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Enhanced fatigue resistance of ferroelectric Al0.65Sc0.35N deposited by physical vapor deposition

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Science China(Information Sciences) 2024年第5期67卷 335-336页

作者： Yang LI Danyang YAO Yan LIU Zhi JIANG Ruiqing WANG Xu RAN Jiuren ZHOU Qikun WANG Guoqiang WU Genquan HAN School of Microelectronics Xidian University Hangzhou institute of Technology Xidian University Ultratrend Technologies Inc. emerging Device and Chip Laboratory Institute of Technological Sciences Wuhan University

Aluminum scandium nitride(AlScN), a Ⅲ-Ⅴ ternary semiconductor, has been recognized as an innovative and promising ferroelectric material in emerging research. Among the characteristics of ferroelectric material, fatigue resistance is a critical measure of the endurance of ferroelectric films and represents an inherent challenge in the pursuit of practical applications.

关键词： Physical vapor deposition

Advances of high-performance LiNi_(1-x-y)Co_(x)M_(y)O_(2) cathode materials and their precursor particles via co-precipitation process

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Particuology 2024年第3期86卷 67-85页

作者： Wenbiao Liang Yin Zhao Liyi Shi Zhuyi Wang Yi Wang Meihong Zhang Shuai Yuan School of Materials Science and Engineering Shanghai UniversityShanghai200444China Research Center of Nanoscience and Nanotechnology Shanghai UniversityShanghai200444China emerging Industries institute Shanghai UniversityJiaxingZhejiang314006China

Layered LiNi_(1-x-y)Co_(x)M_(y)O_(2)(M=Mn or Al)is a promising cathode material for lithium-ion batteries due to its high specific capacity and acceptable manufacturing ***,the polycrystalline LiNi_(1-x-y)Co_(x)M_(y)O_(2) cathode material suffers from disordered orientation of primary particles and poor geometric symmetry of secondary particles,which severely hampers the migration of Lit ***,the resulting anisotropy accelerates the disintegration of the secondary particle structure,significantly affecting the electrochemical performance of the polycrystalline *** spite of less grain boundary,the single-crystal LiNi_(1-x-y)Co_(x)M_(y)O_(2) cathodes still suffer from severe microcracks generated by repeated planar gliding during cycling,which poses a great challenge to the cycling stability of single-crystal ***'s worth noting that the microstructure of the cathode material is mainly inherited from its ***,it is necessary to deeply understand the influence of the microstructure of Ni_(1-x-y)Co_(x)M_(y)(OH)2 on the electrochemical properties of LiNi_(1-x-y)Co_(x)M_(y)O_(2) cathode materials,so as to optimize the production process of preparing high-performance cathode *** this review,we summarize recent advances in the research and development of Ni-rich cathode precursor ***,the challenges faced by the Ni-rich hydroxide precursor materials are presented,including the effect of primary particle morphology and arrangement on the electrochemical performance of cathode materials,the influence of secondary particle morphology on lithium insertion reactions in cathode,and the effect of particle size on the microcracking of single-crystal ***,the presentation of the conventional co-precipitation reactor,the mechanism of precursor particle growth,and the influence of coprecipitation parameters are described in ***,the strategies are systematically discussed to solve the cha

关键词： Lithium-ion batteries Cathode materials Co-precipitation Ni-rich layered oxides Single crystal Precursor particles

Small mammal community composition impacts bank vole (Clethrionomys glareolus) population dynamics and associated seroprevalence of Puumala orthohantavirus

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Integrative Zoology 2024年第1期19卷 52-65页

作者： Felicitas Maria BUJNOCH Daniela REIL Stephan DREWES Ulrike MROSENFELD Rainer G.ULRICH Jens JACOB Christian IMHOLT Julius Kühn-institute Federal Research Centre for Cultivated PlantsInstitute for Epidemiology and Pathogen DiagnosticsRodent ResearchMünsterGermany University of Münster Institute for Evolution and BiodiversityMünsterGermany Friedrich-Loeffler-Institut Federal Research Institute for Animal HealthInstitute of Novel and Emerging Infectious DiseasesGreifswald-Insel RiemsGermany

