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Revealing the nature of optical activity in carbon dots produced from different chiral precursor molecules

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Light(Science & Applications) 2022年第5期11卷 855-867页

作者： Ananya Das Evgeny V.Kundelev Anna A.Vedernikova Sergei A.Cherevkov Denis V.Danilov Aleksandra V.Koroleva Evgeniy V.Zhizhin Anton N.Tsypkin Aleksandr P.Litvin Alexander V.Baranov Anatoly V.Fedorov Elena V.Ushakova Andrey L.Rogach center of Information Optical Technologies ITMO UniversitySaint Petersburg 197101Russia research Park Saint Petersburg State UniversitySaint Petersburg 199034Russia Laboratory of Femtosecond Optics and Femtotechnology ITMO UniversitySaint Petersburg 197101Russia Laboratory of Quantum Processes and Measurements ITMO UniversitySaint Petersburg 197101Russia Department of Materials Science and Engineering and Centre for Functional Photonics(CFP)City University of Hong KongKowloonHong Kong SAR 999077China Shenzhen research Institute City University of Hong KongShenzhen 518057China

Carbon dots(CDs)are light-emitting nanoparticles that show great promise for applications in biology and medicine due to the ease of fabrication,biocompatibility,and attractive optical *** chirality,on the other hand,is an intrinsic feature inherent in many objects in nature,and it can play an important role in the formation of artificial complexes based on CDs that are implemented for enantiomer recognition,site-specific bonding,*** employed a one-step hydrothermal synthesis to produce chiral CDs from the commonly used precursors citric acid and ethylenediamine together with a set of different chiral precursors,namely,L-isomers of cysteine,glutathione,phenylglycine,and *** resulting CDs consisted of O,N-doped(and also S-doped,in some cases)carbonized cores with surfaces rich in amide and hydroxyl groups;they exhibited high photoluminescence quantum yields reaching 57%,chiral optical signals in the UV and visible spectral regions,and two-photon *** signals of CDs were rather complex and originated from a combination of the chiral precursors attached to the CD surface,hybridization of lower-energy levels of chiral chromophores formed within CDs,and intrinsic chirality of the CD *** DFT analysis,we showed how incorporation of the chiral precursors at the optical centers induced a strong response in their circular dichroism *** optical characteristics of these CDs,which can easily be dispersed in solvents of different polarities,remained stable during pH changes in the environment and after UV exposure for more than 400 min,which opens a wide range of bio-applications.

关键词： properties chiral carbon

石墨烯/钼基二硫族化合物范德华异质结光电探测器的研究进展

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新型炭材料（中英文） 2024年第3期39卷 439-457页

作者：张鑫华刘伟迪龚佑品刘庆丰陈志刚南京工业大学化工学院材料化学工程国家重点实验室江苏南京211816 School of Chemistry and Physics ARC Research Hub in Zero-emission Power Generation for Carbon Neutralityand Center for Materials ScienceQueensland University of TechnologyBrisbaneQLD 4000Australia 重庆大学物理学院前沿交叉学科研究院量子材料与器件研究中心重庆400044

石墨烯因其高载流子迁移率和宽光谱吸收范围而广泛应用于光电探测。然而,其低光吸收率导致的高暗电流严重限制了它的光电探测性能。钼基二硫族化合物(MoX_(2),X=S、Se和Te)具有高的吸收系数,能够弥补石墨烯基光电探测器中暗电流较高的劣... 详细信息

石墨烯因其高载流子迁移率和宽光谱吸收范围而广泛应用于光电探测。然而,其低光吸收率导致的高暗电流严重限制了它的光电探测性能。钼基二硫族化合物(MoX_(2),X=S、Se和Te)具有高的吸收系数,能够弥补石墨烯基光电探测器中暗电流较高的劣势,因此基于石墨烯/MoX_(2)范德华异质结的光电探测器能够表现出优异的光电子特性。本综述首先回顾了光电探测器的工作原理、性能指标和结构。之后,从材料基础的角度突出了石墨烯/MoX_(2)范德华异质结光电探测器的重要性。接着,总结了石墨烯/MoX_(2)范德华异质结光电探测器的制备方法和性能增强策略。最后,强调了这类异质结光电探测器当前面临的挑战及未来的发展方向。本综述将为这类高性能范德华异质结光电探测器的设计提供一定的指导和参考。

