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A novel flexible nerve guidance conduit promotes nerve regeneration while providing excellent mechanical properties

Neural Regeneration Research 2025年第7期20卷 2084-2094页

作者： Tong Li Quhan Cheng Jingai Zhang Boxin Liu Yu Shi Haoxue Wang Lijie Huang su Zhang Ruixin Zhang Song Wang Guangxu Lu Peifu Tang Zhongyang Liu Kai Wang Department of Orthopedics the Fourth Medical Center of Chinese PLA General HospitalBeijingChina Department of Training and Sports Medicine Characteristic Medical Center of Chinese People’s Armed Police ForceTianjinChina Medical School of Chinese PLA BeijingChina Key Laboratory of Bioactive Materials for the Ministry of Education College of Life SciencesNankai UniversityTianjinChina Department of Orthopedics Tianjin HospitalTianjinChina Department of Rehabilitation Medicine Er Quan Hospital of PAPWuxiJiangsu ProvinceChina

Autografting is the gold standard for surgical repair of nerve defects>5 mm in length;however,autografting is associated with potential complications at the nerve donor *** an alternative,nerve guidance conduits may be *** ideal conduit should be flexible,resistant to kinks and lumen collapse,and provide physical cues to guide nerve *** designed a novel flexible conduit using electrospinning technology to create fibers on the innermost surface of the nerve guidance conduit and employed melt spinning to align ***,we prepared disordered electrospun fibers outside the aligned fibers and helical melt-spun fibers on the outer wall of the electrospun fiber *** presence of aligned fibers on the inner surface can promote the extension of nerve cells along the *** helical melt-spun fibers on the outer surface can enhance resistance to kinking and compression and provide *** novel conduit promoted nerve regeneration and functional recovery in a rat sciatic nerve defect model,suggesting that it has potential for clinical use in human nerve injuries.

关键词： aligned fibers anti-kinking helical fibers nerve guidance conduit nerve regeneration peripheral nerve injury topological guidance

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Strategies for achieving fast-charge and high-voltage polymer-based solid-state lithium metal batteries

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Science China Chemistry 2025年

作者： Zitian Lin sucheng Liu Ce Cui Wuhua Liu Yufeng su Huiyu Song Li Du Jianqiang Hu Zhiming Cui Guangdong Provincial Key Laboratory of Fuel Cell Technology School of Chemistry and Chemical Engineering South China University of Technology

Solid-state polymer electrolytes hold the potential for market application due to the combination of advantageous properties,such as flexibility,ease of processing and low ***,the sluggish ion transport and poor high-voltage stability pose significant challenges for the practical application of polymer-based solid-state lithium metal batteries (SSLMBs).Therefore,the design and development of polymer-based SSLMBs toward fast-charge and high-voltage is of great significance in high-energydensity ***,this review deeply analyzes the mechanism of ion transport and anti-oxidation of polymer-based solidstate ***,we also systematically and comprehensively summarize the factors that affect ionic conductivity and the electrochemical ***,we outline the solution strategies for simultaneously enhancing both ionic conductivity and high-voltage ***,we discuss the main challenges and the future prospects of polymer-based SSLMBs for further *** is hoped that this review can provide both advances and fundamentals to the research community and pave the way for the development of SSLMBs

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TRMT6 and TRMT61A facilitated acute pancreatitis severity via regulation of neutrophil function

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Science China Life Sciences 2025年

作者： Yuan Dong Li su Sin Man Lam Cen Yan Yalan Deng Guotao Lu Jinkui Yang Guanghou Shui Yingmei Feng Beijing Institute of Hepatology Beijing Youan HospitalCapital Medical University Department of Science and Development Beijing Youan HospitalCapital Medical University Laboratory for Clinical Medicine Capital Medical University Neuroscience Research Institute Peking University Center of Medical and Health AnalysisPeking University State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental BiologyChinese Academy of Sciences Pancreatic Center Department of GastroenterologyAffiliated Hospital of Yangzhou UniversityYangzhou University Beijing Key Laboratory of Diabetes Research and Care Department of EndocrinologyBeijing Tongren HospitalCapital Medical University

Dear Editor,Type 2 diabetes mellitus (T2DM) has been identified as a risk factor for increased severity in acute pancreatitis (AP)(Mikóet al,2018).However,to date,no studies have simultaneously included healthy individuals,T2DM patients,and AP patients to investigate which diabetes-associated metabolites are linked to AP severity.

