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Polaron interfacial entropy as a route to high thermoelectric performance in DAE-doped PEDOT:PSS films

National Science Review 2024年第3期11卷 259-270页

作者： Jiajia zhang Caichao Ye Gen{1. Wei liang Guo Yuhang Cai Zhi li xinzhi Wu Fangyi Sun Qikai li Yupeng {1. Huan li Yuchen li Shuaihua {1. Wei Xu Xuefeng Guo Wenqing zhang Weishu liu Department of Materials Science and Engineering Southern University of Science and Technology Academy for Advanced Interdisciplinary Studies and Guangdong Provincial Key Laboratory of Computational Science and Material Design Southern University of Science and Technology Department of Mechanical and Energy Engineering Southern University of Science and Technology beijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences College of Chemistry and Molecular Engineering National Biomedical Imaging Centre Peking University Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices Southern University of Science and Technology

Enhancing the thermoelectric transport properties of conductive polymer materials has been a long-term challenge, in spite of the success seen with molecular doping strategies. However, the strong coupling between the thermopower and the electrical conductivity limits thermoelectric performance. Here, we use polaron interfacial occupied entropy engineering to break through this intercoupling for a PEDOT:PSS(poly（3,4-ethylenedioxythiophene）-poly（4-styrenesulfonate）) thin film by using photochromic diarylethene（DAE） dopants coupled with UV-light modulation. With a 1.-fold enhancement of the thermopower from 1..5 μV K-1.o 1.5.4 μV K-1.nd almost unchanged electrical conductivity, the DAE-doped PEDOT:PSS thin film achieved an extremely high power factor of 521.28 μW m-1.-2from an original value of 6.78 μW m-1.-2. The thermopower was positively correlated with the UV-light intensity but decreased with increasing temperature, indicating resonant coupling between the planar closed DAE molecule and PEDOT. Both the experiments and theoretical calculations consistently confirmed the formation of an interface state due to this resonant coupling. Interfacial entropy engineering of polarons could play a critical role in enhancing the thermoelectric performance of the organic film.

关键词： thermoelectric PEDOT: PSS interfacial occupied entropy resonant coupling UV-light modulation

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Elliptical vibration chiseling:a novel process for texturing ultra-high-aspect-ratio microstructures on the metallic surface

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International Journal of Extreme Manufacturing 2024年第2期6卷 449-467页

作者： Zhiwei li Jianfu zhang Z{1.peng Zheng Pingfa Feng Dingwen Yu Jianjian wang State Key Laboratory of Tribology in Advanced Equipment Department of Mechanical EngineeringTsinghua UniversityBeijing 100084People’s Republic of China beijing Key Laboratory of Precision/Ultra-precision Manufacturing Equipments and Control Department of Mechanical EngineeringTsinghua UniversityBeijing 100084People’s Republic of China Division of Advanced Manufacturing Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055People’s Republic of China

High-aspect-ratio metallic surface microstructures are increasingly demanded in breakthrough applications,such as high-performance heat transfer enhancement and surface plasmon ***,the fast and cost-effective fabrication of high-aspect-ratio microstructures on metallic surfaces remains challenging for existing *** study proposes a novel cutting-based process,namely elliptical vibration chiseling(EV-chiseling),for the high-efficiency texturing of surface microstructures with an ultrahigh aspect *** conventional cutting,EV-chiseling superimposes a microscale EV on a backward-moving *** tool chisels into the material in each vibration cycle to generate an upright chip with a high aspect ratio through material *** to the tool’s backward movement,the chip is left on the material surface to form a microstructure rather than falling *** one microstructure is generated in one vibration cycle,the process can be highly efficient using ultrafast(>1.kHz)tool vibration.A finite element analysis model is established to explore the process mechanics of ***,a mechanistic model of the microstructured surface generation is developed to describe the microstructures’aspect ratio dependency on the process ***,surface texturing tests are performed on copper to verify the efficacy of *** micro ribs with a spacing of 1.1.μm and an aspect ratio of 2–5 have been successfully textured on *** with the conventional EV-cutting that uses a forward-moving tool,EV-chiseling can improve the aspect ratio of textured microstructure by up to 40 *** experimental results also verify the accuracy of the developed surface generation model of ***,the effects of elliptical trajectory,depth of cut,tool shape,and tool edge radius on the surface generation of micro ribs have been discussed.

