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Molecule-based vertical transistor via intermolecular charge transport throughπ-πstacking

Nano Research 2024年第5期17卷 4573-4581页

作者： Cheng Liu Cheng Fu Lingyu Tang Jianghua Wu Zhangyan Mu Yamei Sun Yanghang Pan Bailin Tian Kai Bao Jing Ma qiyuan he Mengning Ding Key Laboratory of Mesoscopic Chemistry School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China National Laboratory of Solid State Microstructures Jiangsu Key Laboratory of Artificial Functional MaterialsCollege of Engineering and Applied SciencesCollaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210093China Department of Materials Science and Engineering City University of Hong KongHong Kong 999077China

Theπ-πstacking is a well-recognized intermolecular interaction that is responsible for the construction of electron hopping channels in numerous conducting frameworks/***,the exact role ofπ-to-πchannels within typical single crystalline organic semiconductors remains unclear as the orientations of these molecules are diverse,and their control usually requires additional side chain groups that misrepresent the intrinsic properties of the original semiconducting ***,the construction of conduction channels with intrinsicπ-πstacking in the molecule-based device is crucial for the utilization of their unique transport characteristics and understanding of the transport *** this end,we present a molecular intercalation strategy that integrates two-dimensional layered materials with functional organic semiconductor molecules for functional molecule-based *** organic semiconductor molecules can be effectively intercalated into the van der Waals gaps of semi-metallic TaS_(2) withπ-πstacking configuration and controlled intercalant *** results show that the vertical charge transport in the stacking direction shows a tunneling-dominated mechanism that strongly depends on the molecular ***,we demonstrated a new type of molecule-based vertical transistor in which TaS_(2) andπ-πstacked organic molecules function as the electrical contact and the active channel,***/off ratios as high as 447 are achieved under electrostatic modulation in ionic liquid,comparable to the current state-of-the-art molecular *** study provides an ideal platform for probing intrinsic charge transport acrossπ-πstacked conjugated molecules and also a feasible approach for the construction of high-performance molecule-based electronic devices.

关键词： π-πstacking electrochemical intercalation organic semiconductor electrical transport tunneling field effect transistor

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从吴冠中、毕加索的经历看文化背景对画家的人生和艺术之影响

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文化创新比较研究 2024年第9期8卷 1-4页

作者：何玘元何昕天津师范大学天津300387 湖南科技学院湖南永州425199

文化背景对艺术家的成长必然产生影响。该文将从不同文化背景入手,对比毕加索和吴冠中的家庭背景、成名之路、异性对艺术创作的影响、面对死神的态度4个方面来探讨中西方文化各自对吴冠中与毕加索的影响。通过研究发现:从出生开始,毕加... 详细信息

文化背景对艺术家的成长必然产生影响。该文将从不同文化背景入手,对比毕加索和吴冠中的家庭背景、成名之路、异性对艺术创作的影响、面对死神的态度4个方面来探讨中西方文化各自对吴冠中与毕加索的影响。通过研究发现:从出生开始,毕加索与吴冠中的艺术人生之路的每一步无不彰显着本国文化的烙印。人类在漫长的历史长河里,形成了不同历史风情、不同地域特色的生活习俗、生存方式、文学艺术、行为规范、思维方式和价值观念……人类创造了文化,却又被文化所塑造。吴冠中与毕加索的经历生动地诠释了文化背景对艺术家的深刻影响。

关键词：吴冠中毕加索文化背景人生艺术伦理

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Two-dimensional material-based virus detection

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Science China Chemistry 2022年第3期65卷 497-513页

作者： Wenbin Wang Wei Zhai Ye Chen qiyuan he Hua Zhang Department of Materials Science and Engineering City University of Hong KongHong KongChina Department of Chemistry City University of Hong KongHong KongChina Department of Chemistry The Chinese University of Hong KongShatinHong KongChina Hong Kong Branch of National Precious Metals Material Engineering Research Center(NPMM) City University of Hong KongHong KongChina Shenzhen Research Institute City University of Hong KongShenzhen 518057China

