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Large-area superconducting nanowires fabricated based on laser exposure on photoresist

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Nano Research 2024年第9期17卷 8220-8225页

作者： Han Zhou Shangqing Li Yicong Huang Wenqian Liu Haohui Zhang yao Wu Wenzhi Zhang Enhua Chen Chaoyun Zhang Xiaoliang Wang Daqian Liu Jianxin lin Qingdao Innovation and Development Center of Harbin Engineering University Qingdao 266000China College of Intelligent systems and Engineering Harbin Engineering UniversityHarbin 150000China

To realize large-scale micro/nanofabrication process in superconducting devices,the nano laser direct writing(NLDW)as a potential tool was *** this paper,thermal effect induced laser-matter(superconducting film)interaction based on laser direct writing on Nb films and laser exposure on photoresist were investigated by simulation and *** avoid nanoscale thermal effect on superconducting films,large-scale superconducting nanoarrays with the area up to 100μm×100μm based on laser exposure on photoresist were *** with laser direct writing on superconducting films,which lead to the degradation of superconducting performance such as critical current,transition temperature,the superconducting nanoarrays based on laser exposure on photoresist maintain excellent superconducting performance without *** that,by further optimizing the process parameters and the thickness of photoresist,the nanowires with the width down to nanometers are *** with the traditional electron beam and ion beam process,to some extent,the nanowires fabrication process based on NLDW provides a more efficient and cost-effective path for the fabrication of large-area superconducting devices/circuits.

关键词： nano laser direct writing(NLDW) superconducting nanowire arrays superconducting devices light-matter interaction

Asymmetric Synthesis of Dihydrospirotryprostatin B via a Silica Gel-Mediated Cyclization of Tryptamine-Ynamide

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Chinese Journal of Chemistry 2024年第12期42卷 1355-1359页

作者： Changhong Han Lu Yang Kaizong yao Sen Zhang Jiayue Fu Hanyang Sun Hongsheng Xu Bin lin Maosheng Cheng Yongxiang Liu Key Laboratory of Structure:Based Drug Design and Discovery of Ministry of Education Shenyang Pharmaceutical UniversityShenyangLiaoning 110016China Wuya College of Innovation Shenyang Pharmaceutical UniversityShenyangLiaoning 110016China Institute of Drug Research in Medicine Capital of China BenxiLiaoning 117000China Zhejiang Shapuaisi Pharmaceutical Co. LtdPinghuZhejiang 314299China

Comprehensive Summary An asymmetric synthesis of dihydrospirotryprostatin B was achieved in 15 steps(8 purifications)from *** main feature of our synthetic strategy is the efficient construction of spirocyclic oxindole intermediate containing a chiral quaternary carbon center,involving the silica gel-mediated cyclization of tryptamine-ynamide and oxidation under neat conditions.

关键词： Asymmetric synthesis Alkaloids Dihydrospirotryprostatin B Tryptamine-ynamide Cross-coupling Silica gel-mediated cyclization Oxidation

Quantifying trapping stability of optical tweezers with an external flow

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Photonics Research 2024年第8期12卷 1741-1749页

作者： FENG XU YARONG YU YANG LIU yao CHANG WENXIANG JIAO lin WANG HOPUI HO BEI WU FEI XU YANQING LU YUANJIE PANG GUANGHUI WANG College of Engineering and Applied Sciences Nanjing UniversityNanjing 210093China Key Laboratory of Intelligent Optical Sensing and Integration of the Ministry of Education Nanjing UniversityNanjing 210093China School of Optical and Electronic Information Wuhan National Laboratory of OptoelectronicsHuazhong University of Science and TechnologyWuhan 430074China Department of Biomedical Engineering The Chinese University of Hong KongHong Kong 999077China

Optical tweezers(OTs)can immobilize and manipulate objects with sizes that span between nano-and micrometer *** manipulating ability of OTs is traditionally characterized by stability factor(S),which can only indicate an empirical“hit-or-miss”***,the current quantitative models for trapping stability rarely consider the influence of external *** this paper,a comprehensive analysis to quantify the optical trapping stability in a perturbed asymmetric potential well is presented from the perspective of statistics,especially for weak trapping *** analytical formulation takes experimentally measurable parameters including particle size,optical power,and spot width as inputs and precisely outputs a statistically relevant mean trapping ***,this formulation takes into account general and realistic cases including fluidic flow velocity and other *** verify the model,a back-focal-plane-interferometer-monitored trapping experiment in a flow is set up and the statistical characteristics of trapping time demonstrate good agreement with theoretical *** total,the model quantitatively reveals the effects of external disturbance on trapping time,which will find applications where optical trapping stability is challenged by external perturbations in weak trapping conditions.