关键词： metallic microstructure high aspect ratio backward-moving cutting vibration cutting chiseling material deformation

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Fanlian Huazhuo Formula alleviates high-fat diet-induced nonalcoholic fatty liver disease by modulating autophagy and lipid synthesis signaling pathway

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World Journal of Gastroenterology 2024年第30期30卷 3584-3608页

作者： Meng-Yuan Niu Geng-Ting Dong Yi li Qing Luo liu cao Xi-Min {1. Qi-Wen {1. Yi-Ting {1. Zhe zhang Xi-Wen Zhong Wei-Bo Dai Le-Yu li Pharmacology Laboratory Zhongshan Hospital of Traditional Chinese Medicine Affiliated to Guangzhou University of Traditional Chinese MedicineZhongshan 528400Guangdong ProvinceChina Department of Endocrinology Zhongshan Hospital of Traditional Chinese Medicine Affiliated to Guangzhou University of Traditional Chinese MedicineZhongshan 528400Guangdong ProvinceChina

BACKGROUND Fanlian Huazhuo Formula(FLHZF)has the functions of invigorating spleen and resolving phlegm,clearing heat and purging *** has been identified to have therapeutic effects on type 2 diabetes mellitus(T2DM)in clinical ***-alcoholic fatty liver disease(NAFLD)is frequently diagnosed in patients with ***,the therapeutic potential of FLHZF on NAFLD and the underlying mechanisms need further *** To elucidate the effects of FLHZF on NAFLD and explore the underlying hepatoprotective mechanisms in vivo and in *** HepG2 cells were treated with free fatty acid for 24 hours to induce lipid accumulation cell ***,experiments were conducted with the different concentrations of freeze-dried powder of FLHZF for 24 hours.C57BL/6 mice were fed a high-fat diet for 8-week to establish a mouse model of NAFLD,and then treated with the different concentrations of FLHZF for 1. *** FLHZF had therapeutic potential against lipid accumulation and abnormal changes in biochemical indicators in vivo and in *** experiments verified that FLHZF alleviated abnormal lipid metabolism might by reducing oxidative stress,regulating the AMPKα/SREBP-1. signaling pathway,activating autophagy,and inhibiting hepatocyte *** FLHZF alleviates abnormal lipid metabolism in NAFLD models by regulating reactive oxygen species,autophagy,apoptosis,and lipid synthesis signaling pathways,indicating its potential for clinical application in NAFLD.

关键词： Fanlian Huazhuo Formula Nonalcoholic fatty liver disease Autophagy Apoptosis AMPKα/SREBP-1. signal pathway Oxidative stress

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Large-scale interplant exchange of macromolecules between soybean and dodder under nutrient stresses

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Plant Diversity 2024年第1期46卷 116-125页

作者： Jingxiong zhang Shalan li Wen{1.g li Zerui Feng Shuhan zhang Xijie Zheng Yu{1.g Xu Guojing Shen Man Zhao Guoyan cao Xuna Wu Jianqiang Wu Department of Economic Plants and Biotechnology Yunnan Key Laboratory for Wild Plant ResourcesKunming Institute of BotanyChinese Academy of SciencesKunming 650201China CAS center for Excellence in Biotic Interactions University of Chinese Academy of SciencesBeijing 100049China State Key Laboratory of Conservation and Utilization of Bio-Resources in Yunnan and center for life Science School of Life SciencesYunnan UniversityKunming 650500China

Parasitic plants and their hosts communicate through haustorial *** deficiency is a common stress for plants,yet little is known about whether and how host plants and parasites communicate during adaptation to such nutrient *** this study,we used transcriptomics and proteomics to analyze how soybean(Glycine max)and its parasitizing dodder(Cuscuta australis)respond to nitrate and phosphate deficiency(-N and-P).After-N and-P treatment,the soybean and dodder plants exhibited substantial changes of transcriptome and proteome,although soybean plants showed very few transcriptional responses to-P and dodder did not show any transcriptional changes to either-N ***,large-scale interplant transport of mRNAs and proteins was *** the mobile mRNAs only comprised at most 0.2%of the transcriptomes,the foreign mobile proteins could reach 6.8%of the total proteins,suggesting that proteins may be the major forms of interplant ***,the interplant mobility of macromolecules was specifically affected by the nutrient regimes and the transport of these macromolecules was very likely independently *** study provides new insight into the communication between host plants and parasites under stress conditions.