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Maintaining moderate levels of hypochlorous acid promotes neural stem cell proliferation and differentiation in the recovery phase of stroke

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Neural Regeneration Research 2025年第3期20卷 845-857页

作者： Lin-Yan Huang Yi-De Zhang Jie Chen Hai-Di Fan Wan Wang Bin Wang Ju-Yun Ma Peng-Peng Li Hai-Wei Pu Xin-Yian Guo Jian-Gang Shen su-Hua Qi School of Medical Technology Xuzhou Key Laboratory of Laboratory DiagnosticsXuzhou Medical UniversityXuzhouJiangsu ProvinceChina School of Pharmacy Xuzhou Medical UniversityXuzhouJiangsu ProvinceChina Department of Laboratory Medicine Branch Hospital of Huai’an First People’s HospitalHuai’anJiangsu ProvinceChina Department of Laboratory Medicine the Affiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsu ProvinceChina School of Chinese Medicine The University of Hong KongHong Kong Special Administrative RegionChina

It has been shown clinically that continuous removal of ischemia/reperfusion-induced reactive oxygen species is not conducive to the recovery of late ***,previous studies have shown that excessive increases in hypochlorous acid after stroke can cause severe damage to brain *** previous studies have found that a small amount of hypochlorous acid still exists in the later stage of stroke,but its specific role and mechanism are currently *** simulate stroke in vivo,a middle cerebral artery occlusion rat model was established,with an oxygen-glucose deprivation/reoxygenation model established in vitro to mimic *** found that in the early stage(within 24 hours)of ischemic stroke,neutrophils produced a large amount of hypochlorous acid,while in the recovery phase(10 days after stroke),microglia were activated and produced a small amount of hypochlorous ***,in acute stroke in rats,hypochlorous acid production was prevented using a hypochlorous acid scavenger,taurine,or myeloperoxidase inhibitor,4-aminobenzoic acid *** results showed that high levels of hypochlorous acid(200μM)induced neuronal apoptosis after oxygen/glucose deprivation/***,in the recovery phase of the middle cerebral artery occlusion model,a moderate level of hypochlorous acid promoted the proliferation and differentiation of neural stem cells into neurons and *** suggests that hypochlorous acid plays different roles at different phases of cerebral ischemia/reperfusion *** levels of hypochlorous acid(5 and 100μM)promoted nuclear translocation ofβ-*** transfection of single-site mutation plasmids,we found that hypochlorous acid induced chlorination of theβ-catenin tyrosine 30 residue,which promoted nuclear ***,our study indicates that maintaining low levels of hypochlorous acid plays a key role in the recovery of neurological function.

关键词： cell differentiation cerebral ischemia/reperfusion injury chlorination hypochlorous acid microglia neural stem cell neurogenesis nuclear translocation stroke β-catenin

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Affine Power Flow Multi-scenario Uncertainty Analysis Method for Power System

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Dianwang Jishu/Power System Technology 2025年第1期49卷 252-262页

作者： Chen, Feixiong Wu, Hongbin Shao, Zhenguo Li, Yimin Zhang, He su, Weiqi Key Laboratory of Energy Digitalization Fujian Province University Fuzhou University Fujian Province Fuzhou 350108 China Quanzhou Power supply Company of State Grid Fujian Power Co. Ltd. Fujian Province Quanzhou 362000 China

The power flow solution calculated by the existing affine power flow method can only reflect the power flow distribution of the system in a certain range of the source load power, which is difficult to meet the online calculation requirements of multi-scenario uncertainty analysis. To solve these problems, an affine power flow multi-scenario uncertainty analysis method is proposed in this paper. Various holomorphic embedding variables with different physical meanings are used to scale the central values and partial deviation coefficients of the affine injection power. In this way, the interval variation of uncertain injection power is tracked and described, and the analytical dimension of the affine power flow is expanded from one dimension to multiple dimensions. The calculation of affine power flow is divided into two parts: analytic expression solving and online calculation. The multivariate power series coefficients of affine status variables are solved recursively, and the analytical expression for affine power flow is obtained. The online calculation of affine power flow in specific scenarios is realized by substituting the target value of embedded variables. The simulation results verify the advantages of the proposed method in convergence, conservatism and multi-scenario analysis efficiency. © 2025 Power System Technology Press. All rights reserved.

