The Royal Society of Chemistry最新文献

{"title":"Benzothiazole–thiazole hybrids as broad-spectrum antimicrobial agents: synthesis, SAR analysis, and molecular docking against bacterial and fungal targets","authors":"Seema K. Bhagwat, Santosh S. Chobe, Rajasekhar Reddy Alavala, Amisha Vora, Rahul A. More, Vivek D. Bobade, Amar A. Patil, Tushar Janardan Pawar, Fabiola Hernández-Rosas and Sachin V. Patil","doi":"10.1039/D5RA04254B","DOIUrl":"https://doi.org/10.1039/D5RA04254B","url":null,"abstract":"<p >The persistent threat of pathogenic microorganisms demands the development of innovative scaffolds with dual antibacterial and antifungal activities. Herein, we report the synthesis and characterization of a novel series of benzothiazole–thiazole hybrids (<strong>4a–4f</strong>) <em>via</em> a three-step route, confirmed by NMR and MS analyses. The compounds were screened against Gram-positive, Gram-negative, mycobacterial, and fungal strains using disk diffusion and REMA assays. Compounds <strong>4b</strong>, <strong>4c</strong>, <strong>4d</strong>, and <strong>4f</strong> showed strong inhibition zones and low MIC values (3.90–15.63 μg mL<small>⁻¹</small>), with <strong>4b</strong> emerging as the most potent. Structure–activity relationship (SAR) analysis revealed that electron-withdrawing groups such as nitro and halogens enhanced antimicrobial activity. Molecular docking studies against <em>Staphylococcus aureus</em> and <em>Mycobacterium tuberculosis</em> DNA gyrase and fungal cytochrome P450 14α-demethylase supported the <em>in vitro</em> findings, with key interactions including hydrogen bonding, π–π stacking, and hydrophobic contacts. These results underscore the potential of benzothiazole–thiazole hybrids as multi-target antimicrobial agents and promising candidates for further development.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 38","pages":" 31752-31762"},"PeriodicalIF":4.6,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra04254b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multifunctional MEMS, NEMS, micro/nano-structures enabled by piezoelectric and ferroelectric effects.","authors":"Mengyao Xiao, Aolei Xu, Zhouli Sui, Wenjie Zhang, Huajun Liu, Chengkuo Lee","doi":"10.1039/d5nh00386e","DOIUrl":"https://doi.org/10.1039/d5nh00386e","url":null,"abstract":"<p><p>MEMS and NEMS increasingly integrate multiple functions within compact platforms, enabled by piezoelectric and ferroelectric materials such as PZT, BaTiO₃, AlN, ScAlN, PVDF, and Hf_0.5Zr_0.5O₂. These materials support devices including mechanical sensors, RF resonators for gas detection, energy harvesters, non-volatile memories such as FeRAM and FeFETs, and neuromorphic computing arrays, as well as microspeakers and microphones for compact audio interfaces. They also play a key role in reconfigurable photonic components through acousto-optic and electro-optic modulation. This review examines materials, device designs, and integration strategies shaping next-generation intelligent microsystems across domains such as Artificial Intelligence of Things (AIoT), wearables, and robotics.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" ","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144991061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative study of the impact of heat treatment on the microstructure, morphology, optical and dielectric properties of nanostructured Co–Mn ferrite","authors":"J. Othmani, Ah. Dhahri, S. Hcini, M. L. Bouazizi, K. Khirouni, E. Dhahri and Benilde F. O. Costa","doi":"10.1039/D5RA04995D","DOIUrl":"https://doi.org/10.1039/D5RA04995D","url":null,"abstract":"<p >Nanoscale materials are attracting a great deal of attention due to their exceptional properties, making them indispensable for many advanced applications. Among these materials, spinel ferrites stand out for their potential applications in electronic, optoelectronic, energy storage and other devices. This is why the development of a synthesis process combined with rigorous optimization of annealing conditions is provided to be an essential approach to control nanoparticle formation and fine-tuning their structural, morphological and functional characteristics. A new approach is proposed to tailor the multifunctional properties of cobalt–manganese ferrites by synthesizing a non-stoichiometric composition. The compound Co<small>_0.33</small>Mn<small>_0.33</small>Fe<small>_2.33</small>O<small>₄</small>, containing an excess of Fe in the B sites, was obtained by the coprecipitation method combined with controlled annealing treatments. This strategy allows for the synergistic adjustment of structural, morphological, optical, and dielectric properties, and establishes a direct link between microstructural evolution and improved device performance. X-ray diffraction analysis confirmed the formation of a single-phase cubic spinel phase. The average crystallite size increased from 28 nm to 31 nm with higher annealing temperatures, indicating improved crystallinity. Morphological analysis by scanning electron microscopy revealed a significant grain growth and a reduction in irregular grain boundaries, which can minimize charge carrier scattering (beneficial for high-frequency capacitor and microwave device applications). UV-visible-near infrared spectroscopy showed a decrease in the optical band gap from 3.13 eV to 2.45 eV with increasing temperature, indicating a change in electronic structure. This variation suggests that the material can be integrated into devices such as transistors, modulators or optical switches. Finally, dielectric measurements revealed a high dielectric constant with low losses, underlining the potential of this material for applications in high-performance components.