Rodents are important reservoirs for zoonotic pathogens that cause diseases in *** is hypoth-esized to be closely related to pathogen prevalence through multiple direct and indirect *** example,the presence of non-host species can reduce contact rates of the main reservoir host and thus reduce the risk of transmission(“dilution effect”).In addition,an overlap in ecological niches between two species could lead to increased interspecific competition,potentially limiting host densities and reducing density-dependent pathogen transmission *** this study,we investigated the relative impact of population-level regulation of direct and indirect drivers of the prevalence of Puumala orthohantavirus(PUUV)in bank voles(Clethrionomys glareolus)during years with high *** compiled data on small mammal community composition from four regions in Germany between 2010 and *** equation modeling revealed a strong seasonality in PUUV control mechanisms in bank *** abundance of shrews tended to have a negative relationship with host abundance,and host abundance positively influenced PUUV seroprevalence,while at the same time increasing the abundance of competing non-hosts like the wood mouse(Apodemus sylvaticus)and the yellow-neckedfield mouse(Apodemusflavicollis)were associated with reduced PUUV seroprevalence in the *** results indicate that for PUUV in bank voles,dilution is associated with increased interspecific *** pressures leading to the decline of Apodemus *** a specific habitat could lead to the amplification of mechanisms promoting PUUV transmission within the host populations.

关键词： bank vole biodiversity Puumala orthohantavirus small mammals

Co-immunoprecipitation for identifying protein–protein interaction on lipid droplets

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Biophysics Reports 2024年第2期10卷 102-110页

作者： Xiaochuan Fu Shuyan Zhang Pingsheng Liu institute of Biophysics Chinese Academy of Sciences University of Chinese Academy of Sciences institute of Infectious Diseases Beijing Key Laboratory of Emerging Infectious Diseases Beijing Ditan HospitalCapital Medical University Beijing institute of Infectious Diseases

The lipid droplet(LD) is a conserved organelle that exists in almost all organisms, ranging from bacteria to mammals. Dysfunctions in LDs are linked to a range of human metabolic syndromes. The formation of protein complexes on LDs is crucial for maintaining their function. Investigating how proteins interact on LDs is essential for understanding the role of LDs. We have developed an effective method to uncover protein–protein interactions and protein complexes specifically on LDs. In this method, we conduct co-immunoprecipitation(co-IP) experiments using LD proteins extracted directly from isolated LDs, rather than utilizing proteins from cell lysates. To elaborate, we begin by purifying LDs with high-quality and extracting LD-associated proteins. Subsequently, the co-IP experiment is performed on these LD-associated proteins directly, which would enhance the co-IP experiment specificity of LDassociated proteins. This method enables researchers to directly unveil protein complexes on LDs and gain deeper insights into the functional roles of proteins associated with LDs.

关键词： Lipid droplet Co-immunoprecipitation Protein interaction

Efficient cold atom source from a single-layer atom chip

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Chinese Optics Letters 2024年第6期22卷 103-108页

作者： Petr Skakunenko Darya Bykova Anton Afanasiev Alexey Kalmykov Roman Kirtaev Victor Balykin institute of Spectroscopy Russian Academy of Sciences Moscow 108840Russia Moscow institute of Physics and Technology Moscow 141700Russia Skolkovo institute of Science and Technology Moscow 121205Russia National Research University Higher School of Economics Moscow 101000Russia Present affiliation:emerging Technologies Research Center XPANCEODubaiUnited Arab Emirates

We developed a new single-layer atom chip with an additional U-shaped current-carrying *** new U-shaped microwire creates optimized magnetic field distribution,which increases the trapping volume of a magneto-optical trap(MOT) near the *** approach allows one to localize more atoms,while a setup remains relatively simple (single-layer approach) and consumes low current (up to 10 A). The total number of trapped^(87)Rb atoms in our setup is 5×10^(7).

关键词： atom chip cold atoms laser cooling magneto-optical trap U-MOT

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A rapid and visual detection method for Crimean-Congo hemorrhagic fever virus by targeting S gene

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Journal of Integrative Agriculture 2024年第6期23卷 2149-2153页

作者： Xingqi Liu Zengguo Cao Boyi Li Pei Huang Yujie Bai Jingbo Huang Zanheng Huang Yuanyuan Zhang Yuanyuan Li Haili Zhang Hualei Wang State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases/Key Laboratory for Zoonosis Research of the Ministry of Education Institute of ZoonosisCollege of Veterinary MedicineJilin UniversityChangchun 130062China Key Laboratory of Special pathogens and Biosafety Wuhan Institute of VirologyCenter for Biosafety Mega-ScienceChinese Academy of SciencesWuhan 430071China

Crimean-Congo hemorrhagic fever(CCHF)is a zoonotic disease caused by the CCHF virus(CCHFV),which is primarily transmitted by ticks(Lorenzo Juanes et al.2023).It is an emerging disease that occurs sporadically in Africa,Asia,and Europe,with a high morbidity and mortality rate,as high as 30%in humans(Ceylan et al.2013).CCHFV,belonging to genus Nairovirus,family Bunyaviridae,was first identified in the Congo in the 1960s.

