hsueh Lai,&nbsp;Yi-Sheng Wang","doi":"10.1002/jccs.202400124","DOIUrl":"https://doi.org/10.1002/jccs.202400124","url":null,"abstract":"<p>An efficient calculation tool for rigorously optimizing the instrument parameters of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) is demonstrated in this work. Optimization of MALDI-TOF MS has been an experience-based, time-consuming process without a rigorous theoretical principle. Based on the comprehensive calculation model reported previously, we developed a software tool, MAXTOF, to rapidly determine instrument parameters providing ultimate mass resolving power (MRP). The software conducts big data analysis of most instrument parameters to predict the MRP, including instrument dimensions, voltages, mass-to-charge ratio of ions, and ion extraction delay. It can complete the calculation in seconds, providing parameters that serve as the starting point for subsequent optimization that greatly accelerates the optimization process. Experimental validation using a commercial instrument demonstrates MAXTOF's efficacy in predicting optimal parameters and enhancing MRP. The predicted ion extraction delays for bradykinin fragment, P₁₄R polypeptide, and insulin chain B ions were within 5% of the values observed through long-term optimization. The observed MRP of those ions ranged from 2800 to 4500. Results show that the method and software are highly advantageous for fast and precise measurements.</p>","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jccs.202400124","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142021758","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":"RAFT copolymerization of methyl methacrylate and di(ethylene glycol) methyl ether methacrylate in a hexylpyridinium ionic liquid","authors":"Ludhovik Luiz Madrid,&nbsp;Ser John Lynon Perez,&nbsp;Susan Arco","doi":"10.1002/jccs.202400197","DOIUrl":"10.1002/jccs.202400197","url":null,"abstract":"<p>Smart polymers undergo significant physical or chemical changes in response to stimuli like temperature and pH. Achieving a narrow molecular weight distribution is crucial for their sensitivity. Reversible addition–fragmentation chain transfer (RAFT) in ionic liquids is an effective method for synthesizing such polymers due to its favorable kinetics and environmental benefits. Most studies use imidazolium ionic liquids, while pyridinium ionic liquids are less common despite their easy synthesis. This study reports the first successful RAFT copolymerization of di(ethylene glycol) methyl ether methacrylate (DEGMEMA) and methyl methacrylate in <i>N</i>-hexylpyridinium hexafluorophosphate ([HPY][PF₆]). Both linear and hyperbranched copolymers (<i>M</i>_<i>n</i> &gt; 25,000) with narrow molecular weight distribution were synthesized, showing observable temperature responses and biocompatibility. The linear copolymers had a desirable dispersity (<i>Ð</i>) of less than 1.10, while the hyperbranched copolymer had a <i>Ð</i> of 2.034. The lower critical solution temperatures (LCSTs) of the copolymers were close to or below the LCST of PDEGMEMA (26°C). This study indicates that pyridinium ionic liquids can be explored as a suitable solvent for synthesizing methacrylate-based smart polymers.</p>","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141920524","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":"Unlocking the potential of carbon quantum dots: Versatile photocatalysts for methylene blue degradation—A comprehensive review of synthesis, catalytic mechanisms, and environmental applications","authors":"Farhad Ali,&nbsp;Lyn Marie De Juan-Corpuz,&nbsp;Ryan D. Corpuz","doi":"10.1002/jccs.202400112","DOIUrl":"10.1002/jccs.202400112","url":null,"abstract":"<p>Carbon Quantum Dots (CQDs) are nanoscale carbon-based particles with unique quantum properties. Because of their customizable size, optical properties, and surface functions, CQDs are frequently used in a wide range of applications. The present thorough analysis delves into the crucial function of CQDs in the photocatalytic breakdown of Methylene Blue (MB), providing valuable perspectives on their production, attributes, and catalytic processes. The effects of pH, wavelength, intensity, and other variables on the effectiveness of MB degradation are covered in detail. An analytical review of the kinetic models used to estimate the deterioration process is given. For improved stability and recyclability, the synergistic effects of CQD-based composites and developments in catalyst immobilization techniques are examined. Prospects for the future center on reactor designs, integration into large-scale water treatment systems, and optimization of CQD features. The research highlights the revolutionary potential of CQDs in transforming wastewater treatment and advancing environmentally sound solutions.