关键词： process flow trapping

Achieving a superior Na storage performance of Fe-based Prussian blue cathode by coating perylene tetracarboxylic dianhydride amine

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Carbon Energy 2024年第5期6卷 53-64页

作者： Xin-Yuan Fu Lu-Lu Zhang Zhao-yao Chen Yunkai Xu Junxiu Wu Cheng-Cheng Wang Xiao-Kai Ding Xue-lin Yang Jun Lu Hubei Provincial Collaborative Innovation Center for New Energy Microgrid College of Electrical Engineering&New EnergyChina Three Gorges UniversityYichangHubeiChina College of Materials and Chemical Engineering China Three Gorges UniversityYichangHubeiChina College of Chemical and Biological Engineering Zhejiang UniversityHangzhouChina

Fe-based Prussian blue(Fe-PB)cathode material shows great application potential in sodium(Na)-ion batteries due to its high theoretical capacity,long cycle life,low cost,and simple preparation ***,the crystalline water and vacancies of Fe-PB lattice,the low electrical conductivity,and the dissolution of metal ions lead to limited capacity and poor cycling *** this work,a perylene tetracarboxylic dianhydride amine(PTCDA)coating layer is successfully fabricated on the surface of Fe-PB by a liquid-phase *** aminated PTCDA(PTCA)coating not only increases the specific surface area and electronic conductivity but also effectively reduces the crystalline water and vacancies,which avoids the erosion of Fe-PB by ***,the PTCA layer reduces the charge transfer resistance,enhances the Na-ion diffusion coefficient,and improves the structure *** PTCA-coated Fe-PB exhibits superior Na storage performance with a first discharge capacity of 145.2 mAh g^(−1) at 100 mA g^(−1).Long cycling tests exhibit minimal capacity decay of 0.027%per cycle over 1000 cycles at 1 A g^(−1).Therefore,this PTCA coating strategy has shown promising competence in enhancing the electrochemical performance of Fe-PB,which can potentially serve as a universal electrode coating strategy for Na-ion batteries.

关键词： cathode material coating Fe-based Prussian blue Na-ion batteries perylene tetracarboxylic dianhydride amine

Flexible pressure sensors with ultrahigh stress tolerance enabled by periodic microslits

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Microsystems & Nanoengineering 2024年第1期10卷 301-311页

作者： Song Wang Chenying Wang Yifan Zhao Yujing Zhang Yaxin Zhang Xiangyue Xu Qijing lin Kai yao Yuheng Wang Feng Han Yu Sun Zhuangde Jiang State Key Laboratory for Manufacturing Systems Engineering International Joint Laboratory for Micro/Nano Manufacturing and Measurement TechnologiesSchool of Mechanical EngineeringXi’an Jiaotong UniversityXi’anChina State Key Laboratory for Manufacturing Systems Engineering International Joint Laboratory for Micro/Nano Manufacturing and Measurement TechnologiesSchool of Instrument Science and TechnologyXi’an Jiaotong UniversityXi’anChina The faculty of Electrical Engineering and Computer Science Ningbo UniversityNingboChina Department of Mechanical and Industrial Engineering University of TorontoTorontoCanada

Stress tolerance plays a vital role in ensuring the effectiveness of piezoresistive sensing films used in flexible pressure ***,existing methods for enhancing stress tolerance employ dome-shaped,wrinkle-shaped,and pyramidal-shaped microstructures in intricate molding and demolding processes,which introduce significant fabrication challenges and limit the sensing *** address these shortcomings,this paper presents periodic microslits in a sensing film made of multiwalled carbon nanotubes and polydimethylsiloxane to realize ultrahigh stress tolerance with a theoretical maximum of 2.477 MPa and a sensitivity of 18.092 kPa−*** periodic microslits permit extensive deformation under high pressure(e.g.,400 kPa)to widen the detection ***,the periodic microslits also enhance the sensitivity based on simultaneously exhibiting multiple synapses within the sensing interface and between the periodic sensing *** proposed solution is verified by experiments using sensors based on the microslit strategy for wind direction detection,robot movement sensing,and human health *** these experiments,vehicle load detection is achieved for ultrahigh pressure sensing under an ultrahigh pressure of over 400 kPa and a ratio of the contact area to the total area of 32.74%.The results indicate that the proposed microslit strategy can achieve ultrahigh stress tolerance while simplifying the fabrication complexity of preparing microstructure sensing films.

关键词： robot shaped stress

Shared diagnostic genes and potential mechanisms between COVID-19 and sepsis revealed by bioinformatics analysis

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World Journal of Emergency Medicine 2024年第5期15卷 410-412页

作者： Weifei Wang Zhong Chen Wenyuan Zhang Yuan lin Yaqi Sun Qi yao Jian Lu Jungang Zheng Department of Gerontology the First Affi liated Hospital of Ningbo UniversityNingbo 315010China Department of Anesthesiology Beilun District People’s HospitalNingbo 315800China Meigu County People’s Hospital Meigu 616450China National Clinical Research Center for Child Health Children’s HospitalZhejiang University School of MedicineHangzhou 310052China Department of Anesthesiology the First Affi liated Hospital of Ningbo UniversityNingbo 315010China Department of Ultrasound in Medicine the First Affi liated Hospital of Ningbo UniversityNingbo 315010China The First People’s Hospital of Yuexi County Yuexi 616650China Zhejiang University School of Medicine Hangzhou 310058China

The coronavirus disease 2019(COVID-19)pandemic,triggered by the novel coronavirus severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),has ravaged the globe,resulting in a staggering loss of life and wreaking havoc on the worldwide economy.[1,2]Sepsis is a cascade of abnormal responses provoked by infection,leading to a critical deterioration in organ function that poses a life-threatening risk.[3]However,it is unclear from published reports whether COVID-19 and sepsis are commonly aff ected by molecular ***,we performed a bioinformatics analysis to uncover shared diagnostic genes and potential mechanisms between COVID-19 and sepsis.