关键词：石墨烯钼基二硫族化合物异质结光电探测器范德华

Transcriptome changes in seeds during coleorhiza hair formation in rice

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The Crop Journal 2022年第3期10卷 692-703页

作者： Tao Song ANMRubaiyath Bin Rahman Debatosh Das Neng-Hui Ye Feng Yang Fu-Yuan Zhu Mo-Xian Chen Jian-Hua Zhang Co-Innovation center for Sustainable Forestry in Southern china College of Biology and the EnvironmentNanjing Forestry UniversityNanjing 210037JiangsuChina Shenzhen research Institute The Chinese University of Hong Kon6Shenzhen 518057Guangdon6China Southern Regional Collaborative Innovation center for Grain and Oil Crops in china College of AgricultureHunan Agricultural UniversityChangsha 410128HunanChina Department of Biology Hong Kong Baptist UniversityKowloon 999077Hong Kon6China CAS Key Laboratory of Quantitative Engineering Biology Shenzhen Institute of Synthetic BiologyShenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen 518055Guangdon6China School of Life Sciences and state Key Laboratory of Agrobiotechnology The Chinese University of Hong Kon6Shatin 999077Hong Kon6China

Coleorhiza hairs are hairlike structures in seeds of the grass family(Poaceae).The molecular mechanisms underlying its formation are largely unknown,study on this topic will expand our understanding of the effects of water status on germination during rice(Oryza sativa L.)direct *** of Nipponbare were treated under two water conditions:in one,half of the seed surface was immersed in water and the other half was embryo side in air(EIA),and in the other,the whole seed was covered by water(CBW).Coleorhiza hairs formed only in EIA *** was used to identify the gene regulation during coleorhiza hair formation in EIA(***)embryos and *** displayed more transcriptome modulation even though smaller in size than the *** expressed genes(DEGs)were enriched in both primary and secondary metabolism and showed changes in abscisic acid,auxin,jasmonic acid,and salicylic acid *** enrichment data were positively correlated with gene expression changes in the affected metabolic functional *** presence of shorter coleorhiza hairs in an Os RHL1(Os06 g0184000,a coleorhiza hair formation regulation candidate gene)knockout mutant suggested that root hair-associated DEGs share molecular regulators that control the formation of coleorhiza hairs.

关键词： Embryo Endosperm Transcriptomics Metabolomics Hormone Coleorhiza hair

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Message from Editors

CES Transactions on Electrical Machines and Systems 2021年第4期5卷 271-272页

作者： Ronghai Qu Shoudao Huang Jianxin Shen Fengge Zhang Xiuhe Wang Metin Aydin Xiaoyong Zhu Yongxiang Xu Zhuoran Zhang Gaolin Wang Pinjia Zhang Hong Li Dawei Li academic degrees committee state and Province Joint Engineering research center of Novel Electrical Machines center for Advanced Electrical Machines and Drives(CAEMD) state Key Laboratory of Advanced Electromagnetic Engineering and Technology Hunan University China Zhejiang University China Shenyang University of Technology China Shandong University China Kocaeli University Turkey Jiangsu University China Harbin Institute of Technology China Nanjing University of Aeronautics and Astronautics China Tsinghua University China Huazhong University of Science and Technology China

IN recent years,4th Industrial Revolution and Industry 4.0 have swept the world and deeply influenced the development of global industry *** movement arises wide attention to electric motor drive system which is playing an increasing important role in energy consumption transformation and environment *** this tremendous change in industry field,the concept of high-efficient,energy-saving and intelligent motor system has been *** one hand,motor system with advantages such as low vibration,low noise,weak magnetic interference,renewable utilization capacity,high-efficiency and high-reliability could promote the progress of major industries such as mining,renewable energy and cutting-edged equipment *** the other hand,the realization of intelligent and automated operations of motor drive system would help boosting the automation of industrial production.

