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Flat Band and Z2 Topology of Kagome Metal CsTi3Bi5

Chinese Physics Letters 2023年第3期 43-51页

作者：王渊刘以轩郝占阳程文静邓竣泽王郁欣顾雨豪马小明戎洪涛张发远郭抒张成成江志诚杨逸尘刘万领姜琦刘正太叶茂沈大伟刘毅崔胜涛王乐刘才林君浩刘影蔡永青朱金龙陈朝宇梅佳伟 shenzhen Institute for Quantum Science and Engineering (SIQSE) and Department of Physics Southern University of Science and Technology (SUSTech) Beijing National Laboratory for Condensed Matter Physics and Institute of PhysicsChinese Academy of Sciences State Key Laboratory of Functional Materials for Informatics and Center for Excellence in Superconducting Electronics Shanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences National Synchrotron Radiation Laboratory University of Science and Technology of China

The simple kagome-lattice band structure possesses Dirac cones, flat band, and saddle point with van Hove singularities in the electronic density of states, facilitating the emergence of various electronic orders. Here we report a titanium-based kagome metal CsTi3Bi5where titanium atoms form a kagome network, resembling its isostructural compound CsV3Sb5. Thermodynamic properties including the magnetization, resistance, and heat capacity reveal the conventional Fermi liquid behavior in the kagome metal CsTi3Bi5and no signature of superconducting or charge density wave（CDW） transition anomaly down to 85 m K. Systematic angle-resolved photoemission spectroscopy measurements reveal multiple bands crossing the Fermi level, consistent with the first-principles calculations. The flat band formed by the destructive interference of hopping in the kagome lattice is observed directly. Compared to Cs V3Sb5, the van Hove singularities are pushed far away above the Fermi level in CsTi3Bi5, in line with the absence of CDW. Furthermore, the first-principles calculations identify the nontrivial Z2topological properties for those bands crossing the Fermi level, accompanied by several local band inversions. Our results suppose CsTi3Bi5as a complementary platform to explore the superconductivity and nontrivial band topology.

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Vortex-induced quasi-shear polaritons

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Advanced Photonics Nexus 2023年第1期2卷 1-5页

作者： Shuwen Xue Yali Zeng Sicen Tao Tao Hou Shan Zhu Chuanjie Hu Huanyang Chen Xiamen University Institute of Electromagnetics and AcousticsCollege of Physical Science and TechnologyDepartment of PhysicsXiamenChina

Hyperbolic shear polaritons(HShPs)emerge with widespread attention as a class of polariton modes with broken symmetry due to shear *** find a mechanism of generating quasi-HShPs(q-HShPs).When utilizing vortex waves as excitation sources of hyperbolic materials without off-diagonal elements,q-HShPs will *** addition,these asymmetric q-HShPs can be recovered as symmetric modes away from the source,with a critical transition mode between the left-skewed and right-skewed q-HShPs,via tuning the magnitude of the off-diagonal imaginary component and controlling the topological charge of the vortex *** is worth mentioning that we explore the influence of parity of topological charges on the field distribution and demonstrate these exotic phenomena from numerical and analytical *** results will promote opportunities for both q-HShPs and vortex waves,widening the horizon for various hyperbolic materials based on vortex sources and offering a degree of freedom to control various kinds of polaritons.

关键词： hyperbolic shear polaritons vortex waves off-diagonal imaginary component scaling factor topological charge.

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Ultracompact phase plate fabricated by femtosecond laser two-photon polymerization for generation of Mathieu–Gauss beams

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Advanced Photonics Nexus 2023年第1期2卷 100-108页

作者： Jue Wang Chengkun Cai Tianhao Fu Kangrui Wang Yize Liang Jian Wang Huazhong University of Science and Technology Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic InformationWuhanChina Optics Valley Laboratory WuhanChina

The Mathieu beam is a typical nondiffracting beam characterized by its propagation invariance and *** extraordinary properties have given rise to potentialities for applications such as optical communications,optical trapping,and material ***,the experimental generation of Mathieu–Gauss beams possessing high quality and compactness is still *** this work,even and helical Mathieu phase plates with different orders m and ellipticity parameters q are fabricated by femtosecond laser two-photon *** experimentally generated nondiffracting beams are propagationinvariant in several hundred millimeters,which agree with numerical *** work may promote the miniaturization of the application of nondiffracting beams in micronanooptics.

