Materials Chemistry Frontiers最新文献_第8页

Correction: LiGaO2-mediated grain boundary engineering in Ta-doped Li7La3Zr2O12 solid electrolyte 修正：在掺ta的Li7La3Zr2O12固体电解质中，ligao2介导的晶界工程

IF 6.4 2区材料科学

Materials Chemistry Frontiers Pub Date : 2026-03-02 DOI: 10.1039/D6QM90013E

Jie Liu, Yongjian Zhou, Zhan Wang, Zhihan Liu, Hao Tang, Weijun Tuo and Bingbing Tian

引用次数: 0

A light-triggered nitric oxide-photothermal nanoplatform for combating bacterial infections and promoting wound healing 一种用于对抗细菌感染和促进伤口愈合的光触发一氧化氮光热纳米平台

IF 8.1 2区材料科学

Materials Chemistry Frontiers Pub Date : 2026-03-02 DOI: 10.1039/D5QM00882D

Dan Qing, Weihao Sun, Hanyang Wang, Jiabao Zhang, Hao An, Xurui Li, Xiuyan Wei and Zhihong Bao

{"title":"A light-triggered nitric oxide-photothermal nanoplatform for combating bacterial infections and promoting wound healing","authors":"Dan Qing, Weihao Sun, Hanyang Wang, Jiabao Zhang, Hao An, Xurui Li, Xiuyan Wei and Zhihong Bao","doi":"10.1039/D5QM00882D","DOIUrl":"https://doi.org/10.1039/D5QM00882D","url":null,"abstract":"Bacterial infections pose a significant and ongoing threat to the general population, leading to high rates of morbidity and death globally. Antibiotics are commonly used to treat bacterial infections, but bacterial resistance to antibiotics develops rapidly over time. Photothermal therapy (PTT) has emerged as a possible antibiotic replacement therapy owing to its high spatiotemporal controllability and targeted destruction. However, relying solely on the heat generated by PTT for bacterial eradication may lead to secondary damage to healthy tissues due to excessive heat, potentially compromising the therapeutic results. Combining PTT with multiple antibacterial therapies can enhance antibacterial efficacy while minimizing the side effects associated with a single antibacterial approach. Herein, we propose an antibacterial nanoplatform composed of gold nanorod–copper sulfide photothermal hybrid nanoparticles (Au NR-CuS NPs, in short AC) and a ruthenium nitrosyl nitric oxide donor (in short Ru–NO). The constructed nanoplatform (Au NR-CuS@Ru–NO NPs, in short ACRN) exhibited combined mild photothermal/nitric oxide (mPTT/NO) antibacterial performance under single laser irradiation at 808 nm. When exposed to 808 nm laser irradiation, ACRN exhibited strong broad-spectrum antibacterial activity, according to in vitro tests. Crucially, it may considerably prevent the formation of biofilms of Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). Due to the presence of NO, ACRN promoted wound healing by improving anti-inflammation, collagen deposition, and angiogenesis and markedly lessened wound inflammation in S. aureus-infected mice. Therefore, this work proposes a novel strategy aimed at enhancing the antibacterial efficacy of antibiotic-free treatment and provides the groundwork for the design of a nanoplatform based on mPTT/NO synergy.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 12","pages":" 2065-2079"},"PeriodicalIF":8.1,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148261412","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

A simple and cost-effective thiophene–benzene–thiophene-based hole transporting material for stable perovskite solar cells 一种用于稳定钙钛矿太阳能电池的简单且具有成本效益的噻吩-苯-噻吩基空穴传输材料

IF 6.4 2区材料科学

Materials Chemistry Frontiers Pub Date : 2026-03-01 DOI: 10.1039/D5QM00763A

Nousheen Syed, Ankita Sharma, Thillaiarasi Sukumar, Ganesh Koyyada, David Kreher, Baswanth Oruganti, Upendra Kumar Pandey and Kamatham Narayanaswamy