Cost-effective, rapid, and accurate virus detection technologies play key roles in reducing viral transmission. Prompt and accurate virus detection enables timely treatment and effective quarantine of virus carrier, and therefore effectively reduces the possibility of large-scale spread. However, conventional virus detection techniques often suffer from slow response, high cost or sophisticated procedures. Recently, two-dimensional(2D) materials have been used as promising sensing platforms for the highperformance detection of a variety of chemical and biological substances. The unique properties of 2D materials, such as large specific area, active surface interaction with biomolecules and facile surface functionalization, provide advantages in developing novel virus detection technologies with fast response and high sensitivity. Furthermore, 2D materials possess versatile and tunable electronic, electrochemical and optical properties, making them ideal platforms to demonstrate conceptual sensing techniques and explore complex sensing mechanisms in next-generation biosensors. In this review, we first briefly summarize the virus detection techniques with an emphasis on the current efforts in fighting again COVID-19. Then, we introduce the preparation methods and properties of 2D materials utilized in biosensors, including graphene, transition metal dichalcogenides(TMDs) and other 2D materials. Furthermore, we discuss the working principles of various virus detection technologies based on emerging 2D materials, such as field-effect transistor-based virus detection, electrochemical virus detection, optical virus detection and other virus detection techniques. Then, we elaborate on the essential works in 2D material-based high-performance virus detection. Finally, our perspective on the challenges and future research direction in this field is discussed.

关键词： two-dimensional materials virus detection field-effect transistor biosensor COVID-19

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双网络水凝胶在医药领域的应用及研究进展

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组织工程与重建外科 2024年第1期20卷 135-141页

作者：张璨琁冯雨金贺启元毛帅西安交通大学陕西省西安市710049

双网络(DN)水凝胶是一种具有三维网络结构的高分子生物黏附材料,采用刚性网络与柔性网络互穿的形式对传统单网络(SN)水凝胶进行了强化,具备较高的机械强度与韧性,被广泛应用于医药领域。近年来,出现了多种新型DN水凝胶,为传统DN水凝胶... 详细信息

双网络(DN)水凝胶是一种具有三维网络结构的高分子生物黏附材料,采用刚性网络与柔性网络互穿的形式对传统单网络(SN)水凝胶进行了强化,具备较高的机械强度与韧性,被广泛应用于医药领域。近年来,出现了多种新型DN水凝胶,为传统DN水凝胶赋予了快速凝胶化、强组织附着力等更多优势,进一步拓宽了DN水凝胶的应用范围。现将近年来DN水凝胶在医药领域的应用及发展现状进行综述。

关键词：双网络水凝胶医药卫生临床应用

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High-throughput screening system of citrus bacterial cankerassociated transcription factors and its application to the regulation of citrus canker resistance

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Journal of Integrative Agriculture 2024年第1期23卷 155-165页

作者： Jia Fu Jie Fan Chenxi Zhang Yongyao Fu Baohang Xian qiyuan Yu Xin Huang Wen Yang Shanchun Chen Yongrui he Qiang Li Integrative Science Center of Germplasm Creation in Western China(Chongqing)Science City Citrus Research InstituteSouthwest UniversityChongqing 400712China School of Advanced Agriculture and Bioengineering Yangtze Normal UniversityChongqing 408100China National Citrus Engineering Research Center Chongqing 400712China

One of the main diseases that adversely impacts the global citrus industry is citrus bacterial canker(CBC),caused by the bacteria Xanthomonas citri ***(Xcc).Response to CBC is a complex process,with both proteinDNA as well as protein–protein interactions for the regulatory *** detect such interactions in CBC resistant regulation,a citrus high-throughput screening system with 203 CBC-inducible transcription factors(TFs),were *** the upstream regulators of target by yeast-one hybrid(Y1H)methods was also performed.A regulatory module of CBC resistance was identified based on this *** TF(CsDOF5.8)was explored due to its interactions with the 1-kb promoter fragment of CsPrx25,a resistant gene of CBC involved in reactive oxygen species(ROS)homeostasis *** mobility shift assay(EMSA),dual-LUC assays,as well as transient overexpression of CsDOF5.8,further validated the interactions and transcriptional *** CsDOF5.8–CsPrx25 promoter interaction revealed a complex pathway that governs the regulation of CBC resistance via *** high-throughput Y1H/Y2H screening system could be an efficient tool for studying regulatory pathways or network of CBC resistance *** addition,it could highlight the potential of these candidate genes as targets for efforts to breed CBC-resistant citrus varieties.