关键词： Cuscuta Mobile molecules Nutrient deficiency Host plant-parasitic plant interaction Interplant transport Systemic signaling

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Multidimensional hollow SiO_(2)/C nanofibers modified by magnetic nanocrystals for electromagnetic energy conversion and lithium battery storage

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Nano Research 2024年第8期17卷 7301-7314页

作者： Chen Han Qi Zheng Juncheng Jin Jiajia zhang Wen-Qiang {1. Kun Xiang Min zhang Mao-Sheng {1. Anhui Provincial Laboratory of Biomimetic Sensor and Detecting Technology College of Materials and Chemical EngineeringWest Anhui UniversityLu’an 237012China school of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Department of Physics Beijing Technology and Business UniversityBeijing 100048China

Multifunctional materials are powerful tools to support the advancement of energy conversion *** with prominent electromagnetic and electrochemical properties can realize the conversion of electromagnetic energy and solve the subsequent storage ***,an electrospinning-thermal reduction method is employed to construct ultrafine nickel nanoparticle modified porous SiO_(2)/C(Ni-SiO_(2)/C)hollow nanofibers as promising materials for applications in both electromagnetic wave absorption(EMA)and lithium-ion ***,when used as an EMA material,the reflection loss(RL)of Ni-SiO_(2)/C can reach−47.8 dB at 1..8 GHz with a matching thickness of 2.2 *** excellent microwave absorption performance can be attributed to the enhanced conduction loss,polarization relaxation,synergistic magnetic loss,and preferred impedance matching,which result from multi-component magnetic/dielectric synergy and the unique interconnected multidimensional hollow ***,the electronic conductivity and electrochemical activity of the samples are significantly enhanced due to the uniform distribution of ultrafine Ni nanoparticles in the amorphous SiO_(2)/C ***,the hierarchical hollow porous structure provides sufficient free space for volume change during lithiation/delithiation ***,the Ni-SiO_(2)/C nanocomposite exhibits a high reversible capacity of 91..6 mAh·g^(−1.at 0.1.A·g^(−1..At a high current density of 2 A·g^(−1.,a capacity of 563.9 mAh·g^(−1.can be maintained after 300 *** energy conversion-storage device is designed to store waste electromagnetic energy in the form of useful electrical *** work inspires the development of high-performance bifunctional materials.

关键词： Ni-SiO_(2)/C nanofiber electromagnetic absorption lithium-ion storage electrospinning multidimensional structure

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Photonics-assisted joint radar jamming and secure communication in the millimeter-wave band based on CE-LFM-OFDM

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Chinese Optics Letters 2024年第6期22卷 205-211页

作者： Dongju Du Yanyi wang Yingxiong Song Nan Ye Zhengxuan li Qianwu {1. Junjie {1. Jian Chen Bingyao cao Jianjun Yu Key Laboratory of Specialty Fiber Optics and Optical Access Networks Joint International Research Laboratory of Specialty Fiber Optics and Advanced CommunicationShanghai UniversityShanghai 200444China Key Laboratory for Information Science of Electromagnetic Waves(MoE) Fudan UniversityShanghai 200433China

This paper reports a photonics-assisted millimeter-wave (mm-wave) joint radar jamming and secure communication system constructed through a photonic upconversion technique. In the experiments, a 30 GHz constant envelope linear frequency-modulated orthogonal frequency division modulation(CE-LFM-OFDM) signal with an instantaneous bandwidth of 1.GHz is synthesized by encoding 1.GBaud encrypted 1.-quadrature amplitude modulation(1.-QAM) OFDM signal. The velocity deception jamming is achieved with a spurious suppression ratio over 30 dB. Furthermore, we efficiently execute range deception jamming with a time shift of 1. ns. Simultaneously, the encrypted 1.-QAM OFDM signal is successfully transmitted over a 1.2 m wireless link, with a data rate of 4 Gbit/s.

