Chemistry of Materials最新文献_第9页

Aerobic Photodegradation of Pyrene-Based Metal–Organic Framework NU-1000 to Terephthalic Acid 芘基金属有机骨架NU-1000好氧光降解对苯二甲酸的研究

IF 8.6 2区材料科学

Chemistry of Materials Pub Date : 2025-05-02 DOI: 10.1021/acs.chemmater.5c00520

Wenyi Zeng, Tristan T. Y. Tan, Youven Benseghir, Michael R. Reithofer, Jia Min Chin, Jason Y. C. Lim

{"title":"Aerobic Photodegradation of Pyrene-Based Metal–Organic Framework NU-1000 to Terephthalic Acid","authors":"Wenyi Zeng, Tristan T. Y. Tan, Youven Benseghir, Michael R. Reithofer, Jia Min Chin, Jason Y. C. Lim","doi":"10.1021/acs.chemmater.5c00520","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c00520","url":null,"abstract":"NU-1000, a pyrene-containing benchmark metal–organic framework (MOF), is well-known for its utility and potential across a wide range of applications. Although the extended π-systems in NU-1000 confer favorable properties for diverse photochemical applications, they also increase the susceptibility of the MOF to photodegradation. However, the photostability of NU-1000 has yet to be systematically studied and remains poorly understood. Herein, we report that in the presence of oxygen, water, and light of appropriate energy, extensive oxidation of the pyrene linkers of NU-1000 can occur to yield terephthalic acid as the major decomposition product. Through extensive mechanistic studies, we show that the open framework structure of NU-1000 greatly facilitates linker oxidation, with more than 25-fold greater linker decomposition from the MOF within 3 h of photoirradiation compared to a homogeneous solution of the linker, brought about by rapid generation of pyrene-centred holes. By determining the specific conditions under which the MOF remains stable, our findings offer not just valuable strategies for preserving the integrity of NU-1000 for controlled applications but also reveal its ability to decompose into benign products under ambient light and oxygen, which could provide an eco-friendly route for avoiding environmental accumulation of MOF materials for various applications.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"22 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143898060","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}

引用次数: 0

Average and Local Structure of La1–xSrxFe1–yMnyO3−δ Chemical Looping Oxygen Carrier Materials La1-xSrxFe1-yMnyO3−δ化学环载氧材料的平均结构和局部结构

IF 8.6 2区材料科学

Chemistry of Materials Pub Date : 2025-05-02 DOI: 10.1021/acs.chemmater.5c00388

Daniel M. Telford, Wenting Hu, Ian S. Metcalfe, Martin O. Jones, Paul F. Henry, John S. O. Evans

{"title":"Average and Local Structure of La1–xSrxFe1–yMnyO3−δ Chemical Looping Oxygen Carrier Materials","authors":"Daniel M. Telford, Wenting Hu, Ian S. Metcalfe, Martin O. Jones, Paul F. Henry, John S. O. Evans","doi":"10.1021/acs.chemmater.5c00388","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c00388","url":null,"abstract":"Nonstoichiometric mixed-metal oxides in the La1–xSrxFe1–yMnyO3–δ family are promising oxygen carrier materials for chemical looping processes, including clean hydrogen production from the water-gas shift reaction. The crystal structure variation of these materials during redox reactions is key to the performance of a chemical looping system. Pair distribution function analysis of neutron total scattering data has provided new insight into the local structure of these materials before and after reduction to their working states. Comparison with experimental data for structurally related vacancy-ordered SrFeO3–δ compounds (Sr8Fe8O23, Sr4Fe4O11, and Sr2Fe2O5) allows direct qualitative insight into local B-site coordination environments. A big-box modeling approach incorporating magnetic contributions to the Bragg data on supercells with A- and B-site disorder and mixed B-site coordination gives quantitative information on local structural distortions and coordination polyhedra. For the Mn-doped materials, this modeling shows that Mn has a higher oxidation state than Fe in oxidized samples. Magnetic structures of all ordered compounds have been determined from neutron powder diffraction data, and variable-temperature studies of La0.6Sr0.4FeO3, La0.6Sr0.4FeO2.8, La0.6Sr0.4Fe0.67Mn0.33O3, and La0.6Sr0.4Fe0.67Mn0.33O2.8 have been used to determine magnetic ordering temperatures.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"118 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143901769","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}

