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Cu^(2+)-Catalyzed Oscillatory Oxidation of Ascorbic Acid by O_2 Flow

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Chinese Chemical Letters 2001年第8期12卷 715-718页

作者： He xing LI ye Ping XU Ming Hui WANG Department of Chemistry Shanghai Normal UniversityShanghai 200234

A novel heterogeneous oscillator, the Cu2+-catalyzed oscillatory oxidation of ascorbic acid (Vitamin C) in aqueous solution by O-2 flow was reported. Both the potential oscillations on Pt-electrode corresponding to [Cu2+] and the absorbance oscillations at lambda =260 nm corresponding to [ascorbic acid] were observed. Oscillations in the completely homogeneous system were also observed. Effects of several factors on the oscillations were investigated.

关键词： Organic-O2 oscillators heterogeneous and homogeneous oscillators Cu2+ O2 flow ascorbic acid

Self-Powered Piezo-Supercapacitors Based on ZnO@Mo-Fe-MnO_(2)Nanoarrays

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Energy & Environmental Materials 2024年第4期7卷 304-314页

作者： Luo Sun Zhiguo ye Xinyuan Peng Shaojie Zhuang Duosheng Li zhong Jin School of Materials Science and Engineering Nanchang Hangkong University696#FengHeNan RoadNanchang 330063China State Key Laboratory of Coordination Chemistry MOE Key Laboratory of Mesoscopic ChemistryMOE Key Laboratory of High Performance Polymer Materials and TechnologyJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

The development of self-charging supercapacitor power cells(SCSPCs)has profound implications for smart electronic devices used in different ***,we epitaxially electrodeposited Mo-and Fe-codoped MnO_(2)films on piezoelectric ZnO nanoarrays(NAs)grown on the flexible carbon cloth(denoted ZnO@Mo-Fe-MnO_(2)NAs).A self-charging supercapacitor power cell device was assembled with the Mo-and Fe-codoped MnO_(2)nanoarray electrode and poly(vinylidenefluoride-co-trifluoroethylene)(PVDF-Trfe)piezoelectric film doped with BaTiO_(3)(BTO)and carbon nanotubes(CNTs)(denoted PVDF-Trfe/CNTs/BTO).The self-charging supercapacitor power cell device exhibited an energy density of 30μWh cm^(-2)with a high power density of 40 mW cm^(-2)and delivered an excellent self-charging performance of 363 mV(10 N)driven by both the piezoelectric ZnO nanoarrays and the poly(vinylidenefluoride-co-trifluoroethylene)piezoelectric film doped with BaTiO_(3)and carbon *** intriguingly,the device could also be self-charged by 184 mV due to residual stress alone and showed excellent energy conversion efficiency and low self-discharge *** work illustrates for the first time the self-charging mechanism involving electrolyte ion migration driven by both electrodes and films.A comprehensive analysis strongly confirmed the important contribution of the piezoelectric ZnO nanoarrays in the self-charging process of the self-charging supercapacitor power cell *** work provides novel directions and insights for the development of selfcharging supercapacitor power cells.

关键词： MnO_(2) piezoelectric self-charging supercapacitors ZnO nanoarray

Cross-species transmission and host range genes in poxviruses

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Virologica Sinica 2024年第2期39卷 177-193页

作者： Chen-Hui Yang A-Ling Song ye Qiu xing-Yi Ge College of Biology Hunan Provincial Key Laboratory of Medical VirologyHunan UniversityChangsha410012China

The persistent epidemic of human mpox, caused by mpox virus (MPXV), raises concerns about the future spread ofMPXV and other poxviruses. MPXV is a typical zoonotic virus which can infect human and cause smallpox-likesymptoms. MPXV belongs to the Poxviridae family, which has a relatively broad host range from arthropods tovertebrates. Cross-species transmission of poxviruses among different hosts has been frequently reported andresulted in numerous epidemics. Poxviruses have a complex linear double-strand DNA genome that encodeshundreds of proteins. Genes related to the host range of poxvirus are called host range genes (HRGs). This reviewbriefly introduces the taxonomy, phylogeny and hosts of poxviruses, and then comprehensively summarizes thecurrent knowledge about the cross-species transmission of poxviruses. In particular, the HRGs of poxvirus aredescribed and their impacts on viral host range are discussed in depth. We hope that this review will provide acomprehensive perspective about the current progress of researches on cross-species transmission and HRGvariation of poxviruses, serving as a valuable reference for academic studies and disease control in the future.