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 38","pages":" 31853-31864"},"PeriodicalIF":4.6,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra04995d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photoelectrochemical water splitting using TiO2/α-Fe2O3 heterojunction films produced by chemical vapour deposition","authors":"Abdullah M. Alotaibi, Hussam M. Alzahrani, Saud M. Alosaimi, Abdullah M. Alqahtani, Mohammed A. Alhajji and Mohammed J. Alotaibi","doi":"10.1039/D5RA05064B","DOIUrl":"https://doi.org/10.1039/D5RA05064B","url":null,"abstract":"<p >This study reports the enhanced photoelectrochemical (PEC) performance of TiO<small>₂</small>/α-Fe<small>₂</small>O<small>₃</small> heterostructure films fabricated <em>via</em> a sequential aerosol-assisted chemical vapour deposition (AACVD) of hematite at 450 °C, followed by atmospheric pressure CVD (APCVD) of anatase TiO<small>₂</small> with controlled thickness. Structural analyses (XRD, Raman, XPS) confirmed phase purity and oxidation states, while UV-vis spectroscopy revealed a narrowed bandgap and extended visible light absorption for the heterostructures compared to pristine films. The optimized TiO<small>₂</small>/α-Fe<small>₂</small>O<small>₃</small> (8 min) photoanode achieved a photocurrent density of 1.75 mA cm<small>⁻²</small> at 1.23 V <em>vs.</em> RHE in 1.0 M NaOH under AM 1.5G illumination, representing a ∼150% improvement over pure α-Fe<small>₂</small>O<small>₃</small>. Incident-photon-to-current efficiency (IPCE) reached 7.47% at 420 nm, with enhanced performance sustained across the visible range. Transient absorption spectroscopy (TAS) revealed prolonged charge carrier lifetimes, indicating suppressed electron–hole recombination. The heterojunction design also improved stability, maintaining performance for over 16 h compared to 6.5 h for hematite alone. These synergistic effects including narrowed bandgap, efficient charge separation, and enhanced light harvesting highlight the novelty of combining AACVD and APCVD in fabricating TiO<small>₂</small>/α-Fe<small>₂</small>O<small>₃</small> heterostructures as durable, high-performance photoanodes for scalable solar hydrogen generation.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 38","pages":" 31931-31945"},"PeriodicalIF":4.6,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra05064b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Metal-free synthesis of tricyclic benzofuro[2,3-c]pyridin-3-ol derivatives, characterization, and photoluminescence properties","authors":"Surbhi Mahender Saini and Sandeep Chandrashekharappa","doi":"10.1039/D5RA05420F","DOIUrl":"https://doi.org/10.1039/D5RA05420F","url":null,"abstract":"<p >This paper presents a metal-free synthetic protocol for assembling novel benzofuro[2,3-<em>c</em>]pyridin-3-ols (BFPYOLs) using 2,3-disubstituted benzofuran derivatives with good yield. The method's advantages include the absence of an expensive metal catalyst, organic ligands, and easily accessible starting materials. The photophysical properties of the synthesized BFPYOLs are investigated, revealing that the largest <em>λ</em><small>_abs</small> is displayed by compound <strong>7g</strong> at 389 nm, while the largest <em>λ</em><small>_em</small> is observed in compound <strong>7i</strong> at 494 nm in DMSO solvent. This highlights the significant impact of substituents on the compounds. Additionally, the solvatochromic and thermal effects of compound <strong>6j</strong> are analysed. Among the tested BFPYOLs, the highest photoluminescent quantum yield (PLQY) was exhibited by <strong>7k</strong>, achieving 91% in DMSO solvent. This study demonstrates that our synthetic methodology and the synthesised BFPYOLs can provide a powerful gateway to the generation of novel economic fluorescent probes.