引用次数: 0

Temperature-Dependent 207Pb Nuclear Magnetic Resonance Spectroscopy: A Spectroscopic Probe for the Local Electronic Structure of Lead Halide Perovskites 温度相关的207Pb核磁共振波谱：卤化铅钙钛矿局部电子结构的光谱探针

IF 8.6 2区材料科学

Chemistry of Materials Pub Date : 2025-05-02 DOI: 10.1021/acs.chemmater.5c00354

Sebastian Sabisch, Marcel Aebli, Andrii Kanak, Viktoriia Morad, Simon C. Boehme, Michael Wörle, Leon G. Feld, Christophe Copéret, Maksym V. Kovalenko

{"title":"Temperature-Dependent 207Pb Nuclear Magnetic Resonance Spectroscopy: A Spectroscopic Probe for the Local Electronic Structure of Lead Halide Perovskites","authors":"Sebastian Sabisch, Marcel Aebli, Andrii Kanak, Viktoriia Morad, Simon C. Boehme, Michael Wörle, Leon G. Feld, Christophe Copéret, Maksym V. Kovalenko","doi":"10.1021/acs.chemmater.5c00354","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c00354","url":null,"abstract":"Lead halide perovskites (LHPs) have garnered considerable interest, owing to their advantageous optoelectronic properties and ease of synthesis. However, understanding their intricate structure–property relationships remains challenging, for both bulk and nanoscale forms, such as colloidal quantum dots (QDs). In this study, in addition to conventional characterization by X-ray diffraction and optical absorption, we show that variable temperature solid-state nuclear magnetic resonance spectroscopy, complemented by computational modeling, provides unique insight into the local coordination geometry and electronic structure of LHPs in relation to the moderate change in composition or materials morphology. For CsPbBr3 and FAPbBr3 in the form of QDs and bulk, we uncover nuanced disparities between their orthorhombic and on-average cubic structures, respectively, reflected in their temperature-dependent 207Pb chemical shifts and optical band gaps. Specifically, the mode of thermal expansion, be it the increase of the Pb–Br–Pb angles in the orthorhombic structure or the elongation of the Pb–Br bonds in a cubic lattice, gives rise to an increase of the chemical shift by 0.63 or 1.53 ppm/K and optical band gap by 0.18 or 0.66 meV/K, respectively. Identifying the chemical shift as a spectroscopic descriptor, in particular as a lattice ruler, is highly instrumental also for LHP QDs, capturing the difference between CsPbBr3 and FAPbBr3. In a broader perspective, establishing relations across spectroscopic and structural descriptors for diverse LHP compositions and morphologies paves the way for informed design strategies in next-generation optoelectronic devices.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"277 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143898065","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}

引用次数: 0

Average and Local Structure of La1–xSrxFe1–yMnyO3−δ Chemical Looping Oxygen Carrier Materials La1-xSrxFe1-yMnyO3−δ化学环载氧材料的平均结构和局部结构

IF 7.2 2区材料科学

Chemistry of Materials Pub Date : 2025-05-02 DOI: 10.1021/acs.chemmater.5c0038810.1021/acs.chemmater.5c00388

Daniel M. Telford, Wenting Hu, Ian S. Metcalfe, Martin O. Jones, Paul F. Henry and John S. O. Evans*,