关键词： Poxvirus Host range gene(HRG) Host spectrum Cross-species transmission

An Approach of Tropospheric Correction for VLBI Phase-Referencing using GPS Data

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Chinese Journal of Astronomy and Astrophysics 2008年第1期8卷 127-132页

作者： Bo Zhang xing-Wu Zheng Jin-Ling Li ye Xu Department of Astronomy Nanjing University Nanjing 210093 Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai 200030 Purple Mountain Observatory Chinese Academy of Sciences Nanjing 210008

The dominant source of error in VLBI phase-referencing is the troposphere at observing frequencies above 5 GHz. We compare the tropospheric zenith delays derived from VLBI and GPS data at VLBA stations collocated with GPS antennas. The systematic biases and standard deviations both are at the level of sub-centimeter. Based on this agreement, we suggest a new method of tropospheric correction in phase-referencing using combined VLBI and GPS data.

关键词： techniques VLBI - techniques GPS - atmospheric effects - methods data analysis- astrometry

Liquid metal-assisted hydrothermal preparation of cobalt disulfide on the polymer tape surface for flexible sensor

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Nano Research 2023年第5期16卷 7575-7582页

作者： Yudong Cao Haibin zhong Bin Chen Xianglong Lin Jianfeng Shen Mingxin ye Institute of Special materials and Technology Fudan UniversityShanghai 200433China Department of Chemistry Fudan UniversityShanghai 200433China Department of Materials Science Fudan UniversityShanghai 200433China

Nowadays,two-dimensional transition metal chalcogenides have become attractive materials for flexible wearable devices because of their intriguing chemistry characteristics and sensitivity to external ***,the growth of two-dimensional materials on polymer surfaces is generally carried out by the time-consuming and costly chemical vapor deposition *** the manufacturing and integration costs while improving the device performance remains to be ***,we report a simple liquid metal-assisted hydrothermal method for the growth of two-dimensional nanomaterials on the polymer ***,a layer of liquid metal was coated on commercial tape,while layered cobalt sulfide was grown on its surface by a simple one-step hydrothermal *** kinds of flexible sensors can be prepared,such as bending sensor,pressure sensor,humidity sensor,which can be used to detect motion,writing,breathing,other *** strategy can also be assigned to sensing signals on different objects,which may further expand and enrich the application of twodimensional materials in sensing.

关键词： liquid metal CoS_(2) flexible sensor hydrothermal

Design, Synthesis, and Biological Evaluation of Novel Dual Inhibitors of Secretory Phospholipase A2 and Sphingomyelin Synthase

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Chinese Journal of Chemistry 2013年第9期31卷 1164-1170页

作者： xing Gao Haojun Gong Peng Men Lu Zhou Deyong ye Department of Medicinal Chemistry School of Pharmacy Fudan University Shanghai 201203 China

A novel series of eight SMS and sPLA2 dual inhibitors containing indole and a-amino cyanide fragments of different length and substitution position was synthesized and evaluated by three different in vitro assays. Biological evaluation showed that all compounds provided inhibitory effects against SMS （about 50% inhibition at 100 μmol/L） and sPLA2 （14-32 μmol/L）. All the compounds had the SMS activity better than the positive control compound D609 in SMS2 homogenate, with compounds 5b and fie ideal for liver homogenate and SMS2 high expression cell homogenate, respectively.

关键词： atherosclerosis secretory phospholipase A2 (sPLA2) sphingomyelin synthase (SMS) multi-targetdrug design dual inhibitors

Association between intra-pancreatic fat deposition and diseases of the exocrine pancreas: A narrative review

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World Journal of Gastroenterology 2025年第2期31卷 27-41页

作者： Jing ye Jian-Guo Wang Rong-Qiang Liu Qiao Shi Wei-xing Wang Department of General Surgery Renmin Hospital of Wuhan UniversityWuhan 430060Hubei ProvinceChina Department of Pancreatic Surgery Renmin Hospital of Wuhan UniversityWuhan 430060Hubei ProvinceChina