关键词： citrus bacterial canker(CBC) high-throughput screening system transcription factor(TF) yeast-one hybrid(Y1H) CsPrx25

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Few-layer WSe2 lateral homo-and hetero-junctions with superior optoelectronic performance by laser manufacturing

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Science China(Technological Sciences) 2020年第8期63卷 1531-1537页

作者： LI Yang YANG Jian ZHAN ZhaoYao WU Jumiati LI Hai ZheN Liang he qiyuan XU ChengYan School of Materials Science and Engineering MOE Key Laboratory of Micro-Systems and Micro-Structures ManufacturingHarbin Institute of TechnologyHarbin 150001China Center for Programmable Materials School of Materials Science and EngineeringNanyang Technological UniversitySingapore 639798Singapore School of Mechanical and Aerospace Engineering Nanyang Technological UniversitySingapore 639798Singapore Key Laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Nanjing Tech University(NanjingTech)Nanjing 211816China Department of Materials Science and Engineering City University of Hong KongHong Kong 999077China

Lateral hetero-junctions are considered as potential candidate for building blocks in modern electronics and optoelectronics,however,the construction of which remains a *** this work,by using a laser-assisted manufacture technique,WSe2/WO3-x hetero-junction and monolayer/trilayer WSe2 homo-junction with Schottky diode like behavior are fabricated,both of which present competitive performance for photodetection and power generation in a wide range of wavelengths from ultraviolet to infrared,with maximum photoresponsivity of 10 A/W,external quantum efficiency of 14%,and power conversion efficiency of 1.3%.Combined with Kelvin probe microscopy and electrical transport measurements,it is demonstrated that the barrier-induced built-in electric field at WSe2/WO3-x interface,and the energy band discontinuities at the monolayer/trilayer WSe2 interface facilitate the separation of photo-generated electron-hole *** work provides a solid step towards the controllable construction of lateral junctions by laser-assisted manufacture for exploiting van der Waals materials-based novel electronic and optoelectronic applications.

关键词： laser manufacture lateral heterostructure optoelectronic performance WSe2

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Fabrication and applications of van der Waals heterostructures

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International Journal of Extreme Manufacturing 2023年第2期5卷 149-169页

作者： Junlei Qi Zongxiao Wu Wenbin Wang Kai Bao Lingzhi Wang Jingkun Wu Chengxuan Ke Yue Xu qiyuan he Department of Materials Science and Engineering City University of Hong Kong83 Tat Chee AvenueKowloonHong KongPeople’s Republic of China

Van der Waals heterostructures(vdWHs) are showing considerable potential in both fundamental exploration and practical applications. Built upon the synthetic successes of(two-dimensional) 2D materials, several synthetic strategies of vdWHs have been developed,allowing the convenient fabrication of diverse vdWHs with decent controllability, quality, and scalability. This review first summarizes the current state of the art in synthetic strategies of vdWHs, including physical combination, deposition, solvothermal synthesis, and synchronous evolution. Then three major applications and their representative vdWH devices have been reviewed, including electronics(tunneling field effect transistors and 2D contact),optoelectronics(photodetector), and energy conversion(electrocatalysts and metal ion batteries), to unveil the potentials of vdWHs in practical applications and provide the general design principles of functional vdWHs for different applications. Besides, moiré superlattices based on vdWHs are discussed to showcase the importance of vdWHs as a platform for novel condensed matter physics. Finally, the crucial challenges towards ideal vdWHs with high performance are discussed, and the outlook for future development is presented. By the systematical integration of synthetic strategies and applications, we hope this review can further light up the rational designs of vdWHs for emerging applications.

关键词： 2D materials van der Waals heterostructures gas-phase deposition solvothermal synthesis synchronous evolution

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Phase engineering of metal-organic frameworks

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Aggregate 2022年第1期3卷 93-107页

作者： Chen Ma Long Zheng Gang Wang Jun Guo Liuxiao Li qiyuan he Ye Chen Hua Zhang Department of Chemistry The Chinese University of Hong KongShatinHong KongChina Department of Chemistry City University of Hong KongKowloonHong KongChina Department of Materials Science and Engineering City University of Hong KongKowloonHong KongChina Hong Kong Branch of National Precious Metals Material Engineering Research Center(NPMM)City University of Hong KongKowloonHong KongChina Shenzhen Research Institute City University of Hong KongShenzhenChina