</p>","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141922651","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":"Design and development of an azo dye-based ultra-sensitive chemosensor for the ubiquitous organic anion in aqueous solutions","authors":"Hossein Tavallali,&nbsp;Mastaneh Ostovar,&nbsp;Abolfath Parhami,&nbsp;Mohammad Ali Karimi","doi":"10.1002/jccs.202400073","DOIUrl":"10.1002/jccs.202400073","url":null,"abstract":"<p>Oxalate plays a crucial role in various biological and industrial applications. Its involvement in diseases, drug- and toxin-induced disorders, and disruption of industrial processes makes it a high-priority chemical for the development of more precise, selective, and straightforward analytical methods. Herein, an innovative and efficient strategy for sequentially measuring Cu²⁺ and oxalate ions is reported. During an indicator displacement process, where Cu²⁺ and azo dye, ArsenazoIII (AAIII), are used as receiver and indicator, respectively, oxalate (C₂O₄²⁻) is measured by a colorimetric method. Proof of concept results from UV–visible spectroscopy, naked eye, and signal reset of the indicator revealed a more robust interaction of the Cu²⁺ receptor with C₂O₄²⁻ than the AAIII indicator with high selectivity, good sensitivity, and lower detection limit(4.01 × 10⁻⁸ and 3.04 × 10⁻⁹mol L⁻¹, for Cu²⁺ and C₂O₄²⁻, respectively). The results of measuring C₂O₄²⁻ in actual samples (urine, mushrooms, and spinach) showed the applicability of the existing method. Most importantly, the colorimetric system based on molecular exchange in the indicator dislocation proceeding can serve as a colorimetric INHIBIT logic-gate. It works like a molecular keypad lock system that can be controlled by two users with two different sets of chemical passwords (inputs) that can be identified through optical paths.</p>","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141969889","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":"Determination of linear alkyl benzene sulfonates in vegetable by modified QuEChERS coupled to liquid chromatography-tandem mass spectrometry","authors":"Sarawinda Hutagalung,&nbsp;Yohanes Ariesto,&nbsp;Yen-Hsien Li,&nbsp;Sio-Leng Wong,&nbsp;Chung-Yu Chen,&nbsp;Maw-Rong Lee","doi":"10.1002/jccs.202400176","DOIUrl":"10.1002/jccs.202400176","url":null,"abstract":"<p>Linear alkyl benzene sulfonates (LASs) with alkyl chains from C₁₀ to C₁₄ are the most commonly used anionic surfactants in household laundry. However, LAS toxicity toward agricultural soil further could be formed at a risk for fruits and vegetables grown on the land, so that to develop a sensitive and precise analytical technique for determination of trace residual sulfonates in vegetables is very important for health. This study developed a QuEChERS extraction coupled to liquid chromatography–tandem mass spectrometry (LC–MS/MS) method for analyzing LASs in vegetables and fruits. The best results were obtained using acetonitrile as the extraction solvent combined with 25 mg primary secondary amine and 25 mg graphitized carbon black as sorbents. The linearity ranged between 1 and 250 ng/mL as well as limit of quantification (LOQ) was obtained in the range of 0.01–0.23 ng/mL of the proposed analytical method. The proposed method was utilized to detect the real spinach samples and water spinach planted with LASs-spiked water, and the results showed the trace LASs were detected with concentration between 1.8 and 29.1 ng/g. In this study, a thorough optimization and validation of different amount of sorbent cleanup efficiency approaches was performed for the first time for the analysis of LAS.