Intrapancreatic fat deposition(IPFD)has garnered increasing attention in recent *** prevalence of IPFD is relatively high and associated with factors such as obesity,age,and ***,the pathophysiological mechanisms underlying IPFD remain unclear,with several potential contributing factors,including oxida-tive stress,alterations in the gut microbiota,and hormonal *** was found to be highly correlated with the occurrence and prognosis of exocrine pan-creatic *** imaging techniques remain the primary diagnostic approach for IPFD,an expanding array of biomarkers and clinical scoring systems have been identified for screening ***,effective treatments for IPFD are not available;however,existing medications,such as glucagon-like peptide-1 receptor agonists,and new therapeutic approaches explored in animal models have shown considerable potential for managing this *** paper reviews the pathogenesis of IPFD,its association with exocrine pancreatic disea-ses,and recent advancements in its diagnosis and treatment,emphasizing the significant clinical relevance of IPFD.

关键词： Intrapancreatic fat deposition Pancreatic steatosis Nonalcoholic fatty pancreas disease Pancreatitis Pancreatic cancer

Directional Oxygen Functionalization by Defect in Different Metamorphic-Grade Coal-Derived Carbon Materials for Sodium Storage

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Energy & Environmental Materials 2022年第1期5卷 313-320页

作者： Hanqing Zhao Dan Zhao Jianqi ye Pengfei Wang Maosheng Chai zhong Li Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province Taiyuan University of TechnologyTaiyuan Shanxi 030024China State Key Laboratory of Coal Conversion Institute of Coal ChemistryChinese Academy of SciencesTaiyuan Shanxi 030001China Center for Nano and Micro Mechanics Tsinghua UniversityBeijing 100084China

As the limiting factor for an energy storage technique from lab-scale to industrial-scale,cost means not only the price of raw materials but also the simplicity of processing *** this work,the oxygen functionalized carbon materials were obtained from three representative different metamorphic-grade coals,that is,lignite,bitumite,*** functional groups like quinones,carboxylic anhydrides,and lactones are easier to form near defects according to the thermogravimetric-mass spectrometry measurements and density functional theory *** the highest amount of defects and C=O contained functional groups,the low metamorphic-grade lignite derived carbon exhibits a reversible capacity of 259.7 mA h g^(-1)after 50 cycles at 0.03 A g^(-1),best among these micron sized coal-based *** surface active sites contribute highly stable and majority of sodium storage capacity evidenced by in situ Raman spectra and cyclic voltammetry curves at different scan *** coal-based carbon materials in this work offer options for industrial applications of sodium-ion battery anode materials.

关键词： anode coal-based carbon oxygen functional groups sodium-ion battery

Quaternized chitosan-assisted in situ synthesized CuS/cellulose nanofibers conductive paper for flexible electrode

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Nano Research 2021年第7期14卷 2390-2397页

作者： Xiujie Huang Bichong Luo Chuanfu Liu Linxin zhong Dongdong ye Xiaoying Wang State Key Laboratory of Pulp and Paper Engineering South China University of Technology381 Wushan RoadGuangzhou 510640China School of Textile Materials and Engineering Wuyi UniversityJiangmen 529020China

Cellulose nanofibers(CNF)are considered to be a potential substrate of energy material for energy storage devices due to the foldable,lightweight,recyclable and environmentally friendly ***,the energy materials tend to distribute unevenly or fall off from CNF easily,resulting in the decrease of the devices’overall ***,for the first time,we used quaternized chitosan(QCS)as stabilizer and adhesive to in situ synthesize and deposite copper sulfide nanocrystals(CuS-NCs)on CNF and further obtained the conductive paper for flexible *** the presence of QCS,CuS-NCs deposited in situ on CNF can be capped and stabilized by the QCS molecular chains for uniform distribution,which is conducive to the capacitive behavior and electrochemical stability of composite *** result shows that the specific capacitance of the composite paper was as high as 314.3 F/g at a current density of 1 A/g,a high rate capacitance of 252.6 F/g was achieved even at a high current density of 10 A/*** reveals that the composite paper exhibited better electrochemical performance than many other CuS-based electrode materials for *** importantly,the composite paper performed well in various folding state without changing much electrochemical ***,this work provides a novel strategy to in situ fabricate paper-based electrode for nextgeneration flexible energy-storage system.

关键词： copper sulfide nanocrystals cellulose nanofiber quaternized chitosan supercapacitors flexible devices