As an important category of porous crystalline materials,metal-organic frameworks(MOFs)have attracted extensive research interests owing to their unique structural features such as tunable pore structure and enormous surface *** controlling the size,dimensionality,and composition of MOFs,further exploring the crystal-phase-dependent physicochemical properties is essential to improve their performances in various ***,great progress has been achieved in the phase engineering of nanomaterials(PEN),which provides an effective strategy to tune the functional properties of nanomaterials by modulating the arrangement of *** this review,we adopt“phase”instead of“topology”to describe the crystal structure of MOFs and summarize the recent advances in phase engineering of *** two main strategies used to control the phase of MOFs,that is,phasecontrolled synthesis and phase transformation of MOFs,will be *** roles of various reaction parameters in controlling the crystal phase of MOFs are ***,the phase dependence of MOFs in various applications including luminescence,adsorption,and catalysis are ***,some personal perspectives about the challenges and opportunities in this emerging field are presented.

关键词： crystal phase metal-organic frameworks phase engineering phase transformation phase-controlled synthesis

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Themed Issue on Two-dimensional(2D)Materials

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Chemical Research in Chinese Universities 2020年第4期36卷 I0001-I0002页

作者： HUANG Xiao CAO Xiehong he qiyuan ZENG Zhiyuan ZHANG Hua Nanjing Tech University Zhejiang University of Technology City University of Hong Kong

The research in two-dimensional(2D)materials has flourished since the pioneer work on graphene in *** unprecedented properties have been discovered in 2D materials,enabling their high performances in(opto-)electronics,catalysis and *** the family of 2D materials continues to grow and more 2D members are being identified,it is timely and important to summarize the recent progress of 2D materials,and look forward to their further advances and developments not only in fundamental studies but also in various applications.

关键词： dimensional catalysis advances

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Inhibition of SLC26A4 regulated by electroacupuncture suppresses the progression of myocardial ischemia-reperfusion injury

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BIOCELL 2024年第4期48卷 665-675页

作者： FEI KONG qiyuan TIAN BINGLIN KUANG LILI SHANG XIAOXIAO ZHANG DONGYANG LI YING KONG Department of Endocrinology Heilongjiang University of Chinese MedicineHarbin150040China Department of Cardiology Heilongjiang University of Chinese MedicineHarbin150040China College of Clinical Medicine Heilongjiang University of Chinese MedicineHarbin150040China Department of Nephrology Beijing Hospital of Integrated Traditional Chinese and Western MedicineBeijing100039China College of Acupuncture and Massage Heilongjiang University of Chinese MedicineHarbin150040China Department of Acupuncture Heilongjiang University of Chinese MedicineHarbin150040China

Introduction:Myocardial ischemia-reperfusion(IR)injury has received widespread attention due to its damaging ***(EA)pretreatment has preventive effects on myocardial IR ***26A4 is a Na+independent anion reverse transporter and has not been reported in myocardial IR ***:Toﬁnd potential genes that may be regulated by EA and explore the role of this gene in myocardial IR ***:RNA sequencing and bioinformatics analysis were performed to obtain the differentially expressed genes in the myocardial tissue of IR rats with EA *** infarction size was detected by TTC *** CK,creatinine kinase-myocardial band,Cardiac troponin I,and lactate dehydrogenase levels were determined by *** effect of SLC26A4 on cardiomyocyte apoptosis was explored by TUNEL staining and western *** effects of SLC26A4 on inﬂammation were determined by he staining,ELISA,and real-time *** effect of SLC26A4 on the NF-κB pathway was determined by western ***:SLC26A4 was up-regulated in IR rats but downregulated in IR rats with EA *** with IR rats,those with SLC26A4 knockdown exhibited improved cardiac function according to decreased myocardial infarction size,reduced serum LDH/CK/CK-MB/cTnI levels,and elevated left ventricular ejection fraction and fractional ***26A4 silencing inhibited myocardial inﬂammation,cell apoptosis,phosphorylation,and nuclear translocation of NF-κB ***:SLC26A4 exhibited promoting effects on myocardial IR injury,while the SLC26A4 knockdown had an inhibitory effect on the NF-κB *** results further unveil the role of SLC26A4 in IR injury.

关键词： Myocardial ischemia Reperfusion SLC26A4 NF-κB pathway

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