{"title":"A simple and cost-effective thiophene–benzene–thiophene-based hole transporting material for stable perovskite solar cells","authors":"Nousheen Syed, Ankita Sharma, Thillaiarasi Sukumar, Ganesh Koyyada, David Kreher, Baswanth Oruganti, Upendra Kumar Pandey and Kamatham Narayanaswamy","doi":"10.1039/D5QM00763A","DOIUrl":"https://doi.org/10.1039/D5QM00763A","url":null,"abstract":"The efficiency and stability of perovskite solar cells (PSCs) are often constrained by the limitations of the conventional hole transporting material (HTM), Spiro-OMeTAD, which exhibits low intrinsic conductivity, poor thermal endurance, dopant-induced instability and high synthetic cost. In this work, two low-cost HTMs, NS-1 and NS-2, were designed and synthesized via a facile process. Both materials share a common thiophene–benzene–thiophene (TBT) conjugated core with triarylamine terminal groups but differ in their side chains: NS-1 contains methoxy (–OCH3) substituents, whereas NS-2 incorporates polar ethylene glycol moieties on the TBT unit. These HTMs were synthesized through a cost-effective route, with material costs of $35 per g and $37 per g for NS-1 and NS-2, respectively, lower than that of the commercially available Spiro-OMeTAD (∼$333 per g). The influence of side-chain engineering on their optical, electrochemical, photophysical, charge-transport, and photovoltaic properties was systematically investigated. Among the two, NS-2 exhibited superior molecular planarity, enhanced hole mobility and better energy-level alignment, leading to an impressive power conversion efficiency (PCE) of 17.50%, compared to 4.96% for NS-1, which suffered from poor solubility and non-uniform film formation. Moreover, NS-2-based devices retained 84% of their initial efficiency after 1200 hours of operation, surpassing Spiro-OMeTAD in stability. The combination of high efficiency, long-term stability and low-cost synthesis establishes NS-2 as a promising HTM for scalable PSCs.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 10","pages":" 1603-1618"},"PeriodicalIF":6.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/qm/d5qm00763a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147958901","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

Interlayer acid-engineered 3D graphene oxide membranes with efficient proton transport and enhanced fuel cell performance 具有高效质子传输和增强燃料电池性能的层间酸工程3D氧化石墨烯膜

IF 6.4 2区材料科学

Materials Chemistry Frontiers Pub Date : 2026-02-27 DOI: 10.1039/D6QM00011H

Hafijul Islam, Md. Saidul Islam, Lutfia Isna Ardhayanti, Kashfia Nawrin, Sayan Saha, Satsuki Tomatsu, Yoshihiro Sekine, Shintaro Ida and Shinya Hayami

{"title":"Interlayer acid-engineered 3D graphene oxide membranes with efficient proton transport and enhanced fuel cell performance","authors":"Hafijul Islam, Md. Saidul Islam, Lutfia Isna Ardhayanti, Kashfia Nawrin, Sayan Saha, Satsuki Tomatsu, Yoshihiro Sekine, Shintaro Ida and Shinya Hayami","doi":"10.1039/D6QM00011H","DOIUrl":"https://doi.org/10.1039/D6QM00011H","url":null,"abstract":"Three-dimensional graphene oxide (3DGO) hybrid membranes intercalated with trifluoromethanesulfonic acid (TFMSA) and 3-hydroxy propane sulfonic acid (HPSA) were developed to overcome the intrinsic limitations of out-of-plane proton transport in layered GO systems. The fluorinated and hydroxy sulfonic acid molecules act as non-covalent intercalators, expanding the interlayer spacing and forming continuous hydrogen-bonded networks that facilitate rapid proton hopping. The resulting 3DGO-TFMSA hybrid exhibits a markedly improved proton conductivity of 1.8 × 10−1 S cm−1 at 65 °C and 90% RH, nearly two orders of magnitude higher than pristine 3DGO (5.1 × 10−3 S cm−1). In addition, 3DGO-HPSA shows a more than ten times higher proton conductivity of 5.4 × 10−2 S cm−1 under the same conditions. Structural and spectroscopic analyses (PXRD, FTIR, Raman, TGA, and SEM) confirm the successful intercalation and enhanced water adsorption, while fuel-cell tests demonstrate a peak power density of 226.7 mW cm−2 and 179.2 mW cm−2 for 3DGO-TFMSA and 3DGO-HPSA membranes, respectively. The lower activation energy of 3DGO-TFMSA (0.30 eV) and 3DGO-HPSA (0.19 eV) supports the dominance of the Grotthuss mechanism through hydrogen-bond-mediated channels. This interlayer engineering strategy using fluorinated acids or hydroxy sulfonic acids provides a general, scalable route for constructing high-performance, humidity-tolerant proton exchange membranes for next-generation fuel cell technologies.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 8","pages":" 1334-1342"},"PeriodicalIF":6.4,"publicationDate":"2026-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147720922","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