关键词： Load flow control

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Printing perovskite and graphene parallel structure-based optical-mechanical sensors for human-machine interaction

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Science China Technological Sciences 2025年

作者： Sisi CHEN Jiemin ZHANG Nan CHENG Wenbo LI Jing LIU Hongfei XIE Jie ZHANG Yueying CHENG Xiaotong ZHAO Meng su Yanlin SONG Key Laboratory of Green Printing CAS Research/Education Center for Excellence in Molecular Sciences Institute of ChemistryChinese Academy of Sciences (ICCAS) University of Chinese Academy of Sciences Weiyang College Tsinghua University Department of Cardiovascular surgery First Medical Center PLA General Hospital AECC Beijing Institute of Aeronautical Materials Beijing Institute of Graphene Technology Beijing Engineering Research Centre of Graphene Application School of Integrated Circuit & Beijing National Research Center for Information Science and Technology (BNRist) Tsinghua University

surgical robots are designed to provide enhanced precision and dexterity compared to manual surgical procedures,which mainly rely on multimodal sensing technologies for the surgeon to seamlessly operate the robotic arms and *** with single-mode sensors, optical and mechanical bi-modal sensors provide improved precision, enhanced safety,and robustness of human-machine interaction systems. Here, the template-guided and pneumatic printing technologies are combined to construct perovskite and graphene parallel structures with both optical and mechanical sensing capabilities. The printed uniformly crystallized perovskite microstructure exhibits fast and sensitive photoelectric response characteristics,enabling shadow recognition functionality. The combination of graphene and elastic rubber endows the great printability to prepare parallel structures near the perovskite arrays for force sensing capabilities. Thus, the printed perovskite and graphene structures possess non-contact optical sensing capabilities to detect hand position by recognizing shadows between the hand and the sensor, as well as contact mechanical sensing capabilities to detect touch force applied by the hand. It provides a synergistic platform for real-time and multidimensional feedback to improve human-machine interaction.

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Boosting aqueous nickel-zinc battery stability with bimetallic ion-integrated 1D metal-organic nanowires

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Science China Chemistry 2025年

作者： Yihao Chen Jin Liang Yichun su Guoyin Zhu Hengyue Xu Hongye Ding Guangxun Zhang Dianheng Yu Zizhou Shen Yizhou Zhang Wei Huang Huan Pang School of Chemistry and Chemical Engineering Yangzhou University Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM) School of Flexible Electronics (Future Technologies) Nanjing Tech University (NanjingTech) Institute of Advanced Materials and Flexible Electronics (IAMFE) School of Chemistry and Materials Science Nanjing University of Information Science & Technology Department of Chemistry Tsinghua University State Key Laboratory of Coordination Chemistry Nanjing University

Limited by low conductivity,designing cathode materials with excellent electron transfer efficiency for high-performance nickel-zinc batteries （NZBs） remains *** this study,a series of bimetallic metal-organic nanowires were fabricated by doping M ions in NiNTA,resulting in NiMNTA (M=Mg2+,Mn2+,Co2+,Zn2+,Ag+),and NixCo6-xNTA （x=1,2,3,4,5）.The proportions and types of metal ions can be modified without altering the initial coordination structure.X-ray absorption fine structure spectroscopy （XAFS） revealed that only M–O bonds,not metal bonds,were present in the *** performance of Ni2Co4NTA as the cathode for aqueous NZBs was significantly improved,achieving the maximum energy density of 279.17Wh kg-1with the high cycle stability （retention rate of 72.0%after 1,000 cycles）.The flexible Ni2Co4NTA//Zn@carbon cloth battery employing gel electrolyte also exhibits the excellent Coulombic efficiency of 96%after 350 *** approach shows considerable potential for designing one-dimensional materials with bimetallic modifications,providing new strategies for developing cathode materials for NZBs with high specific capacity and cycle stability.