关键词： femtosecond laser micromachining two-photon polymerization nondiffracting beams Mathieu–Gauss beams

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Advancing knowledge of One Health in China:lessons for One Health from China's dengue control and prevention programs

Science in One Health

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Science in One Health 2024年第1期3卷 55-65页

作者： Xinyu Feng Na Jiang Jinxin Zheng Zelin Zhu Junhu Chen Lei Duan Peng Song Jiahui Sun Xiaoxi Zhang Lefei Hang Yang Liu Renli Zhang Tiejian Feng Binbin Xie Xiaonen Wu Zhiying Hou Muxin Chen Jinyong Jiang Shizhu Li School of Global Health Chinese Center for Tropical Diseases ResearchShanghai Jiao Tong University School of MedicineShanghai 20025China One Health Center Shanghai Jiao Tong University-The University of EdinburghShanghai 20025China College of Life Sciences Inner Mongolia UniversityHohhot Inner Mongolia 010021China National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases National Institute of Parasitic Diseases at Chinese Center for Disease Control and PreventionChinese Center for Tropical Diseases ResearchShanghai 200025China NHC Key Laboratory for Parasitology and Vector Biology Shanghai 200025China WHO Collaborating Center for Tropical Diseases Shanghai 200025China National Center for International research on Tropical Diseases Shanghai 200025China School of Life Science Fudan UniversityShanghai 200438China Sichuan Center for Disease Control and Prevention Chengdu 610041SichuanChina shenzhen Center for Disease Control and Prevention Shenzhen 518073GuangdongChina Hainan Tropical Disease research Center Haikou 570100HainanChina Yunnan International Joint Laboratory of Tropical Infectious Diseases Yunnan Provincial Key Laboratory of Vector-Borne Diseases Control and ResearchYunnan Key Technology Innovation Team for Insect Borne Infectious Disease Prevention and ControlYunnan Institute of Parasitic DiseasesPu'er 665000YunanChina

Background:The emergence of dengue fever has prompted significant public health responses,highlighting the need for a comprehensive understanding of One Health in addressing vector-borne ***'s experience in dengue control and prevention programs offers valuable insights into the successful integration of multidisciplinary ***:The review aims to:(1)systematically analyze lessons from China's dengue control and prevention programs,focusing on the integration of these efforts with the One Health approach;(2)underscore the reasons of optimizing the dengue control and prevention program;(3)highlight the alignment of China's dengue control strategies with the One Health framework;(4)contribute to global efforts in combating dengue,providing scientific evidence and strategic recommendations for other regions facing similar ***:Through a comprehensive literature review and expert interviews,this study found China's approach to dengue control and prevention implemented through a hierarchical system led by the government,with collaborative efforts across multiple *** multi-sectoral collaboration mechanism enables the technical interventions well executed by health and disease control institutions,optimizing the integration of multiple costeffeteness approaches,such as case management,early detection and outbreak response,reducing local transmission,and minimizing severe cases and *** was found that community participation and public health education have played a vital role in raising awareness,promoting personal protective measures,and enhancing the overall effectiveness of control *** implementation of these integrated interventions has resulted in reduced dengue cases and improved capacity of outbreak ***'s dengue control strategies under the One Health framework,with focus on interdisciplinary collaboration,incorporated environmental and ecological interventions,which reduced mosquito breeding

关键词： Dengue Control and prevention Vector control Community involvement One Health

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微流控电喷雾仿生类红细胞微球用于组织工程（英文）

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Engineering 2024年第9期 78-86页

作者：罗志强蔡丽均陈涵旭陈国璞赵远锦 Department of Rheumatology and Immunology Nanjing Drum Tower Hospital School of Biological Science and Medical Engineering Southeast University Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine Vision and Brain Health) Wenzhou Institute University of Chinese Academy of Sciences

Microparticles have demonstrated value for regenerative medicine. Attempts in this field tend to focus on the development of intelligent multifunctional microparticles for tissue regeneration. Here, inspired by erythrocytes-associated self-repairing process in damaged tissue, we present novel biomimetic erythrocyte-like microparticles(ELMPs). These ELMPs, which are composed of extracellular matrix-like hybrid hydrogels and the functional additives of black phosphorus, hemoglobin, and growth factors(GFs), are generated by using a microfluidic electrospray. As the resultant ELMPs have the capacity for oxygen delivery and near-infrared-responsive release of both GFs and oxygen, they would have excellent biocompatibility and multifunctional performance when serving as microscaffolds for cell adhesion,stimulating angiogenesis, and adjusting the release profile of cargoes. Based on these features, we demonstrate that the ELMPs can stably overlap to fill a wound and realize controllable cargo release to achieve the desired curative effect of tissue regeneration. Thus, we consider our biomimetic ELMPs with discoid morphology and cargo-delivery capacity to be ideal for tissue engineering.

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一步法在氮掺杂MXene纳米片上生长超薄CoSe2纳米带用于枝晶抑制和动力学加速的锂硫电池（英文）

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Science Bulletin 2024年第13期 2059-2070页

作者：魏传亮王正冉王鹏张新鲁安旭光冯金奎奚宝娟熊胜林 School of Chemistry and Chemical Engineering School of Materials Science and Engineering Shandong University School of Mechanical Engineering Chengdu University

