Samruddhi Gaikwad, Jiahui Liu, Nyx Mashkow, Marek W Urban
{"title":"Self-Healable Poly(ionic liquid) Copolymers Driven by Polar and Dipolar Forces.","authors":"Samruddhi Gaikwad, Jiahui Liu, Nyx Mashkow, Marek W Urban","doi":"10.1002/anie.202510066","DOIUrl":"10.1002/anie.202510066","url":null,"abstract":"<p><p>Commodity aliphatic and aromatic acrylic-based copolymers self-heal due to ubiquitous key-and-lock, ring-and-lock, and fluorophilic-σ-lock van der Waals (vdW) interactions. However, the role of these interactions in the presence of covalently copolymerized ionic liquid (IL) is not known. This study is driven by the hypothesis that covalently incorporated cation-anion pairs to form poly(ionic liquid) copolymers (PILCs) can perturb inter- or intra-chain vdW interactions reflected in mechanical and electrical responses. To test this hypothesis, we synthesized a series of PILCs comprising of pentafluorostyrene (PFS) and imidazolium-based IL monomers with variable-length aliphatic tails (methyl and butyl). Using a combination of 2D <sup>1</sup>H-<sup>1</sup>H and <sup>19</sup>F -<sup>19</sup>F NOESY NMR and FTIR measurements supplemented by molecular dynamic (MD) simulations, these studies demonstrate that preferentially alternating/random PILCs topologies facilitate self-healing. The introduction of cation-anion moieties modifies the fluorophilic-σ-lock interactions and, along with longer aliphatic tails ─(CH<sub>2</sub>)<sub>3</sub>CH<sub>3</sub> covalently attached to the imidazolium cation, enhances cation-anion mobility, thus faster recovery from mechanical damage occurs. These findings underline how precise control over dipolar and ionic interactions through copolymer composition enables self-healing in PILCs. These insights may open pathways for designing sustainable, mechanically resilient materials for applications in energy storage and energy harvesting.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202510066"},"PeriodicalIF":0.0,"publicationDate":"2025-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144532709","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}
Shangjuan Yang, Zhoujie Lao, Zhuo Han, Hai Su, Guanyou Xiao, Guangmin Zhou, Danfeng Zhang, Yan-Bing He
{"title":"Si─O Molecular Engineering Enhances Cathode-Anode Interface Stability for High-Loading and High-Voltage Layered Cathode-Lithium Metal Batteries.","authors":"Shangjuan Yang, Zhoujie Lao, Zhuo Han, Hai Su, Guanyou Xiao, Guangmin Zhou, Danfeng Zhang, Yan-Bing He","doi":"10.1002/anie.202508008","DOIUrl":"10.1002/anie.202508008","url":null,"abstract":"<p><p>Nickel-rich layered cathodes and lithium metal anode are promising for the next generation high-energy-density batteries. However, the unstable electrode-electrolyte interface induces structural degradation and battery failure under high-voltage and high-loading conditions. Herein, we report a fluorosilane-coupled electrolyte stabilizer with 1H, 1H, 2H, 2H-perfluorooctyltrimethoxysilane (PFOTMS), which presents higher adsorption energy with LiNi<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>O<sub>2</sub> cathode than solvents through the conjugation of Si─O bonds and therefore is oxidized on its surface to derive an interfacial layer rich in F and Si─O species. This architecture effectively stabilizes the cathode structure, suppresses transition metal migration, and promotes Li<sup>+</sup> conduction and uniform deposition, which also suppresses the side reactions of electrolyte with both cathode and anode. This unique interfacial stabilization mechanism enables the Li||NCM811 battery to achieve a capacity retention rate of 80.8% after 600 cycles at 4.7 V. The Li||LiCoO<sub>2</sub> cell with a high mass loading of 20 mg cm<sup>-2</sup> achieves a remarkably high-capacity retention of 92.79% after 500 cycles at 4.4 V. This work proposes an interfacial stabilization that overcomes high-voltage limitations in practical nickel-rich cathode/lithium metal batteries.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202508008"},"PeriodicalIF":0.0,"publicationDate":"2025-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144532710","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}
Liye Ma, Lvqi Jiang, Guangsheng Tian, Zijian Lin, Zhongquan Lin, Yu Xu, Zihao Guo, Leibing Wang, Jie Liu, Wen-Bin Yi