{"title":"Average and Local Structure of La1–xSrxFe1–yMnyO3−δ Chemical Looping Oxygen Carrier Materials","authors":"Daniel M. Telford, Wenting Hu, Ian S. Metcalfe, Martin O. Jones, Paul F. Henry and John S. O. Evans*, ","doi":"10.1021/acs.chemmater.5c0038810.1021/acs.chemmater.5c00388","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c00388https://doi.org/10.1021/acs.chemmater.5c00388","url":null,"abstract":"Nonstoichiometric mixed-metal oxides in the La1–xSrxFe1–yMnyO3–δ family are promising oxygen carrier materials for chemical looping processes, including clean hydrogen production from the water-gas shift reaction. The crystal structure variation of these materials during redox reactions is key to the performance of a chemical looping system. Pair distribution function analysis of neutron total scattering data has provided new insight into the local structure of these materials before and after reduction to their working states. Comparison with experimental data for structurally related vacancy-ordered SrFeO3–δ compounds (Sr8Fe8O23, Sr4Fe4O11, and Sr2Fe2O5) allows direct qualitative insight into local B-site coordination environments. A big-box modeling approach incorporating magnetic contributions to the Bragg data on supercells with A- and B-site disorder and mixed B-site coordination gives quantitative information on local structural distortions and coordination polyhedra. For the Mn-doped materials, this modeling shows that Mn has a higher oxidation state than Fe in oxidized samples. Magnetic structures of all ordered compounds have been determined from neutron powder diffraction data, and variable-temperature studies of La0.6Sr0.4FeO3, La0.6Sr0.4FeO2.8, La0.6Sr0.4Fe0.67Mn0.33O3, and La0.6Sr0.4Fe0.67Mn0.33O2.8 have been used to determine magnetic ordering temperatures.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"37 9","pages":"3471–3482 3471–3482"},"PeriodicalIF":7.2,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acs.chemmater.5c00388","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143934381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing Immune Responses and Tumor Inhibition with Iron Oxide Nanoparticle Adjuvants 氧化铁纳米颗粒佐剂增强免疫反应和肿瘤抑制作用

IF 8.6 2区材料科学

Chemistry of Materials Pub Date : 2025-05-01 DOI: 10.1021/acs.chemmater.5c00636

Yanhua Chen, Yiran He, Min Jiang, Ye Shen, Xuewen Zheng, Ying Shi, Jingyi Qin, Yayun Gu, Xin Li, Zhaoxu Luo, Shengquan Liu, Xiaochuan Ma, Jiong Li, Kefeng Pu

引用次数: 0

Enhancing Immune Responses and Tumor Inhibition with Iron Oxide Nanoparticle Adjuvants 氧化铁纳米颗粒佐剂增强免疫反应和肿瘤抑制作用

IF 7.2 2区材料科学

Chemistry of Materials Pub Date : 2025-05-01 DOI: 10.1021/acs.chemmater.5c0063610.1021/acs.chemmater.5c00636

Yanhua Chen, Yiran He, Min Jiang, Ye Shen, Xuewen Zheng, Ying Shi, Jingyi Qin, Yayun Gu, Xin Li, Zhaoxu Luo, Shengquan Liu, Xiaochuan Ma*, Jiong Li* and Kefeng Pu*,

引用次数: 0

Low-Temperature Dynamics at Nano- and Macroscales: Organic Crystal That Exhibits Low-Temperature Molecular Motion and the Thermosalient Effect 低温动力学在纳米和宏观尺度：有机晶体表现出低温分子运动和热效应

IF 7.2 2区材料科学

Chemistry of Materials Pub Date : 2025-05-01 DOI: 10.1021/acs.chemmater.5c0017110.1021/acs.chemmater.5c00171

José L. Belmonte-Vázquez, Durga Prasad Karothu, Carl H. Fleischer, Dazaet Galicia-Badillo, Mauricio Maldonado-Domínguez, Robert W. Schurko, Liang Li, Panče Naumov* and Braulio Rodríguez-Molina*,