关键词： millimeter-wave radar jamming secure wireless communication

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Regulatable interfacial adhesion between stamp and ink for transfer printing

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Interdisciplinary Materials 2024年第1期3卷 29-53页

作者： Yiheng li Feilong zhang Shutao {1. CAS Key Laboratory of Bio‐inspired Materials and Interfacial Science Technical Institute of Physicsand ChemistryChinese Academy of SciencesBeijingChina school of Future Technology University of Chinese Academy of ciencesBeijingChina

As an emerging processing technology,transfer printing enables the assembly of functional material arrays(called inks)on various substrates with micro/nanoscale resolution and has been widely used in the fabrication of flexible electronics and display *** critical steps in transfer printing are the ink pick-up and printing processes governed by the switching of adhesion states at the stamp/ink *** this review,we first introduce the history of transfer printing in terms of the transfer methods,transferred materials,and ***,the fundamental characteristics of the transfer printing system and typical strategies for regulating the stamp/ink interfacial adhesion strength are summarized and ***,future challenges and opportunities for developing the novel stamps,inks,and substrates with intelligent adhesion capability are discussed,aiming to inspire the innovation in the design of transfer printing systems.

关键词： interfacial adhesion switchable adhesion transfer printing

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Variation characteristics of acid rain in Zhuzhou,Central china over the period 201.-2020

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Journal of Environmental Sciences 2024年第4期138卷 496-505页

作者： Jiahao Ren liquan Zhu Xi zhang Yuqian Luo Xuecai Z{1. Bowen li Yuwen wang Kai zhang State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China Zhuzhou Environment Monitoring center Zhuzhou 412000China Faculty of Environmental Engineering The University of Kitakyushu1–1 HibikinoWakamatsuKitakyushuFukuoka 808-0135Japan College of Natural Resources and Environment South China Agricultural UniversityGuangzhou 510642China

Zhuzhou was one of the most polluted cities in china with the serious acid *** to the implementation of air pollution control measures from 201. to 201.,the acid rain pollution in this city has *** order to understand the recent situation,a comprehensive study on the acid rain was carried out from January 201. to December *** pH values during the study period varied from 3.3 to 7.5,with a volume-weighted mean value of *** predominant acidic components of the precipitation were SO_(4)^(2-)and NO_(3)^(-),accounting for 89.3% of the total *** ratio of non-sea-salt SO_(4)^(2-)to NO_(3)^(-)showed a decreasing trend,revealing that the pollution type of acid rain changed from sulfuric acid type to sulfuric acid and nitric acid compound *** correlation analysis(p2-)was positively correlated with NH_(4)^(+),Ca^(2+),and Mg^(2+);hence,it predominated in precipitation as(NH_(4))_(2)SO_(4),NH_(4)HSO_(4),CaSO_(4),and MgSO_(4).Significant positive correlation of Ca^(2+)with Mg^(2+)shows that they may originated mainly from *** positive correlation between SO_(4)^(2-)and F^(-)and Cl^(-)indicate that their source may be related to the non-ferrous metal smelting industry in *** correlation analysis shows that emissions from the non-ferrous metal smelting industry in the area have a large significant on SO_(4)^(2-)and F^(-)in precipitation,while Cl^(-)may still be emitted from other anthropogenic sources.

关键词： Acid rain pH Chemical composition Neutralization factor Correlation analysis

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KIF5B-mediated internalization of FMDV promotes virus infection

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Virologica Sinica 2024年第3期39卷 378-389页

作者： Wei zhang Fan Yang Yang Yang Weijun {1. Wenhua Shao Jiali wang Mengyao Huang Zhitong Chen Xiaoyi Zhao Weiwei li Zixiang Zhu Haixue Zheng State Key Laboratory for Animal Disease Control and Prevention College of Veterinary MedicineLanzhou UniversityLanzhou Veterinary Research InstituteChinese Academy of Agricultural SciencesLanzhou 730000China Gansu Province Research center for Basic Disciplines of Pathogen Biology Lanzhou 730046China