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 38","pages":" 31840-31852"},"PeriodicalIF":4.6,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra05420f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Arriving at ultralow wear using cellulose/two-material composites.","authors":"Xuan Yin, Dingyao Zhang, Bing Zhang","doi":"10.1039/d5cp00527b","DOIUrl":"https://doi.org/10.1039/d5cp00527b","url":null,"abstract":"<p><p>The development of environmentally friendly solid lubricants with exceptional wear resistance is imperative to address the escalating environmental concerns and performance limitations of conventional lubricants in demanding tribological applications. This study systematically investigated the wear resistance of hydroxypropyl methylcellulose (HPMC)/tungsten disulfide (WS₂)/graphene composites under normal applied loads (2 and 4 N) and varying solid lubricant contents (stoichiometric ratios of 0.2 referred to as CWG-0.2 and 10 referred to as CWG-10). Quantitative tribological tests revealed that the wear rate of HPMC composites exhibited distinct load dependence at fixed lubricant concentrations. Notably, CWG-0.2 and CWG-10 composites achieved an ultra-low wear rate below 10^-10 mm³, representing an approximately 95% reduction compared to pristine HPMC (10^-8 mm³). Surface characterization demonstrated that localized carbon phase clusters and interconnected carbon skeleton chains governed the ultra-low wear transition. Prolonged sliding (>10 000 cycles) induced the formation of a 10-50 nm-thick transfer film comprising WS₂ nanoflakes and a hybrid amorphous phase (C-O-W-S), as confirmed by X-ray photoelectron spectroscopy and high-resolution transmission electron microscopy. The exceptional performance, quantified through rigorous parametric analysis, positions HPMC composites as sustainable solid lubricants for precision machinery, aerospace bearings, and biodegradable micro-electromechanical systems requiring eco-friendly superlubricity.</p>","PeriodicalId":99,"journal":{"name":"Physical Chemistry Chemical Physics","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144991039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"AC corona aging behavior and performance comparison of HTV silicone rubber, cycloaliphatic epoxy resin, and glass fiber-reinforced epoxy used in composite insulators","authors":"Yuelin Liu, Wendong Li, Shiyin Zeng, Xinyi Yan, Haoyan Liu, Yuanyang Liu and Guanjun Zhang","doi":"10.1039/D5RA05182G","DOIUrl":"https://doi.org/10.1039/D5RA05182G","url":null,"abstract":"<p >Cycloaliphatic epoxy resin (CEP) is a promising candidate for rigid housings in high-voltage composite insulators due to its superior hardness, water resistance, and interfacial adhesion compared with conventional high-temperature vulcanized silicone rubber (HTV-SR). However, the long-term insulation degradation mechanisms of CEP under corona discharge are still not fully understood. In this study, CEP, HTV-SR, and glass fiber-reinforced epoxy (GFRP) were subjected to AC corona aging using a multi-needle plate electrode. Surface morphology, chemical structure, and electrical properties were comprehensively evaluated. The results show that all three materials experienced progressive surface cracking and increased roughness during aging, leading to notable reductions in hydrophobicity, resistivity, and DC flashover voltage. Surface degradation was found to be more significant than bulk degradation. CEP maintained a denser microstructure containing carbonized residues and inorganic fillers, and exhibited less severe cracking compared with HTV-SR. FTIR and XPS analyses revealed that CEP underwent epoxy ring opening, accumulation of polar groups, and surface carbonization, accompanied by a marked decrease in the C/O ratio and deterioration of dielectric properties. In comparison, HTV-SR developed a protective silica-like layer through oxidative crosslinking, which helped preserve its structural integrity and insulation performance. GFRP suffered the most severe deterioration, including resin erosion and glass fiber exposure. Principal component analysis (PCA) of multiple performance indicators confirmed that CEP demonstrated aging resistance comparable to HTV-SR and superior to GFRP. These findings provide a theoretical foundation for the engineering application of CEP in high-voltage composite insulators.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 38","pages":" 31884-31898"},"PeriodicalIF":4.6,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra05182g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"π-Bridge engineering strategy: tailoring S-xanthene dyes with strong absorption for high-efficiency photothermal therapy.","authors":"Yu Zhao, Rui-Rui Zhang, Nan Wang, Xiao-Li Tian, Li-Na Zhang, Wen-Li Xia, Zhou-Yu Wang, Xiao-Qi Yu, Kun Li","doi":"10.1039/d5mh01254f","DOIUrl":"https://doi.org/10.1039/d5mh01254f","url":null,"abstract":"<p><p>NIR-II probes show great potential for fluorescence imaging (FLI) and therapeutics, where the molar extinction coefficient (MEC), a pivotal optical parameter, governs their imaging quality and therapeutic efficacy. Nevertheless, engineering NIR-II probes with ultrahigh MEC remains a formidable challenge, limiting their biomedical applications. In this work, we designed a superior NIR-II D-π-A-π-D probe, SCU-SX-T, which features an S-xanthene core as the conjugate acceptor, a diphenylamine (DPA) rotor, and π-bridge that induces bathochromic