关键词： operations realization boosting

Atomically Dispersed Transition Metal-Nitrogen-Carbon Bifunctional Oxygen Electrocatalysts for Zinc-Air Batteries:Recent Advances and Future Perspectives

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Nano-Micro Letters 2022年第2期14卷 257-281页

作者： Fang Dong Mingjie Wu Zhangsen Chen Xianhu Liu Gaixia Zhang Jinli Qiao Shuhui Sun Institut National de La Recherche Scientifique(INRS)-CentreÉnergie Matériaux Télécommunications VarennesQC J3X 1P7Canada Key Laboratory of Materials Processing and Mold Ministry of EducationZhengzhou UniversityZhengzhou 450002People’s Republic of China state Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Environmental Science and EngineeringShanghai Innovation Institute for MaterialsDonghua UniversityShanghai 201620People’s Republic of China Engineering research center of Nano Geomaterials of Ministry of EducationChina University of GeosciencesWuhan 430074People’s Republic of China

Rechargeable zinc-air batteries(ZABs)are currently receiving extensive attention because of their extremely high theoretical specific energy density,low manufacturing costs,and environmental *** bifunctional catalysts with high activity and stability to overcome sluggish kinetics of oxygen reduction reaction and oxygen evolution reaction is critical for the development of rechargeable *** dispersed metal-nitrogen-carbon(M-N-C)catalysts possessing prominent advantages of high metal atom utilization and electrocatalytic activity are promising candidates to promote oxygen *** this work,general principles for designing atomically dispersed M-N-C are ***,strategies aiming at enhancing the bifunctional catalytic activity and stability are ***,the challenges and perspectives of M-N-C bifunctional oxygen catalysts for ZABs are *** is expected that this review will provide insights into the targeted optimization of atomically dispersed M-N-C catalysts in rechargeable ZABs.

关键词： Atomically dispersed metal-nitrogen-carbon Oxygen evolution reaction(OER) Oxygen reduction reaction(ORR) Bifunctional oxygen electrocatalysts Zinc-air batteries(ZABs)

The nuclear cytokine IL-37a controls lethal cytokine storms primarily via IL-1R8-independent transcriptional upregulation of PPARγ

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Cellular & Molecular Immunology 2023年第12期20卷 1428-1444页

作者： Rongfei Wei Xiao Han Mengyuan Li Yuan Ji Lianfeng Zhang Maria-Ioanna Christodoulou Najwa Jameel Hameed Aga Caiyan Zhang Ran Gao Jiangning Liu Jinrong Fu Guoping Lu Xiaojun Xiao Xiaoyu Liu Ping-Chang Yang Iain B.McInnes Ying Sun Peisong Gao Chuan Qin Shau-Ku Huang Yufeng Zhou Damo Xu Institute of Laboratory Animal Science Chinese Academy of Medical Science(CAMS)and Comparative Medicine CenterPeking Union Medical College(PUMC)BeijingChina National Laboratory of Biomacromolecules CAS Center for Excellence in Biom––acromoleculesInstitute of BiophysicsChinese Academy of SciencesBeijing100101China NHC Key Laboratory of Neonatal Diseases Children’s Hospital of Fudan Universityand the Shanghai Key Laboratory of Medical EpigeneticsInternational Co-laboratory of Medical Epigenetics and MetabolismMinistry of Science and TechnologyInstitutes of Biomedical SciencesFudan UniversityShanghai200032China Department of General Practice Medicine Third Affiliated Hospital of Shenzhen UniversityShenzhenChina Institute of Infection Immunity and InflammationUniversity of GlasgowGlasgowUK Tumor Immunology and Biomarkers Laboratory Basic and Translational Cancer Research CenterDepartment of Life SciencesSchool of SciencesEuropean University CyprusNicosia2404Cyprus Department of Critical Care Medicine Children’s Hospital of Fudan UniversityShanghaiChina Institute of Allergy and Immunology Health Science CenterShenzhen UniversityShenzhenChina Department of Immunology School of Basic Medical ScienceCapital Medical UniversityBeijingChina Department of Medicine Johns Hopkins University School of MedicineBaltimoreMDUSA National Institute of Environmental Health Sciences National Health Research InstitutesTaiwanChina state-level Regional Children’s Medical center Children’s Hospital of Fudan University at Xiamen(Xiamen Children’s Hospital)Fujian Provincial Key Laboratory of Neonatal DiseasesXiamenChina