{"title":"Synthesis of a Library of N-monofluoromethyl Compounds from N-monofluoromethyl Carbamoyl/Thiocarbamoyl Fluorides.","authors":"Liye Ma, Lvqi Jiang, Guangsheng Tian, Zijian Lin, Zhongquan Lin, Yu Xu, Zihao Guo, Leibing Wang, Jie Liu, Wen-Bin Yi","doi":"10.1002/anie.202508594","DOIUrl":"https://doi.org/10.1002/anie.202508594","url":null,"abstract":"<p><p>The distinctive chemical properties of fluorine atoms have enabled fluorine-containing compounds to make significant strides in the pharmaceutical and materials fields. However, due to the very limited synthetic methods, the enormous potential of N-monofluoromethyl compounds has not yet been unlocked. In this study, we present an operationally simple and practical protocol for various largely underexplored N-monofluoromethyl compounds, utilizing two powerful and isolable building blocks: N-CH2F thio carbamoyl fluorides and N-CH2F carbamoyl fluorides. Additionally, the reactivity of fluorine atoms located at different positions of the two building blocks toward nucleophilic substitution was investigated both experimentally and theoretically.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202508594"},"PeriodicalIF":0.0,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144510286","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}
Jian Zhang, Qing Lang, Evgenia Dmitrieva, Fang Chen, Jiayuan Yu, Yixiao Yang, Liang Chen, Gang Wang
{"title":"A 3.8 V Quaternary Ammonium-Based Dual-Ion Battery Enabled by a Conjugated Ladder Polymer.","authors":"Jian Zhang, Qing Lang, Evgenia Dmitrieva, Fang Chen, Jiayuan Yu, Yixiao Yang, Liang Chen, Gang Wang","doi":"10.1002/anie.202511864","DOIUrl":"10.1002/anie.202511864","url":null,"abstract":"<p><p>Rechargeable batteries based on nonmetal charge carriers like NH<sub>4</sub> <sup>+</sup> recently have attracted intensive attention due to high safety, environmental friendliness, low cost, and fast kinetics. However, NH<sub>4</sub> <sup>+</sup> electrolytes suffer from a narrow electrochemical potential window, making it challenging to construct high-voltage and energy-dense devices. Here we report a quaternary ammonium (NR<sub>4</sub> <sup>+</sup>)-based dual-ion battery (DIB) working at a high voltage of 3.8 V, which was enabled by a conjugated ladder polymer poly(benzobisimidazobenzophenanthroline) (BBL) anode for NR<sub>4</sub> <sup>+</sup> storage and a graphite cathode for anion uptake. The BBL functions as an efficient NR<sub>4</sub> <sup>+</sup> host by carbonyl/enol transformation, delivering a high capacity of 120 mAh g<sup>-1</sup>, low average potential, high stability, and excellent rate performance. In the redox process, the electronic and ionic conductivities of BBL change periodically, accompanied by the formation of radical anion (<sup>●-</sup>) and diradical dianion (<sup>2●-</sup>). In combination with an anion-intercalation graphite cathode, the assembled graphite//BBL DIB exhibits a maximum energy/power density up to 232 Wh kg<sup>-1</sup> and 6865 W kg<sup>-1</sup> based on mass of graphite, superior rate performance, and high cycling stability without capacity attenuation. Our work demonstrates the feasibility of NR<sub>4</sub> <sup>+</sup> as cation carrier and its efficient host, which will inspire novel designs for high-performance nonmetallic energy storage devices.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202511864"},"PeriodicalIF":0.0,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144510257","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":"From Corrosion to Creation: Interfacial De-Electronation Drives Hydrogenation-Energy Symbiosis.","authors":"Yueqing Wang, Xueying Cao, Chengdong Yang, Wenwen Cai, Xinxin Shu, Yuhan Li, Jing Zhu, Jizhen Ma, Jintao Zhang","doi":"10.1002/anie.202507722","DOIUrl":"10.1002/anie.202507722","url":null,"abstract":"<p><p>Metal corrosion, conventionally perceived as a destructive phenomenon driven by de-electronation, imposes significant economic burdens and safety hazards. To repurpose corrosion into a valuable resource, we demonstrate a macroscopic corrosion battery concept that harnesses galvanic corrosion to drive the synthesis of metal-organic frameworks (MOFs), high-value chemicals, and energy generation, challenging conventional corrosion mitigation paradigms. By spatially segregating the corrosion process, the system couples anodic metal de-electronation with MOF deposition while integrating diverse cathodic reactions, including the hydrogen evolution reaction, oxygen reduction, electrocatalytic hydrogenation, and hydrogen peroxide reduction with remarkable accelerated kinetics, thereby achieving universal MOFs and chemical synthesis with high electron and atom utilization efficiencies. The prototype system demonstrates concurrent production of p-aminophenol (14.3 mg cm<sup>-2</sup> h<sup>-1</sup>) and zinc oxalate (86.9 mg cm<sup>-2</sup> h<sup>-1</sup>) while generating 34.2 mW cm<sup>-2</sup> of electrical power. Techno-economic analysis establishes the inaugural empirical validation of economic feasibility for corrosion-driven energy-matter symbiosis, highlighting its high gross profit. Transcending conventional corrosion engineering boundaries for inorganic synthesis, this methodology mechanistically deciphers MOF growth kinetics and advanced system design. By broadening the scope of corrosion utilization, this work enables a paradigm shift from damage mitigation to value creation, providing a blueprint for sustainable chemical-energy ecosystems.