{"title":"Low-Temperature Dynamics at Nano- and Macroscales: Organic Crystal That Exhibits Low-Temperature Molecular Motion and the Thermosalient Effect","authors":"José L. Belmonte-Vázquez, Durga Prasad Karothu, Carl H. Fleischer, Dazaet Galicia-Badillo, Mauricio Maldonado-Domínguez, Robert W. Schurko, Liang Li, Panče Naumov* and Braulio Rodríguez-Molina*, ","doi":"10.1021/acs.chemmater.5c0017110.1021/acs.chemmater.5c00171","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c00171https://doi.org/10.1021/acs.chemmater.5c00171","url":null,"abstract":"The thermosalient effect is a rarely observed, potentially very useful and at the present, unpredictable mechanical response during a phase transition that is thought to hold the potential for rapid and clean energy conversion devoid of gaseous products. Here, we report the serendipitous discovery of a rare instance of a thermosalient organic solid that exhibits the effect below room temperature. The crystals of this carbazole-based material are dynamic at both molecular and macroscopic scales. Using variable temperature synchrotron X-ray diffraction and variable-temperature solid-state nuclear magnetic resonance (ssNMR), we thoroughly examined the hysteretic structural transition in this material, emphasizing its macroscopic reconfigurability. We discovered unexpected large-amplitude molecular oscillations in the low-temperature phase, which challenge conventional assumptions about salient materials. Notably, we combined 2H ssNMR with computational modeling to reveal this dual-scale dynamism, setting the groundwork for advancements in energy-efficient actuators, sensors, and intelligent materials. This work might open new avenues for developing crystalline materials that can be implemented in innovative devices operating seamlessly across various scales.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"37 9","pages":"3373–3383 3373–3383"},"PeriodicalIF":7.2,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acs.chemmater.5c00171","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143934478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low-Temperature Dynamics at Nano- and Macroscales: Organic Crystal That Exhibits Low-Temperature Molecular Motion and the Thermosalient Effect 低温动力学在纳米和宏观尺度：有机晶体表现出低温分子运动和热效应

IF 8.6 2区材料科学

Chemistry of Materials Pub Date : 2025-05-01 DOI: 10.1021/acs.chemmater.5c00171

José L. Belmonte-Vázquez, Durga Prasad Karothu, Carl H. Fleischer, Dazaet Galicia-Badillo, Mauricio Maldonado-Domínguez, Robert W. Schurko, Liang Li, Panče Naumov, Braulio Rodríguez-Molina

{"title":"Low-Temperature Dynamics at Nano- and Macroscales: Organic Crystal That Exhibits Low-Temperature Molecular Motion and the Thermosalient Effect","authors":"José L. Belmonte-Vázquez, Durga Prasad Karothu, Carl H. Fleischer, Dazaet Galicia-Badillo, Mauricio Maldonado-Domínguez, Robert W. Schurko, Liang Li, Panče Naumov, Braulio Rodríguez-Molina","doi":"10.1021/acs.chemmater.5c00171","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c00171","url":null,"abstract":"The thermosalient effect is a rarely observed, potentially very useful and at the present, unpredictable mechanical response during a phase transition that is thought to hold the potential for rapid and clean energy conversion devoid of gaseous products. Here, we report the serendipitous discovery of a rare instance of a thermosalient organic solid that exhibits the effect below room temperature. The crystals of this carbazole-based material are dynamic at both molecular and macroscopic scales. Using variable temperature synchrotron X-ray diffraction and variable-temperature solid-state nuclear magnetic resonance (ssNMR), we thoroughly examined the hysteretic structural transition in this material, emphasizing its macroscopic reconfigurability. We discovered unexpected large-amplitude molecular oscillations in the low-temperature phase, which challenge conventional assumptions about salient materials. Notably, we combined 2H ssNMR with computational modeling to reveal this dual-scale dynamism, setting the groundwork for advancements in energy-efficient actuators, sensors, and intelligent materials. This work might open new avenues for developing crystalline materials that can be implemented in innovative devices operating seamlessly across various scales.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"49 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143898061","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}

引用次数: 0

One-Step Preparation of Highly Conductive Sandwich-Structured Hydrogels for Multifunctional Sensors 多功能传感器用高导电性三明治结构水凝胶的一步制备