关键词： sepsis acute respiratory

Neuroinflammation attenuation effects by celastrol and PDIA3 in the amygdala, hippocampus and dorsal raphe nucleus of obese mice

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Journal of Pharmaceutical Analysis 2024年第2期14卷 287-290页

作者： Chunyan Zhu Xuemin yao Dandan Liu Guoxin Zhang Yongping Zhu Hongyu Chi Shuangpan Zhang Jun Yang Ying Liu Jigang Wang Na lin Institute of Chinese Materia Medica China Academy of Chinese Medical SciencesBeijing100700China

Nowadays,roughly 603.7 million people are bothered by obesity[1].More seriously,obesity brings inflammation to the peripheral and central nervous system,which compromises the comorbidity of obesity,major depression[2],and cognitive deficits[3].Drug competent in the comorbidity is still *** 2015,Liu et al.[4]reported celastrol(CEL)as a powerful anti-obesity *** our previous study.

关键词： inflammation obesity obese

Research on the Digital Transformation of English Teaching in Vocational Education

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Journal of Contemporary Educational Research 2024年第5期8卷 182-186页

作者： Xiaochao yao lin Shi Hainan Vocational University of Science and Technology Haikou 571126Hainan ProvinceChina

With the advancement of technology,exploring the impact of digital transformation on vocational education English teaching has become *** study aims to investigate the effectiveness of digital transformation in English teaching in vocational education in China by exploring students’and teachers’attitudes,views,and experiences on the use of digital technology in English *** study employed a mixed method of qualitative and quantitative *** research results indicate that digital transformation has had a positive impact on vocational education English teaching,as it enhances the teaching process,promotes communication and collaboration,and increases students’enthusiasm and ***,implementing digital transformation in vocational education English teaching also poses challenges,including a lack of resources,infrastructure,and *** study provides an in-depth understanding of the advantages and challenges of digital transformation in vocational education English teaching and proposes strategies to improve the implementation of digital technology in this context.

关键词： Digital transformation Vocational education English teaching Mixed methods

Plant cuticles repress organ initiation and development during skotomorphogenesis in Arabidopsis

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Plant Communications 2024年第6期5卷 100-116页

作者： Yuru Ma Wenwen Chang Yongpeng Li Jiahui Xu Yongli Song Xinmiao yao Lei Wang Yu Sun lin Guo Hao Zhang Xigang Liu Ministry of Education Key Laboratory of Molecular and Cellular Biology College of Life SciencesHebei Normal UniversityShijiazhuangHebei 050024China Hebei Research Center of the Basic Discipline of Cell Biology College of Life SciencesHebei Normal UniversityShijiazhuangHebei 050024China Hebei Collaboration Innovation Center for Cell Signaling and Environmental Adaptation College of Life SciencesHebei Normal UniversityShijiazhuangHebei 050024China Hebei Key Laboratory of Molecular and Cellular Biology College of Life SciencesHebei Normal UniversityShijiazhuangHebei 050024China State Key Laboratory of Plant Cell and Chromosome Engineering Institute of Genetics and Developmental BiologyChinese Academy of SciencesShijiazhuangHebei 050021China

After germination in the dark,plants produce a shoot apical hook and closed cotyledons to protect the quiescent shoot apical meristem(SAM),which is critical for seedling survival during *** factors that coordinate these processes,particularly SAM repression,remain *** cuticles,multilayered structures of lipid components on the outermost surface of the aerial epidermis of all land plants,provide protection against desiccation and external environmental *** and how cuticles regulate plant development are still ***,we demonstrate that mutants of BODYGUARD1(BDG1)and long-chain acyl-CoA synthetase2(LACS2),key genes involved in cutin biosynthesis,produce a short hypocotyl with an opened apical hook and cotyledons in which the SAM is activated during *** signaling represses expression of BDG1 and LACS2,as well as cutin *** analysis revealed that cuticles are critical for skotomorphogenesis,particularly for the development and function of *** and molecular analyses showed that decreased HOOKLESS1 expression results in apical hook opening in the *** hypoxia-induced expression of LITTLE ZIPPER2 at the SAM promotes organ initiation in the mutants,the de-repressed expression of cell-cycle genes and the cytokinin response induce the growth of true *** results reveal previously unrecognized developmental functions of the plant cuticle during skotomorphogenesis and demonstrate a mechanism by which light initiates photomorphogenesis through dynamic regulation of cuticle synthesis to induce coordinated and systemic changes in organ development and growth during the skotomorphogenesis-to-photomorphogenesis transition.

关键词： plant cuticles SAM quiescence organ initiation skotomorphogenesis photomorphogenesis