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Two Zinc Complexes Supported by in situ Formed Etheric Ligands

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Chinese Journal of Structural Chemistry 2019年第9期38卷 1593-1599页

作者： YANG Le LIU Yong-Lu ZHANG En-Sheng CHEN Xiao-Li GAO lou-jun YANG Hua Laboratory of New Energy&New Function Materials Shaanxi Key Laboratory of Chemical Reaction EngineeringCollege of Chemistry and Chemical EngineeringYan’an UniversityShaanxi716000China College of Chemistry and Chemical Engineering Xi’an University of Science and TechnologyXi’an710054China College of Chemistry Chemical Engineering and Materials ScienceSoochow UniversitySuzhou215123China

Two zinc complexes, [Zn(MPIP)Cl2](1) and [Zn(EPIP)Cl2](2), where MPIP = 1-(methoxymethyl)-3-(pyridin-2-yl)imidazo[1,5-a]pyridine and EPIP = 1-(ethoxymethyl)-3-(pyridin-2-yl)imidazo[1,5-a]pyridine, were synthesized under solvothermal conditions. The etheric ligand MPIP was formed in situ via metal ligand reaction between(3-(pyridin-2-yl)imidazo[1,5-a]pyridin-1-yl)methanol(HPIPM) and methanol solvent. Similarly, the ligand EPIP was generated in situ from the reaction of HPIPM with ethanol solvent. The structures of 1 and 2 were characterized by X-ray single-crystal diffraction analysis. They are four-coordinated mononuclear complexes, and the ZnII ion of 1 and 2 displays distorted tetrahedral geometry. The photoluminescent properties of 1 and 2 were investigated. Strong emissions were observed for both 1 and 2, which were ascribed as the intraligand(π-π*) fluorescent transitions. This paper provides a simple and efficient method for the synthesis of etheric compounds.

关键词： zinc complexes in situ reactions etheric ligands photoluminescent property

Advances on hypoxia inducible factor-1

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Chinese Medical Journal 2013年第18期126卷 3567-3571页

作者： WANG Xiao-jun SI lou-bin Department of Plastic Surgery Peking Union Medical College Hospital Chinese Academy of Medical Science Peking Union Medical College Beijing 100032 China

Hypoxia inducible factor-1 （HIF-1） was first discovered by Semenza et al1 in 1991 as a protein which couldspecifically bind to the oligonucleotide sequence of the erythropoietin gene enhancer. The dimmers of HIF-1 were isolated in the following year. As its subunits were found to be induced by hypoxic conditions, it was subsequently named as hypoxia inducible factor.2 HIF-1, commonly found in human and mammalian cells, also expressed in normoxic conditions. However, under physiological conditions, the intracellular HIF-1 protein soon degrades through the oxygen-dependent ubiquitin protease degradation pathway, but is stable under hypoxic conditions.3 HIF-1 is a transcription factor responding to hypoxia and includes a wide range of target gene spectrum. The expressed proteins can produce a series of reactions, including cell oxygen balance, energy metabolism, apoptosis, immune responses, cytokine production, angiogenesis, tumor invasion, and radiotherapy resistance, etc.4＇5 In recent years, more and more research has proposed that HIF-1 is a critical transcription factor in the maintenance of oxygen homeostasis and regulation of the hypoxia responses, and that HIF is the most important approach by which the hypoxia inducible gene transcription information transmitted.

关键词： hypoxia inducible factor-1 hypoxia biological characteristic angiogenesis tumor

Synthesis of large-scale atomic-layer SnS2 through chemical vapor deposition

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Nano Research 2017年第7期10卷 2386-2394页

作者： Gonglan Ye Yongji Gong Sidong Lei Yongmin He Bo Li Xiang Zhang Zehua Jin Liangliang Dong jun lou Robert Vajtai Wu Zhou Pulickel M. Ajayan Department of Materials Science & NanoEngineering Rice University Houston Texas 77005 USA Department of Chemistry Rice University Houston Texas 77005 USA Department of Applied Physics Rice University Houston Texas 77005 USA Materials Science & Technology Division Oak Ridge National Lab Oak Ridge TN 37831 USA School of Materials Science and Engineering Beihang University Beijing 100191 China