Foot-and-mouth disease(FMD)is a highly contagious and economically important disease,which is caused by the FMD virus(FMDV).Although the cell receptor for FMDV has been identified,the specific mechanism of FMDV internalization after infection remains *** this study,we found that kinesin family member 5B(KIF5B)plays a vital role during FMDV ***,we confirmed the interaction between KIF5B and FMDV structural protein VP1.by co-immunoprecipitation(Co-IP)and co-localization in FMDV-infected *** particular,the stalk[amino acids(aa)41.–678]domain of KIF5B was indispensable for KIF5B-VP1.***,overexpression of KIF5B dramatically enhanced FMDV replication;consistently,knockdown or knockout of KIF5B suppressed FMDV ***,we also demonstrated that KIF5B promotes the internalization of FMDV via regulating clathrin ***5B also promotes the transmission of viral particles to early and late endosomes during the early stages of *** conclusion,our results demonstrate that KIF5B promotes the internalization of FMDV via regulating clathrin uncoating and intracellular *** study may provide a new therapeutic target for developing FMDV antiviral drugs.

关键词： FMDV VP1.protein KIF5B Endosome Clathrin

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TabHLH27 orchestrates root growth and drought tolerance to enhance water use efficiency in wheat

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Journal of Integrative Plant Biology 2024年第7期66卷 1295-1312页

作者： Dongzhi wang Xiuxiu {1. Yuan cao Aamana Batool Yongxin Xu Yunzhou Qiao Yongpeng li Hao wang Xuelei lin Xiaomin Bie Xiansheng {1. Ruilian Jing Baodi Dong Yiping Tong Wan Teng Xigang liu Jun Xiao Key Laboratory of Plant Cell and Chromosome Engineering Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China university of Chinese Academy of Sciences Beijing 100049China center for Agricultural Resources Research Institute of Genetics and Developmental BiologyChinese Academy of SciencesShijiazhuang 050022China Key Laboratory of Crop Biology College of Life SciencesShandong Agricultural UniversityTai'an 271018China State Key Laboratory of Crop Gene Resources and Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Ministry of Education Key Laboratory of Molecular and Cellular Biology Hebei Research Center of the Basic Discipline of Cell BiologyHebei Collaboration Innovation Center for Cell Signaling and Environmental AdaptationHebei Key Laboratory of Molecular and Cellular BiologyCollege of Life SciencesHebei Normal UniversityShijiazhuang 050024China Centre of Excellence for Plant and Microbial Science(CEPAMS) JIC‐CASBeijing 100101China

Cultivating high-yield wheat under limited water resources is crucial for sustainable agriculture in semiarid *** water scarcity,plants activate drought response signaling,yet the delicate balance between drought tolerance and development remains *** genome-wide association studies and transcriptome profiling,we identified a wheat atypical basic helix-loop-helix(b HLH)transcription factor(TF),Tab HLH27-A1.as a promising quantitative trait locus candidate for both relative root dry weight and spikelet number per spike in *** HLH27-A1.B1.D1.knockout reduced wheat drought tolerance,yield,and water use efficiency(WUE).Tab HLH27-A1.exhibited rapid induction with polyethylene glycol(PEG)treatment,gradually declining over *** activated stress response genes such as Ta CBL8-B1.and Ta CPI2-A1.while inhibiting root growth genes like Ta SH1.-B1.and Ta WRKY70-B1.under short-term PEG *** distinct transcriptional regulation of Tab HLH27-A1.involved diverse interacting factors such as Ta ABI3-D1.and Tab *** variations of Tab HLH27-A1.nfluence its transcriptional responses to drought stress,with Tab HLH27-A1.(Hap-II)associated with stronger drought tolerance,larger root system,more spikelets,and higher WUE in ***,the excellent Tab HLH27-A1.(Hap-II)was selected during the breeding process in china,and introgression of Tab HLH27-A1.(Hap-II)allele improved drought tolerance and grain yield,especially under water-limited *** study highlights Tab HLH27-A1.s role in balancing root growth and drought tolerance,providing a genetic manipulation locus for enhancing WUE in wheat.

关键词： drought tolerance GWAS root growth wheat WUE

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