A scalable kinetic Monte Carlo platform for charge transport dynamics in polymer-based memristive systems 基于聚合物的忆阻系统中电荷输运动力学的可扩展动力学蒙特卡罗平台

IF 6.4 2区材料科学

Materials Chemistry Frontiers Pub Date : 2026-02-25 DOI: 10.1039/D5QM00811E

Gerliz M. Gutiérrez-Finol, Kirill Zinovjev, Alejandro Gaita-Ariño and Salvador Cardona-Serra

{"title":"A scalable kinetic Monte Carlo platform for charge transport dynamics in polymer-based memristive systems","authors":"Gerliz M. Gutiérrez-Finol, Kirill Zinovjev, Alejandro Gaita-Ariño and Salvador Cardona-Serra","doi":"10.1039/D5QM00811E","DOIUrl":"https://doi.org/10.1039/D5QM00811E","url":null,"abstract":"Polymer assisted ion transport plays a central role in both energy storage technologies and emerging neuromorphic computing devices. Accurately modeling how ions move is crucial for understanding the behavior of batteries and memristors, yet it remains difficult due to the combined effects of drift, diffusion, and electrostatic interactions, along with the limits of continuum models and molecular dynamics. These issues are especially important in the context of the climate and energy crisis, where high performance, low carbon technologies rely on well optimized ion conducting materials and devices. In this work, we present a scalable and flexible stochastic simulation platform based on Markov chain Monte Carlo methods to model ion migration in solid state systems. The platform uses a vectorized, rail based description of device geometry, which allows fast simulations of lateral ion transport and space charge effects while keeping the inherently random nature of ion hopping. It supports a wide range of material systems and can incorporate experimental parameters without requiring changes to the code. We also introduce an implementation optimized for highly energy efficient GPUs, which boosts performance while lowering the carbon footprint of the simulations. Validation with polymer based memristive devices shows that the simulator captures key behaviors such as relaxation decay, current voltage hysteresis, and learning and forgetting dynamics. By combining computational efficiency with relevant mesoscale physics, this platform offers a practical and versatile tool for exploring ion driven processes in energy storage and neuromorphic devices, supporting exploratory and applied research.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 9","pages":" 1437-1445"},"PeriodicalIF":6.4,"publicationDate":"2026-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/qm/d5qm00811e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147808129","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

Self-powered sucrose detection using a superhydrophobic liquid–solid triboelectric nanogenerator 使用超疏水液-固摩擦电纳米发电机的自供电蔗糖检测

IF 6.4 2区材料科学

Materials Chemistry Frontiers Pub Date : 2026-02-25 DOI: 10.1039/D6QM00006A

Premkumar Sharad Bhosale, Sugato Hajra, Swati Panda, Kushal Ruthvik Kaja, Mohamed Belal, Soon Moon Jeong and Hoe Joon Kim