Cytokine storms are crucial in the development of various inflammatory diseases,including sepsis and autoimmune *** immunosuppressive cytokine INTERLEUKIN(IL)-37 consists of five isoforms(IL-37a-e).We identified IL-37a as a nuclear cytokine for the first *** to IL-37b,IL-37a demonstrated greater efficacy in protecting against Toll-like receptor-induced cytokine hypersecretion and lethal endotoxic *** full-length(FL)form of IL-37a and the N-terminal fragment,which is processed by elastase,could translocate into cell nuclei through a distinctive nuclear localization sequence(NLS)/importin nuclear transport *** forms exerted their regulatory effects independent of the IL-1R8 receptor by transcriptionally upregulating the nuclear receptor peroxisome proliferator-activated receptor(PPARγ).This process involved the recruitment of the H3K4 methyltransferase complex WDR5/MLL4/C/EBPβand H3K4me1/2 to the enhancer/promoter of *** receptor-independent regulatory pathway of the nuclear IL-37a–PPARγaxis and receptor-dependent signaling by secreted IL-37a maintain homeostasis and are potential therapeutic targets for various inflammatory diseases,including sepsis.

关键词： IL-37 isoforms IL-37a Nuclear cytokine receptor-independent

Tailor-Made Dynamic Fluorophores:Precise Structures Controlling the Photophysical Properties

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Precision Chemistry 2023年第3期1卷 129-138页

作者： Shuhai Qiu Zhiyun Zhang Zhaohui Wang Da-Hui Qu He Tian Key Laboratory for Advanced Materials and Joint International research Laboratory of Precision Chemistry and Molecular Engineering Feringa Nobel Prize Scientist Joint Research CenterFrontiers Science Center for Materiobiology and Dynamic ChemistryInstitute of Fine ChemicalsSchool of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China Key Laboratory of Organic Optoelectronics and Molecular Engineering Department of ChemistryTsinghua UniversityBeijing 100084China

Organic fluorophores with dynamic conformations in the excited state have played a significant role in applications of organic functional *** them,dihydrophenazine-based dynamic fluorophores involving a photoinduced structural planarization process in the excited state exhibited large Stokes shifts and conformation-dependent multicolor *** the developments of synthetic strategies,precise modifications on dihydrophenazinebased scaffolds have successfully afforded a variety of precise molecular structures of varying sizes and compositions,which have delicately modulated their photophysical ***,this Perspective summarizes the precise modulations of dihydrophenazine-based dynamic fluorophores,including the development of the synthetic methodologies,and tailor-made molecular models to reveal the luminescence−structure relationships.

关键词： Dihydropyrazine Dynamic conformations Vibration-induced emission Precise structure Photophysical property

Tuning 2D magnetism in Fe3+XGeTe2 films by element doping

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National Science Review 2022年第6期9卷 163-170页

作者： Shanshan Liu Zihan Li Ke Yang Enze Zhang Awadhesh Narayan Xiaoqian Zhang Jiayi Zhu Wenqing Liu Zhiming Liao Masaki Kudo Takaaki Toriyama Yunkun Yang Qiang Li Linfeng Ai Ce Huang Jiabao Sun Xiaojiao Guo Wenzhong Bao Qingsong Deng Yanhui Chen Lifeng Yin Jian Shen Xiaodong Han Syo Matsumura Jin Zou Yongbing Xu Xiaodong Xu Hua Wu Faxian Xiu state Key Laboratory of Surface Physics and Department of Physics Fudan University Institute for Nanoelectronic Devices and Quantum Computing Fudan University College of Science University of Shanghai for Science and Technology Laboratory for Computational Physical Sciences(MOE) Fudan University Solid state and Structural Chemistry Unit Indian Institute of Science School of Electronic Science and Engineering Nanjing University Department of Physics University of Washington Department of Electronic Engineering Royal Holloway University of London Materials Engineering The University of Queensland Beijing Key Laboratory of Microstructure and Property of Advanced Materials Institute of Microstructure and Property of Advanced Materials Beijing University of Technology The Ultramicroscopy research center Kyushu University state Key Laboratory of ASIC and System School of Microelectronics Fudan University Collaborative Innovation center of Advanced Microstructures Department of Applied Quantum Physics and Nuclear Engineering Kyushu University Centre for Microscopy and Microanalysis The University of Queensland Shanghai research center for Quantum Sciences