</p>","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141944776","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":"A review on photocatalytic degradation of aromatic organoarsenic compounds in aqueous environment using nanomaterials","authors":"Stephen Sunday Emmanuel,&nbsp;Ademidun Adeola Adesibikan","doi":"10.1002/jccs.202400209","DOIUrl":"10.1002/jccs.202400209","url":null,"abstract":"<p>Aromatic organoarsenic compounds (AOCs) have proven to be both a boon and a curse by boosting profit maximization in livestock production and at the same time contributing to the pollution of water bodies, the chief cornerstone of the ecosystem. Interestingly, photocatalytic degradation using nanomaterials has emerged as an effective method to mitigate AOC pollution. Thus, this study aims to review and analyze original research works directed toward the photocatalytic degradation of AOC in the aqueous environment. In this study, the photocatalytic degradation efficiency of various nanomaterials is investigated for different aromatic organoarsenic compounds. In addition, an empirical analysis was conducted on the impact of electron trapping and radical scavengers. Furthermore, photocatalytic degradation kinetics and mechanisms were pragmatically discussed. Also, recyclability, stability, and real-life applicability were empirically evaluated. According to this review, most nanomaterial materials had maximal photocatalytic degradation efficiencies of &gt;75% for most AOCs within an average time of 6–330 min. The radical scavenging study revealed that ^●OH and O₂^● mechanistically play a major role in AOC degradation than electrons and holes. Additionally, it was shown that expended photocatalysts can be eluted mostly with H₂O/NaOH and recycled up to 3–6 rounds with a degradation efficiency of &gt;80% in most cases while maintaining their original structural integrity. This indicates that the method has the potential to be both environmentally friendly and industrially scalable. Ultimately, research gaps were highlighted, which can help researchers identify future research hotspots and open doors for technique advancement.</p>","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141969351","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":"Synthesis, molecular docking, drug-likeness analysis, and ADMET prediction of nickel and zinc tetraphenyl-porphyrin complexes as possible antioxidant agents","authors":"Elhafnaoui Lanez,&nbsp;Lalmi Zerrouk,&nbsp;Lazhar Bechki,&nbsp;Touhami Lanez,&nbsp;Aicha Adaika,&nbsp;Nadjiba Zegheb,&nbsp;Kaouther Nesba","doi":"10.1002/jccs.202400167","DOIUrl":"10.1002/jccs.202400167","url":null,"abstract":"<p>Nickel tetraphenyl-porphyrin (NiTPPH₂) and zinc tetra(4-methophenyl)-porphyrin (ZnTPPH₂(p-methyl)) were successfully synthesized and characterized using ¹H NMR spectroscopy. Their antioxidant activities and interactions with the superoxide anion radical (<span></span><math>\u0000 <mrow>\u0000 <msubsup>\u0000 <mi>O</mi>\u0000 <mn>2</mn>\u0000 <msup>\u0000 <mo>•</mo>\u0000 <mo>_</mo>\u0000 </msup>\u0000 </msubsup>\u0000 </mrow></math>) were evaluated using cyclic voltammetry. Remarkably, NiTPPH₂ displayed superior antioxidant activity with an IC₅₀ value of 54.57 μg mL⁻¹, significantly outperforming α-tocopherol (IC₅₀ = 353.27 μg mL⁻¹), indicating its potential as a potent antioxidant. Binding free energy calculations demonstrated that electrostatic interactions predominantly govern the binding, with values of −23.47 kJ mol⁻¹ for NiTPPH₂ and −22.50 kJ mol⁻¹ for ZnTPPH₂(p-methyl). These values suggest robust binding affinities with <span></span><math>\u0000 <mrow>\u0000 <msubsup>\u0000 <mi>O</mi>\u0000 <mn>2</mn>\u0000 <msup>\u0000 <mo>•</mo>\u0000 <mo>_</mo>\u0000 </msup>\u0000 </msubsup>\u0000 </mrow></math>. Quantum chemical parameters, obtained through density functional theory (DFT), showed a strong correlation with experimental results, validating the computational approach. Additionally, ADMET (Absorption, Distribution, Metabolism, Excretion, and Toxicity) and drug-likeness assessments, alongside molecular docking studies, highlighted favorable pharmacokinetic profiles and binding affinities. These findings underscore the potential of NiTPPH₂ and ZnTPPH₂(p-methyl) as promising candidates for antioxidant therapy, exhibiting drug-like properties and favorable pharmacokinetics. This research advances the understanding of these porphyrin derivatives and their application in the development of novel antioxidant therapeutics.</p>","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141944777","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}