{"title":"Self-powered sucrose detection using a superhydrophobic liquid–solid triboelectric nanogenerator","authors":"Premkumar Sharad Bhosale, Sugato Hajra, Swati Panda, Kushal Ruthvik Kaja, Mohamed Belal, Soon Moon Jeong and Hoe Joon Kim","doi":"10.1039/D6QM00006A","DOIUrl":"https://doi.org/10.1039/D6QM00006A","url":null,"abstract":"Real-time monitoring of sucrose concentration is essential in intelligent industrial processing, food quality control, and biochemical manufacturing, creating demand for sustainable and autonomous sensing technologies. In this work, a liquid–solid triboelectric nanogenerator (LS-TENG) is developed for simultaneous energy harvesting and sucrose concentration sensing using deionized water (DI) and sucrose solutions as the active liquid medium. The device employs a hydrophobic polytetrafluoroethylene (PTFE) surface as the solid triboelectric layer, enabling repeated charge generation during droplet contact–separation events. Changes in sucrose concentration significantly affect charge density and electrical output, enabling quantitative sensing without external power sources. The developed LS-TENG achieves a maximum output voltage of −37 V and a current of 52 nA, demonstrating efficient conversion of droplet kinetic energy into electrical signals. The sensing mechanism is attributed to sucrose-induced disruption of the hydrogen-bonding network of water, forming sucrose–water interactions that alter solution conductivity and flow behavior. This study introduces a sustainable, self-powered triboelectric sensing probe, offering a promising platform for real-time sucrose monitoring in smart industrial and process-control applications.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 9","pages":" 1409-1417"},"PeriodicalIF":6.4,"publicationDate":"2026-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2026/qm/d6qm00006a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147808174","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

Decoupled rigid–flexible synergistic assembly in robust hydrogen-bonded organic frameworks for directional proton transport 用于质子定向输运的氢键有机框架中的解耦刚柔协同组装

IF 6.4 2区材料科学

Materials Chemistry Frontiers Pub Date : 2026-02-24 DOI: 10.1039/D6QM00085A

Zhongxin Wei, Jiawei Jiang, Zizhu Yao, Chulong Liu, Shengchang Xiang and Zhangjing Zhang

{"title":"Decoupled rigid–flexible synergistic assembly in robust hydrogen-bonded organic frameworks for directional proton transport","authors":"Zhongxin Wei, Jiawei Jiang, Zizhu Yao, Chulong Liu, Shengchang Xiang and Zhangjing Zhang","doi":"10.1039/D6QM00085A","DOIUrl":"https://doi.org/10.1039/D6QM00085A","url":null,"abstract":"Developing proton-conducting materials that simultaneously exhibit high conductivity and robust structural stability remains a central challenge for clean energy technologies such as proton exchange membrane fuel cells. Hydrogen-bonded organic frameworks (HOFs) provide a versatile platform owing to their designable hydrogen-bond networks, yet precise regulation of proton-transport pathways without sacrificing framework robustness is still limited. Herein, we report a decoupled rigid–flexible synergistic assembly strategy for constructing robust HOFs with directional proton-transport behavior. By combining a rigid tetraaniline-based building unit with linear disulfonate components of different flexibility, two HOFs, HOF-FJU-356 and HOF-FJU-357, were successfully constructed. Structural analyses reveal that both frameworks possess well-defined one-dimensional channels stabilized by charge-assisted N–H+⋯−O–S hydrogen bonds, while variations in the flexible components lead to distinct channel environments and water-organization modes. As a result, HOF-FJU-356 exhibits a more developed hydrogen-bonded network and delivers a proton conductivity of 1.22 × 10−2 S cm−1 at 70 °C and 98% relative humidity, which is approximately one order of magnitude higher than that of HOF-FJU-357. Both materials demonstrate excellent chemical and thermal stability under harsh conditions. This work highlights the effectiveness of design-level decoupling of rigidity and flexibility in regulating channel environments, water organization, and proton-transport behavior, offering a general strategy for the development of stable and efficient proton-conducting HOFs.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 8","pages":" 1327-1333"},"PeriodicalIF":6.4,"publicationDate":"2026-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147720921","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

Bioinspired hierarchical microtexturing: rigidity-compliance synergy for active programmable fluid guidance transport 生物启发层次微纹理：主动可编程流体引导运输的刚度-顺应性协同作用