Two-dimensional layers of metal dichalcogenides have attracted much attention because of their ultrathin thickness and potential applications in electronics and optoelectronics. Monolayer SnS2, with a band gap of -2.6 eV, has an octahedral lattice made of two atomic layers of sulfur and one atomic layer of tin. Till date, there have been limited reports on the growth of large-scale and high quality SnS2 atomic layers and the investigation of their properties as a semiconductor. Here, we report the chemical vapor deposition （CVD） growth of atomic-layer SnS2 with a large crystal size and uniformity. In addition, the number of layers can be changed from a monolayer to few layers and to bulk by changing the growth time. Scanning transmission electron microscopy was used to analyze the atomic structure and demonstrate the 2H stacking poly-type of different layers. The resultant SnS2 crystals is used as a photodetector with external quantum efficiency as high as 150%, suggesting promise for optoelectronic applications.

关键词： metal dichalcogenides tin disulfide two-dimensional materials chemical vapor deposition photodetector

当下中国县域政治权力生态恶化之探析——基于现代国家构建的视角

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暨南学报（哲学社会科学版） 2011年第1期33卷 74-81,163页

作者：罗筠贵州大学法学院贵州贵阳550025

当下中国部分县域地区政治权力生态恶化的客观现实,引起了国内学界的高度关注,学者们在对现实状况进行分析的基础上运用各种社会科学的方法,尝试从不同的角度去关注县域政治权力生态恶化问题产生的根源。在大量的解释模型中,现代国家构... 详细信息

当下中国部分县域地区政治权力生态恶化的客观现实,引起了国内学界的高度关注,学者们在对现实状况进行分析的基础上运用各种社会科学的方法,尝试从不同的角度去关注县域政治权力生态恶化问题产生的根源。在大量的解释模型中,现代国家构建是一个重要的研究视角,认此为切入点,探析县域政治权力生态恶化的深层次原因,结果表明:国家权力在某些公共领域的不适当退出,以及国家能力的不足,导致了县域政治的衰败和紊乱。

关键词：现代国家构建国家权力国家能力县域政治权力生态

Promotion of TLR-mediated production of type I interferon by Clec16a

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Promotion of TLR-mediated production of type I interferon by...

Approach to Determining Well Productivity in Multi-Media Reservoir

第八届全国免疫学学术大会

作者： Chuan Ouyang jun lou Linrong Lu Institute of Immunology Program in Molecular and Cellular Biology Zhejiang University School of Medicine

Clec16a is a C-type lectin and encodes a protein of unknown *** independent genomewide as-sociation studies(GWAS) have implicated the CLEC16 A gene in several autoimmune diseases, including multiple sclerosis and type 1 ***, how CLEC16 A SNPs confer susceptibility to autoimmune diseases remains *** we report that Clec16 a is considerably expressed in innate immune cells including dendritic cells(DCs), macrophages and microglias and it locates to endosome and *** also found that Clec16 a regulated the activation of type I interferon mediated by LPS or double-stranded RNA in DCs and *** of Clec16 a promoted T RIF-dependent type I interferon signaling pathway and knockdown of Clec16 a inhibited the secretion of type I interferon and the activation of TBK1 and I *** biochemical analysis revealed that Clec16 a interacted with TBK1-IKKi complex and overexpression of Clec16 A enhanced phosphroylation and K63-linked polyubiquitination of TBK1 suggesting a regulatory role of Clec16 A in this signaling *** study identified a previously unrecognized role for Clec16 a in the regulation of type I interferon production and provided molecular insight into the underling mechanisms for the involvement of Clec16 a in autoimmune diseases.

关键词： Clec16a TLR type I interferon TBK1

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Approach to Determining Well Productivity in Multi-Media Res...

SNX10 plays an essential role in macrophage bacteria clearance via regulation of phagosome maturation

2011 International Conference on Energy and Environment(ICEE 2011)

作者： Jiong Wang De-hua Liu Ai-jun lou School of Petroleum Engineering Chong Qing University of Science and Technology School of Petroleum Engineering Yangtze University Gas Deposit Petro China Southwest Oil & Gasfield

The occurrence of caverns, vugs, fractures, or fractures plus vugs is typically characteristic of a carbonate or volcanic reservoir, such as an Ordovician carbonate reservoir in Tarim or a Carboniferous volcanic reservoir in Karamay. Because the two reservoir types are highly heterogeneous and they are distributed in blocks, it is difficult to determine the productivity of a well therein. For this reason, the reservoir within the area controlled by the well is divided into two accumulation systems, i.e. fracture accumulation system ＆ cavern accumulation system, so that a dual-seepage model is established to calculate its productivity. Calculation results of five real-life wells are consistent with the actual production data. And the scope of the fracture accumulation system along with the fracture parameters is determined by means of log interpretation or some other procedure.