The practical application of lithium–sulfur（Li–S） batteries is inhibited by the shuttle effect of lithium polysulfides（LiPSs） and slow polysulfide redox kinetics on the S cathode as well as the uncontrollable growth of dendrites on the Li metal anode. Therefore, both cathode and anode sides must be considered when modifying Li-S batteries. Herein, two-dimensional（2D） ultrathin CoSe2nanobelts are in situ grown on 2D N-doped MXene nanosheets（CoSe2@N-MXene） via one-step solvothermal process for the first time. Owing to its unique 2D/2D structure, CoSe2@N-MXene can be processed to crumpled nanosheets by freeze-drying and flexible and freestanding films by vacuum filtration. These crumpled CoSe2@NMXene nanosheets with abundant active sites and inner spaces can act as S hosts to accelerate polysulfide redox kinetics and suppress the shuttle effect of LiPSs owing to their strong adsorption ability and catalytic conversion effect with LiPSs. Meanwhile, the CoSe2@N-MXene film（CoSe2@NMF） can act as a current collector to promote uniform Li deposition because it contains lithiophilic CoSe2and N sites. Under the systematic effect of CoSe2@N-MXene on S cathode and Li metal anode, the electrochemical and safety performance of Li–S batteries are improved. CoSe2@NMF also shows excellent storage performances in flexible energy storage devices.

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基于离子印迹的二价铜离子非标记检测平台预防听力损失（英文）

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Engineering 2024年第2期 276-282页

作者： Huan Wang Hui Zhang Xiaoli Zhang Hong Chen Ling Lu Renjie Chai The Eighth Affiliated Hospital Sun Yat-Sen University Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging Department of Biomedical Engineering Shenzhen University State Key Laboratory of Digital Medical Engineering Department of Otolaryngology Head and Neck Surgery Zhongda Hospital & Advanced Institute for Life and Health Southeast University Department of Otolaryngology Head and Neck Surgery Jiangsu Provincial Key Medical Discipline Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School Co-Innovation Center of Neuroregeneration Nantong University Department of Otolaryngology Head and Neck Surgery Sichuan Provincial People's Hospital University of Electronic Science and Technology of China Institute for Stem Cell and Regeneration Chinese Academy of Science Beijing Key Laboratory of Neural Regeneration and Repair Capital Medical University

Copper is a microelement with important physiological functions in the ***,the excess copper ion(Cu2+) may cause severe health problems,such as hair cell apoptosis and the resultant hearing ***,the assay of Cu2+is *** integrate ionic imprinting technology（IIT） and structurally colored hydrogel beads to prepare chitosan-based ionically imprinted hydrogel beads（IIHBs） as a low-cost and high-specificity platform for Cu2+*** IIHBs have a macroporous microstructure,uniform size,vivid structural color,and magnetic *** incubated in solution,IIHBs recognize Cu2+and exhibit a reflective peak change,thereby achieving label-free *** addition,benefiting from the IIT,the IIHBs display good specificity and selectivity and have an imprinting factor of 19.14 at 100 μmol·*** features indicated that the developed IIHBs are promising candidates for Cu2+detection,particularly for the prevention of hearing loss.

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压力动态过程中负性情绪在外侧缰核的“输入-输出”特异性整合（英文）

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2024年第12期 1055-1066页

作者：黄泰达郭肖楠黄小敏易陈菊崔一卉董一言浙江大学医学院附属第四医院神经内科与国际健康医学研究院浙江大学医学院脑科学与脑医学学院附属邵逸夫医院神经内科国家卫生健康委员会与中国医学科学院医学神经生物学重点实验室浙江大学教育部脑与脑机融合前沿科学中心中山大学附属第七医院科研中心广东省脑功能与疾病重点实验室深圳市中药活性物质筛选与转化重点实验室

压力是抑郁障碍的主要风险因素，通过在特定的脑区和神经环路产生持久的功能异常，进而导致抑郁发作。在压力积累的动态过程中，外侧缰核是大脑众多区域中处理负性情绪信息的关键枢纽，因此被认为参与抑郁症发病。外侧缰核的神经元整合... 详细信息

压力是抑郁障碍的主要风险因素，通过在特定的脑区和神经环路产生持久的功能异常，进而导致抑郁发作。在压力积累的动态过程中，外侧缰核是大脑众多区域中处理负性情绪信息的关键枢纽，因此被认为参与抑郁症发病。外侧缰核的神经元整合了不同上游脑区输入的负性情绪效价，其中有多个上游脑区选择性支配外侧缰核内侧部或外侧部。与此同时，外侧缰核的亚区通过投射到下游不同的中脑靶区，进行负性情绪效价的分配，并且形成反馈神经环路。尽管已有这些进展，但是在压力诱发抑郁样状态的发病过程中，以外侧缰核为核心的神经环路时空动态机制依然是一个未解之谜。本综述试图提出一个理论框架，描述外侧缰核通过“输入-输出”特异性的神经元架构进行负性情绪效价的整合。值得注意的是，最近的研究揭示了外侧缰核具有一种在生理情况下响应多种压力刺激的“赫伯可塑性”，能够通过特定的上游输入促进神经元的过度兴奋，进而因果性地编码慢性压力的经历和驱动抑郁的发生。综上所述，外侧缰核神经环路的最新进展和未来展望将为抑郁症的早期干预和神经环路特异的抗抑郁疗法带来曙光。

关键词：外侧缰核神经环路厌恶压力动态抑郁样状态头对头对比

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