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202507722"},"PeriodicalIF":0.0,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144510263","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":"A 'Cocktail' Fluorescent Probe for Multi-ROS Imaging Unveils Ferroptosis-Driven Liver Fibrosis Development.","authors":"Hui Wang, Hongtong Wang, Tiancong Xiu, Xiaoting Zhang, Yue Tang, Wei Zhang, Wen Zhang, Ping Li, Bo Tang","doi":"10.1002/anie.202506728","DOIUrl":"https://doi.org/10.1002/anie.202506728","url":null,"abstract":"<p><p>Liver fibrosis is a pathological repair response triggered by chronic liver injury. Without treatment, it may progress to cirrhosis, liver failure, or hepatocellular carcinoma, contributing to high mortality rates. To date, no approved therapies specifically target advanced liver fibrosis, thus exploring the molecular mechanisms underlying liver fibrosis has become crucial. Previous studies have highlighted significant controversy regarding the role of ferroptosis in liver fibrosis. Given that ROS serve as key mediators in both ferroptosis and liver fibrosis, ROS may serve as a molecular nexus connecting ferroptosis and liver fibrosis. To comprehensively elucidate the molecular network involving ROS and ferroptosis in liver fibrosis, we designed and synthesized the first multi-functional 'cocktail' fluorescence probe, FP-ROS, enabling highly sensitive and selective simultaneous imaging of O2•-, H2O2 and ONOO-. FP-ROS was successfully employed to assess ferroptosis levels in the livers of fibrosis mice following drug intervention. Combining transcriptomic and proteomic analyses, we elucidated the signaling pathway NOX→ONOO-→GCLM(C46)→GSH→ferroptosis→hepatic stellate cells (HSCs) activation. This study demonstrates that ferroptosis plays a critical role in HSCs activation and further elucidates the molecular interplay between ROS and ferroptosis in fibrosis progression. These findings provide novel insights into the diagnosis and therapeutic strategies for liver fibrosis.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202506728"},"PeriodicalIF":0.0,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144510258","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}
Ajit Kumar Bishoyi, Jacq van Neer, Salima Bahri, Sophie Lorenz, Hans de Cock, Marc Baldus
{"title":"Solid-state NMR Reveals Reorganization of the Aspergillus fumigatus Cell Wall Due to a Host-Defence Peptide.","authors":"Ajit Kumar Bishoyi, Jacq van Neer, Salima Bahri, Sophie Lorenz, Hans de Cock, Marc Baldus","doi":"10.1002/anie.202509012","DOIUrl":"https://doi.org/10.1002/anie.202509012","url":null,"abstract":"<p><p>The limited availability of antifungal drug treatments and the rising issue of drug resistance highlight the urgent need for new antifungal drugs to combat drug-resistant Aspergillus fumigatus. The host-defence peptide cathelicidin-2 has demonstrated a significant inhibitory effect on azole-resistant Aspergillus fumigatus but its mechanism of action remains elusive. We applied a tailored set 1H and 13C detected solid state nuclear magnetic resonance experiments to elucidate the cell wall composition of Aspergillus fumigatus and to shed light on the mechanism of action of the peptide within the cell wall. Our results revealed that presence of the peptide affects galactosaminogalactan, an important component involved in the pathogenesis of invasive aspergillosis, as well as other specific polysaccharides and amino acids within the mobile cell wall domain. At longer exposure times, the peptide also influences the rigid cell wall domains by enhancing water penetration into the hydrophobic rigid cell wall domain. The findings reveal how the peptide can reach the plasma membrane and may aid the design of novel antifungal drugs with enhanced efficacy.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202509012"},"PeriodicalIF":0.0,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144510266","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}
Pan He, Dongyu Li, Pengyu Yan, Jinchun Zhou, Kaifu Yu, Kecheng Cao, Yang Li, Lijian Ma
{"title":"Structural Differentiation of Homologous Anisodimensional Frameworks Driven by Site-Selective Polymerization.","authors":"Pan He, Dongyu Li, Pengyu Yan, Jinchun Zhou, Kaifu Yu, Kecheng Cao, Yang Li, Lijian Ma","doi":"10.1002/anie.202509415","DOIUrl":"https://doi.org/10.1002/anie.202509415","url":null,"abstract":"<p><p>Theoretically, distinguished from the dimensional isomers in reticular chemistry, structures with different dimensions can also be formed by site-selective polymerization using identical building blocks bearing a high density of reactive sites. Unfortunately, the spatial confinement imposes significant challenges for molecular building blocks to achieve dimensional differentiation via their intrinsic site-selective reactivity. In this work, we