Two-dimensional(2D) ferromagnetic materials have been discovered with tunable magnetism and orbital-driven nodal-line features. Controlling the 2D magnetism in exfoliated nanoflakes via electric/magnetic fields enables a boosted Curie temperature(TC) or phase transitions. One of the challenges, however, is the realization of high TC2D magnets that are tunable, robust and suitable for large scale fabrication. Here, we report molecular-beam epitaxy growth of wafer-scale Fe3+XGeTe2films with TCabove room temperature. By controlling the Fe composition in Fe3+XGeTe2, a continuously modulated TCin a broad range of 185–320 K has been achieved. This widely tunable TCis attributed to the doped interlayer Fe that provides a 40% enhancement around the optimal composition X = 2. We further fabricated magnetic tunneling junction device arrays that exhibit clear tunneling signals. Our results show an effective and reliable approach, i.e. element doping, to producing robust and tunable ferromagnetism beyond room temperature in a large-scale 2D Fe3+XGeTe2fashion.

关键词： 2D ferromagnetic material Fe3+XGeTe2 film element doping above room temperature, TC tunability

Biogenic volatile organic compound emissions from leaves and fruits of apple and peach trees during fruit development

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Journal of Environmental Sciences 2021年第10期33卷 152-163页

作者： Shuangjiang Li Xiangyang Yuan Yan Xu Zhengzhen Li Zhaozhong Feng Xu Yue Elena Paoletti Collaborative Innovation center of Atmospheric Environment and Equipment Technology Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control(AEMPC)School of Environmental Science and EngineeringNanjing University of Information Science&TechnologyNanjing 210044China Key Laboratory of Agrometeorology of Jiangsu Province School of Applied MeteorologyNanjing University of Information Science&TechnologyNanjing 210044China state Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Institute of research on Terrestrial Ecosystems National Council of ResearchVia Madonna del Piano 1050019 Sesto FiorentinoFlorenceItaly

Biogenic volatile organic compounds(BVOCs)are widely involved in a variety of atmospheric chemical processes due to their high reactivity and species *** date,however,research on BVOCs in agroecosystems,particularly fruit trees,remains scarce despite their large cultivation area and economic *** emissions from different organs(leaf or fruit)of apple and peach trees were investigated throughout the stages of fruit development(FS,fruit swelling;FC,fruit coloration;FM,fruit maturity;and FP,fruit postharvest)using a proton-transfer-reaction mass *** indicated that methanol was the most abundant compound emitted by the leaf(apple tree leaf 492.5±47.9 ng/(g·hr),peach tree leaf 938.8±154.5 ng/(g·hr)),followed by acetic acid and green leaf *** the above three compounds,acetaldehyde had an important contribution to the emissions from the ***,the total BVOCs(sum of eight compounds studied in this paper)emitted by both leaf and fruit gradually decreased along the fruit development,although the effect was significant only for the *** leaf(2020.8±258.8 ng/(g·hr))was a stronger BVOC emitter than the fruit(146.0±45.7 ng/(g·hr))(P=0.006),and there were no significant differences in total BVOC emission rates between apple and peach *** findings contribute to our understanding on BVOC emissions from different plant organs and provide important insights into the variation of BVOC emissions across different fruit developmental stages.

关键词： Biogenic volatile organic compounds(BVOCs) Oxygenated VOCs(OVOCs) Fruit trees