IF 6.4 2区材料科学

Materials Chemistry Frontiers Pub Date : 2026-02-18 DOI: 10.1039/D5QM00925A

Linyang Li, Lu Li, Chunyu Zhang, Honghao Li, Xiaofang Zhang and Dongliang Tian

{"title":"Bioinspired hierarchical microtexturing: rigidity-compliance synergy for active programmable fluid guidance transport","authors":"Linyang Li, Lu Li, Chunyu Zhang, Honghao Li, Xiaofang Zhang and Dongliang Tian","doi":"10.1039/D5QM00925A","DOIUrl":"https://doi.org/10.1039/D5QM00925A","url":null,"abstract":"Bioinspired hierarchical microtexturing has emerged as an extremely attractive strategy for achieving active fluid guidance in applications such as energy conversion, microfluidics technology, and wearable devices. However, as the requirements in these fields become increasingly complex, bridging the rigidity and compliance of the material system is crucial for ensuring the robustness, dynamic responsiveness, and long-term reliability of the interface. This review systematically surveys recent progress in the fabrication and functional implementation of bioinspired hierarchical microtextured surfaces for programmable liquid transport. We separately summarize the manufacturing methods of rigid and compliant bioinspired microtexturing surfaces and their surface fluid guidance mechanisms. Subsequently, we outline the selection and application of rigid and compliant materials in various applications based on surface fluid transmission, and discuss the co-development of rigidity and compliance in these fields. Finally, we outline current challenges and future opportunities for integrating rigidity and compliance to achieve simultaneously precise, adaptive, and reliable fluid transport interfaces. Collectively, this review provides a unified framework and forward-looking perspective on rigid–compliant hybrid architectures, offering more meaningful insights into their application and future development in programmable fluid transport systems.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 7","pages":" 1046-1070"},"PeriodicalIF":6.4,"publicationDate":"2026-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147558469","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

Nonpolar graphene oxide (GO-NP): a heterogeneous liquid crystalline alignment medium for anisotropic NMR in nonpolar organic solvents 非极性氧化石墨烯（GO-NP）：在非极性有机溶剂中用于各向异性核磁共振的非均相液晶取向介质

IF 6.4 2区材料科学

Materials Chemistry Frontiers Pub Date : 2026-02-17 DOI: 10.1039/D5QM00847F

Sandesh Chickmagalur Jatheendranath, Sudhindra H. Deshpande and Udaya Kiran Marelli

引用次数: 0

A rigid phenyl-based covalently interlocked macrocycle with inherent porosity 具有固有孔隙度的刚性苯基共价互锁大环

IF 6.4 2区材料科学

Materials Chemistry Frontiers Pub Date : 2026-02-17 DOI: 10.1039/D6QM00038J

Biao Xia, Hartmut Komber, Sven M. Elbert, Michael Mastalerz and Junzhi Liu

{"title":"A rigid phenyl-based covalently interlocked macrocycle with inherent porosity","authors":"Biao Xia, Hartmut Komber, Sven M. Elbert, Michael Mastalerz and Junzhi Liu","doi":"10.1039/D6QM00038J","DOIUrl":"https://doi.org/10.1039/D6QM00038J","url":null,"abstract":"The precise construction of three-dimensional (3D) carbon networks consisting solely of sp2 hybridized atoms has long been pursued in carbon nanoscience. Herein, we report the bottom-up synthesis of a covalently interlocked macrocycle ([2]CIM) featuring a molecular core of 31 benzene units. X-ray crystallography unambiguously confirmed the covalently interlocked structure of [2]CIM, revealing a rigid 3D architecture with inherent porosity. Its conformational rigidity and solid-state packing enable it to be a promising molecular porous material, exhibiting a specific surface area (SABET) of 507 m2 g−1. Gas absorption studies demonstrated the preferential adsorption of ethane (C2H6) over ethene (C2H4) by the phenyl-based covalently interlocked macrocycle. [2]CIM exhibits a unique gas separation performance among discrete phenyl-based porous macrocycles.","PeriodicalId":86,"journal":{"name":"Materials Chemistry Frontiers","volume":" 11","pages":" 1779-1788"},"PeriodicalIF":6.4,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148104178","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