first report the dimensional transformation of covalent organic frameworks (COFs) driven by site-selective polymerization of identical molecular building blocks with a high density of reactive sites. This unique phenomenon was demonstrated for the first time to originate from the role of aniline in enhancing the reversibility of the reaction system and modulating the conformational flexibility of the monomers. We systematically elucidated the mechanism underlying this dimensional transformation and successfully demonstrated the generality of the synthetic strategy. Moreover, the residual benzaldehyde in the frameworks generated via the site-selective polymerization of the building blocks can serve as exciton acceptors, significantly enhancing the photocatalytic performance. This work not only offers a novel strategy for regulating the dimensionality of COFs, but also provides a valuable reference for precisely controlling the conformational flexibility of building blocks to enable topological transformations.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202509415"},"PeriodicalIF":0.0,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144510284","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}
Feiyang Liu, Lingyan Liu, Mengfan Zhang, Jinzi Li, Mingxin Li, Peng Wei, Tao Yi
{"title":"A Multivalent Targeting Strategy for Developing Reactive Oxygen Species-Activated Tumor-Seeking Probe to Guide Precise Surgical Resection.","authors":"Feiyang Liu, Lingyan Liu, Mengfan Zhang, Jinzi Li, Mingxin Li, Peng Wei, Tao Yi","doi":"10.1002/anie.202510441","DOIUrl":"10.1002/anie.202510441","url":null,"abstract":"<p><p>Optical molecular imaging with near-infrared (NIR) dyes provides a promising strategy for the visual detection of tumor tissues. However, conventional molecular probes often suffer from poor targeting specificity and low signal contrast during tumor detection. In this work, we developed a reactive oxygen species (ROS)-activated tumor-seeking probe (termed MB-PEG-Bio2) based on a multivalent biotin-targeting strategy. A bivalent biotin-targeting ligand was bonded to an ROS-responsive molecular scaffold to maximize receptor-ligand interactions, resulting in significantly stronger tumor affinity and selectivity of the probe. The optical signal of the proposed probe was initially masked and could be selectively activated by overexpressed ROS levels in the tumor microenvironment. This activation led to the specific release of the clinical dye methylene blue (MB), offering high-contrast NIR fluorescence and photoacoustic imaging signals for precise tumor visualization. MB-PEG-Bio2 demonstrated strong tumor selectivity, enabling the detection of tumors in different mice models, including accurate identification of small tumors (∼3 mm). Consequently, the probe could delineate tumor boundaries during fluorescence-guided surgery, significantly reducing postoperative tumor recurrence.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202510441"},"PeriodicalIF":0.0,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144510260","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}
Kana M Sureshan, Anu Lal, Rishika Rai, Mithun C Madhusudhanan
{"title":"Topochemical Polymerization of Retro-Isomeric Peptides for Tuning the Polymer Structure and Properties.","authors":"Kana M Sureshan, Anu Lal, Rishika Rai, Mithun C Madhusudhanan","doi":"10.1002/anie.202503624","DOIUrl":"https://doi.org/10.1002/anie.202503624","url":null,"abstract":"<p><p>Peptidomimetic polymers containing hydrophobic amino acids and non-peptidic linkages are interesting for various applications, particularly hydrophobic coatings. We synthesized two retro-isomeric peptide monomers decorated with azide and alkyne, viz. N3-L-Phe-L-Val-NHCH2CCH (M1) and its retro-isomer N3-L-Val-L-Phe-NHCH2CCH (M2), for topochemical azide-alkyne cycloaddition (TAAC) polymerization. On heating the crystals at 100 °C, both monomers underwent TAAC polymerization, yielding isomeric 'difficult peptide' polymer mimics. The monomers showed stark differences in reactivity and regiochemistry of the product formed. Monomer M1 yielded polymer P1 having a 1:1 ratio of 1,4- and 1,5-triazolyl-linkages, and monomer M2 reacted regiospecifically, giving 1,4-triazolyl-linked polymer P2. We investigated the hydrophobicity of these isomeric polymers by measuring water contact angles (WCA) of surfaces coated with these polymers; P1 and P2 showed WCA of 120° and 132°, respectively. Our study demonstrates that sequence reversal is a novel approach for accessing structurally and functionally different polymers via topochemical polymerization.</p>","PeriodicalId":520556,"journal":{"name":"Angewandte Chemie (International ed. in English)","volume":" ","pages":"e202503624"},"PeriodicalIF":0.0,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144510287","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}