IF 8.6 2区材料科学

Chemistry of Materials Pub Date : 2025-04-30 DOI: 10.1021/acs.chemmater.4c02850

Xue Jing, Shan Xia, Yujiao Bi, Guanghui Gao

{"title":"One-Step Preparation of Highly Conductive Sandwich-Structured Hydrogels for Multifunctional Sensors","authors":"Xue Jing, Shan Xia, Yujiao Bi, Guanghui Gao","doi":"10.1021/acs.chemmater.4c02850","DOIUrl":"https://doi.org/10.1021/acs.chemmater.4c02850","url":null,"abstract":"Based on the unique structure and performance advantages, sandwich-structured hydrogels have broad application prospects in the field of electrochemical devices. However, the sandwich-structured hydrogels still face the preparation problems of a layer-by-layer construction process and complicated operation method. In this paper, a one-step preparation of sandwich-structured hydrogels with adjustable inner layer thickness was realized, wherein the inner layer of the hydrogel was enriched by PEDOT:PSS, and the outer layer of the hydrogel was polymerized by acrylamide (AM) and zwitterionic monomer (SBMA). By adjusting the content of AM and SBMA, the enrichment of PEDOT:PSS could be affected, achieving the regulation of the inner layer thickness on conductivity. The introduction of glycerol (GL) into the outer layer of the sandwich-structured hydrogel imparted excellent environmental stability to the hydrogel. Therefore, a sandwich-structured hydrogel with high conductivity (511.29 ms/cm), significant deformability (1720%), and excellent environmental stability was obtained. The sandwich-structured hydrogel could not only be used as wearable sensors to detect human movement over a large temperature range of −20 to 60 °C but could also be woven into flexible fabric sensors for position sensing and Morse code transmission, showing promising applications in the field of multifunctional sensing.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"10 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143889953","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}

引用次数: 0

Construction of Nitric Oxide-Releasing Poly(trimethylene carbonate)-Based Polymersomes Equipped with Cell-Penetrating Guanidine 含细胞穿透胍基的释放一氧化氮的聚碳酸三甲酯基聚合体的构建

IF 8.6 2区材料科学

Chemistry of Materials Pub Date : 2025-04-30 DOI: 10.1021/acs.chemmater.5c00338

Baohua Zhang, Shuyang Shen, Suzhen Wang, Zhezhe Li, Yuzhe Ma, Siyu Song, Hailong Che

{"title":"Construction of Nitric Oxide-Releasing Poly(trimethylene carbonate)-Based Polymersomes Equipped with Cell-Penetrating Guanidine","authors":"Baohua Zhang, Shuyang Shen, Suzhen Wang, Zhezhe Li, Yuzhe Ma, Siyu Song, Hailong Che","doi":"10.1021/acs.chemmater.5c00338","DOIUrl":"https://doi.org/10.1021/acs.chemmater.5c00338","url":null,"abstract":"Nitric oxide (NO), one of the important gaseous signaling molecules, has shown great potential in treating many diseases. Thus, the construction of NO-releasing polymeric vehicles has garnered much attention. Despite the great effort made in the field, facilitating the internalization of polymer-based NO donors within cells remains a challenge. In this work, we reported a rational design of poly(trimethylenecarbonate) (PTMC)-based NO-releasing polymersomes equipped with cell-penetrating guanidine. The guanidine group conjugated with the polymersome significantly enhances the cellular uptake efficiency induced by the unique interactions between guanidine and the cancer cell surface. The in vitro studies demonstrated that light irradiation could trigger NO release from polymersomes, and the guanidine-functionalized polymersomes have superior cytotoxicity against cancer cells than unfunctionalized polymersomes. We expect that integrating cell-penetrating properties into NO-releasing polymersome systems provides a promising strategy for constructing advanced gas-releasing polymeric vehicles.","PeriodicalId":33,"journal":{"name":"Chemistry of Materials","volume":"25 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143893321","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}

引用次数: 0