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全球安全倡议与冲突调停的方式创新

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国际安全研究 2025年第1期43卷 30-53,156页

作者：苏若林汪嘉妍上海交通大学国际与公共事务学院上海200030

当今世界和平赤字与安全赤字加剧,地区冲突频发,传统安全与非传统安全风险交织,热点地区的冲突管控成为国际社会共同面临的难题。而调停作为冲突管理的重要方式,在二战后被越来越多地应用于实践中。以美国为代表的西方国家在冲突调停领... 详细信息

当今世界和平赤字与安全赤字加剧,地区冲突频发,传统安全与非传统安全风险交织,热点地区的冲突管控成为国际社会共同面临的难题。而调停作为冲突管理的重要方式,在二战后被越来越多地应用于实践中。以美国为代表的西方国家在冲突调停领域有较长的实践历史,也有较为丰富的成功案例,形成了既有的调停方式。但是,伴随当前冲突复杂性的进一步加强,美国的传统调停方式因其缺乏中立性、威逼利诱并存和灵活性不足等弊端面临巨大的现实挑战。近年来,中国积极参与热点地区的调停工作,不断探索中国特色的热点问题解决之道,担当大国责任,为推动冲突的和平解决贡献中国力量。中国的调停方案与实践呈现出坚持多边主义与国际民主、秉持立场中立与不干涉内政原则、将冲突调停与发展援助相结合、坚持对话与和平方式解决争端以及推动灵活务实的渐进式调停的特点,很好地体现了全球安全倡议的核心理念,是对全球安全倡议的具体落实,也是一种具有中国智慧的国际安全模式探索。

关键词：冲突调停冲突管理全球安全倡议全球安全治理

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Distributed State and Fault Estimation for Cyber-Physical Systems Under DoS Attacks

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IEEE/CAA Journal of Automatica Sinica 2025年第1期 261-263页

作者： Limei Liang Rong su Haotian Xu the School of Control Science and Engineering Shandong University IEEE the School of Electrical and Electronic Engineering Nanyang Technological University

Dear Editor,The letter deals with the distributed state and fault estimation of the whole physical layer for cyber-physical systems(CPSs) when the cyber layer suffers from DoS attacks. With the advancement of embedded computing, communication and related hardware technologies, CPSs have attracted extensive attention and have been widely used in power system, traffic network, refrigeration system and other fields.

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长三角区域新质生产力发展水平、区域差异与时空演变特征

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经济问题 2025年第1期 113-123页

作者：阮素梅邵恬恬安徽财经大学金融学院安徽蚌埠233000

发展新质生产力,是进一步全面深化改革和推进中国式现代化的必然要求。以长三角“一市三省”为研究对象,基于2010—2023年的面板数据,对长三角区域省(市)新质生产力发展水平、变化趋势以及区域差异等进行了测度与分析。研究发现:第一,... 详细信息

发展新质生产力,是进一步全面深化改革和推进中国式现代化的必然要求。以长三角“一市三省”为研究对象,基于2010—2023年的面板数据,对长三角区域省(市)新质生产力发展水平、变化趋势以及区域差异等进行了测度与分析。研究发现:第一,长三角区域新质生产力发展水平整体呈上升趋势,但区域差异较大,地区间发展不平衡现象明显。第二,新质劳动资料对长三角区域新质生产力的贡献最为突出,其次是新质劳动者和新质劳动对象;上海市新质劳动对象的贡献最高,江苏省新质劳动者的贡献占比较大,浙江省新质劳动资料的贡献则更加突出,而安徽省虽没有突出优势,但其新质生产力增长率最高。第三,长三角区域新质生产力发展水平呈极化现象,且江苏省、浙江省、安徽省内部存在新质生产力发展水平较高的城市,省内发展不均衡;从时空动态演进特征看,长三角区域新质生产力不存在“跨越式”发展,但存在“俱乐部收敛”现象。该研究能够为实现长三角区域协同发展,尤其为培育和实现安徽省新质生产力和经济高质量发展提供实践依据和经验借鉴。

关键词：新质生产力长三角区域时空动态演进

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