关键词： hemorrhagic fever

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NSUN2 mediates distinct pathways to regulate enterovirus 71 replication

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Virologica Sinica 2024年第4期39卷 574-586页

作者： Lishi Liu Zhen Chen Kui Zhang Haojie Hao Li Ma Haizhou Liu Baocheng Yu Shuang Ding Xueyan Zhang Miao Zhu Xiang Guo Yi Liu Haibin Liu Fang Huang Ke Peng Wuxiang Guan Center for emerging Infectious Diseases Wuhan Institute of VirologyCenter for Biosafety Mega-ScienceChinese Academy of SciencesWuhanHubei430071China University of Chinese Academy of Sciences Beijing100049China Hubei Jiangxia Laboratory WuhanHubei430200China

Increasing evidences suggest that the methyltransferase NSUN2 catalyzes 5-methylcytosine(m5C)modifications on viral RNAs,which are essential for the replication of various *** the function of m5C deposition is well characterized,other potential roles of NSUN2 in regulating viral replication remain largely *** this study,the m5C modified residues catalyzed by NSUN2 on enterovirus 71(EV71)RNAs were ***2,along with m5C modifications,played multiple roles during the EV71 life *** m5C modified nucleotides increased the translational efficiency and stability of EV71 ***,NSUN2 was found to target the viral protein VP1 for binding and promote its stability by inhibiting the ***,both viral replication and pathogenicity in mice were largely attenuated when functional m5C residues were *** together,this study characterizes distinct pathways mediated by NSUN2 in regulating EV71 replication,and highlights the importance of its catalyzed m5C modifications on EV71 RNAs for the viral replication and pathogenicity.

关键词： NSUN2 5-methylcytosine Enterovirus 71 Ubiquitination Pathogenicity

Direct observation of ordered-disordered structural transition of MoS_(2)-confined ionic liquids

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Chinese Journal of Chemical Engineering 2024年第8期72卷 126-132页

作者： Yumiao Lu Weilu Ding Kun Li Yanlei Wang Bobo Cao Ruirui He Hongyan He CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Mesoscience and EngineeringBeijing Key Laboratory of Ionic Liquids Clean ProcessInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Longzihu New Energy Laboratory Zhengzhou Institute of Emerging Industrial TechnologyZhengzhou 450000China

Ionic liquids(ILs)are an emerging class of media of fundamental importance for chemical engineering,especially due to their interaction with solid ***,we explore the growth phenomenon of surface-confined ILs and reveal a peculiar structural transition behavior from order to disorder above a threshold *** behavior can be explained by the variation of interfacial forces with increasing distance from the solid *** structural observation of different ILs highlights the influence of the ionic structure on the growth ***,the length of the alkyl chain in the cation is found to be a determining factor for the ordering ***,the thermal stability of surface-confined ILs is investigated in depth by controlling annealing *** is found that the ordered monolayer ILs exhibit high robustness against high *** findings provide new perspectives on the properties of surface-confined ILs and open up potential avenues for manipulating the structures of nanometer-thick IL films for various applications.

关键词： Ionic liquids(ILs) Surface-confined ILs Structural transition Thermal stability Interfacial forces

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The Current State and Progress of Mpox Vaccine Research

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China CDC weekly 2024年第7期6卷 118-125页

作者： Xinlong Wang Zhixia Gu Shugui Sheng Rui Song Ronghua Jin Beijing Key Laboratory of emerging Infectious Diseases Institute of Infectious DiseasesBeijing Ditan HospitalCapital Medical UniversityBeijingChina National Center for Infectious Diseases Beijing Ditan HospitalCapital Medical UniversityBeijingChina

On July 23,2022,the World Health Organization(WHO)declared the monkeypox(mpox)outbreak a“Public Health Emergency of International Concern.”Since 2022,outbreaks of mpox in many countries around the world have primarily resulted in fatalities among immunocompromised individuals,such as untreated HIV/AIDS *** the eradication of smallpox was declared by the WHO in 1980,the global vaccination against smallpox has been gradually *** also stopped routine smallpox vaccination in *** protective effect of the smallpox vaccine has decreased over time due to aging and declining immunity in those who were *** individuals,timely vaccination against smallpox is an effective means of protection against ***,due to safety concerns with the smallpox vaccine and the limitations of current mpox vaccines,there is no vaccine that is safe,effective,and has low side effects applied in clinical *** article provides a comprehensive review of the development of mpox virus(MPXV)vaccines,their application in special populations,and the current state of vaccine research,considering the etiology,transmission,and prevention of the ***,as an effective method of epidemic prevention,can provide long-term immune protection and effectively reduce the severity of ***,as there is no licensed specific MPXV vaccine available globally,the vaccines currently used for mpox prevention are mostly smallpox *** smallpox vaccines can offer some degree of protection against mpox by activating cross-protection in the body.

关键词： prevention routine protective