shifts in absorption/emission spectra while enhancing molecular rigidity and planarity. This rational molecular design enables the probe to achieve exceptionally ultrahigh MEC of 2.0 × 10⁵ M^-1 cm^-1, outstanding photothermal conversion efficiency (PCE) of 91.5%, and fluorescence quantum yield of 0.04%. Notably, the SCU-SX-T NPs facilitated high-resolution vascular imaging of the abdominal region and precise surgery in living mice, demonstrating their robust NIR-II fluorescence capability. Furthermore, NIR-II FLI/photothermal imaging (PTI)-guided tumor visualization and photothermal therapy (PTT) was successfully achieved. The integration of α-PD-L1 checkpoint blockade therapy led to significant inhibition of proximal tumor growth, highlighting the potential of this synergistic therapeutic strategy. Overall, this work provides a comprehensive NIR-II probe with excellent performance and ideas for the future design of NIR-II probes with high MEC.</p>","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":10.7,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144991066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthetic scaffolds functionalized with mesenchymal stem/stromal cells-derived extracellular matrix for bone tissue engineering: a review","authors":"Margarida F. Domingues, Marta S. Carvalho, Paola Sanjuan-Alberte and João C. Silva","doi":"10.1039/D5RA02106E","DOIUrl":"https://doi.org/10.1039/D5RA02106E","url":null,"abstract":"<p >Bone-related injuries represent a major global challenge, particularly for the aging population. While bone has self-healing capabilities, large defects and non-union fractures often fail to completely regenerate, leading to long-term disability and the need for surgical intervention. Autologous bone grafts remain the gold standard for such procedures, but challenges such as limited donor availability and donor site comorbidity persist. Bone tissue engineering (BTE) presents an alternative approach for bone regeneration, using biomaterials, cells and growth factors that mimic the natural composition and structure of bone. Cell-derived decellularized extracellular matrix (dECM), particularly from mesenchymal stem/stromal cell (MSCs), is among the most promising biomaterials for BTE, as it closely mimics the composition of native bone ECM and provides immunomodulatory and trophic molecules that support bone regeneration. However, dECM's mechanical properties are often insufficient, requiring its combination with synthetic polymers to improve scaffold strength and structural integrity, critical to support hard tissues such as bone. This review explores the potential of MSC-dECM composite scaffolds developed for BTE, including 3D printed constructs, electrospun fibrous matrices, hydrogels and metallic scaffolds. It describes how the incorporation of MSC-dECM enhances the osteoconductive and osteoinductive properties of these scaffolds, leading to increased expression of osteogenic markers and calcium deposition <em>in vitro</em>, as well as enhanced bone formation <em>in vivo</em>. Finally, the review addresses the current challenges and future directions in advancing the application of MSC-dECM-enriched scaffolds towards clinically effective bone repair strategies, including the need to scale up MSC-dECM production, further elucidate its regenerative mechanisms, and integrate it into precise patient-tailored approaches.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 38","pages":" 31812-31829"},"PeriodicalIF":4.6,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra02106e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tandem synthesis of dihydronaphthalen-1(2H)-one derivatives via aldol condensation-Diels–Alder-aromatization sequence of reactions","authors":"M. Saeed Abaee, Yazdanbakhsh L. Nosood, Elaheh Akbarzadeh, Mohammad M. Mojtahedi and Ahmed Al-Harrasi","doi":"10.1039/D5RA04673D","DOIUrl":"https://doi.org/10.1039/D5RA04673D","url":null,"abstract":"<p >A new series of dihydronaphthalen-1(2<em>H</em>)-one derivatives were synthesized in high yields starting from commercially available 3,5,5-trimethylcyclohex-2-en-1-one <strong>1a</strong>, aromatic aldehydes <strong>2</strong>, and diethyl acetylenedicarboxylate. Reaction of <strong>1a</strong> with the aldehydes produced the respective dienones <strong>3</strong>, which could cycloadd to dialkyl acetylenedicarboxylate, either stepwise or <em>in situ</em>, under aqueous/organocatalyzed (DMAP) conditions. The respective adducts <strong>4</strong>, were produced efficiently <em>via</em> a Diels–Alder-double bond isomerization-oxidative aromatization sequence and were characterized based on the analysis of their <small>¹</small>H and <small>¹³</small>C NMR spectra.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 38","pages":" 31806-31811"},"PeriodicalIF":4.6,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra04673d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144934497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}