关键词： well productivity dual-seepage model fracture accumulation pore/cavern accumulation

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SNX10 plays an essential role in macrophage bacteria clearan...

Role of gut microbiota via the gut-liver-brain axis in digestive diseases

第九届全国免疫学学术大会

作者： jun lou Xiawei Li Wei Huang Linrong Lu Institute of Immunology Program in Molecular and Cellular BiologyZhejiang University School of Medicine

SNX10 belongs to the sorting nexin(SNX)family,which contains the PX domain and involved in protein ***10 does not have other reported domain except the PX domain,which is a phosphoinositides(Pls)binding *** reports su...

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World Journal of Gastroenterology 2020年第40期26卷 6141-6162页

作者： Jian-Hong Ding Zhe Jin Xiao-Xu Yang jun lou Wei-Xi Shan Yan-Xia Hu Qian Du Qiu-Shi Liao Rui Xie Jing-Yu Xu Department of Gastroenterology Affiliated Hospital to Zunyi Medical UniversityZunyi 563003Guizhou ProvinceChina

The gut-brain axis is a bidirectional information interaction system between the central nervous system(CNS) and the gastrointestinal tract, in which gut microbiota plays a key role. The gut microbiota forms a complex network with the enteric nervous system, the autonomic nervous system, and the neuroendocrine and neuroimmunity of the CNS, which is called the microbiota-gut-brain axis. Due to the close anatomical and functional interaction of the gut-liver axis, the microbiota-gut-liver-brain axis has attracted increased attention in recent years. The microbiota-gut-liver-brain axis mediates the occurrence and development of many diseases, and it offers a direction for the research of disease treatment. In this review, we mainly discuss the role of the gut microbiota in the irritable bowel syndrome, inflammatory bowel disease, functional dyspepsia, non-alcoholic fatty liver disease, alcoholic liver disease, cirrhosis and hepatic encephalopathy via the gut-liver-brain axis, and the focus is to clarify the potential mechanisms and treatment of digestive diseases based on the further understanding of the microbiota-gut-liver-brain axis.

关键词： Microbiota-gut-brain axis Gut-liver axis Gut microbiota Digestive diseases Herbaceous medications

Impact of fabrication methods on binder distribution and charge transport in composite cathodes of all-solid-state batteries

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Materials Futures 2023年第4期2卷 127-135页

作者： Benjamin Emley Chaoshan Wu Lihong Zhao Qing Ai Yanliang Liang Zhaoyang Chen Liqun Guo Tanguy Terlier jun lou Zheng Fan Yan Yao Materials Science and Engineering Program and Texas Center for Superconductivity at the University of Houston University of Houston4726 Calhoun RdHoustonTX 77204United States of America Department of Electrical and Computer Engineering University of Houston4726 Calhoun RdHoustonTX 77204United States of America Department of Materials Science and Nano Engineering Rice University6100 Main StreetHoustonTX 77005United States of America SIMS Laboratory Shared Equipment AuthorityRice UniversityHoustonTX 77005United States of America Department of Engineering Technology University of HoustonHoustonTX 77204United States of America

The manufacturing process of all-solid-state batteries necessitates the use of polymer ***,these binders,being ionic insulators by nature,can adversely affect charge transport within composite cathodes,thereby impacting the rate performance of the *** this work,we aim to investigate the impact of fabrication methods,specifically the solvent-free dry process versus the slurry-cast wet process,on binder distribution and charge transport in composite cathodes of solid-state *** the dry process,the binder forms a fibrous network,while the wet process results in binder coverage on the surface of cathode active *** difference in microstructure leads to a notable 20-fold increase in ionic conductivity in the dry-processed ***,the cells processed via the dry method exhibit higher capacity retention of 89%and 83%at C/3 and C/2 rates,respectively,in comparison to 68%and 58%for the wet-processed cells at the same *** findings provide valuable insights into the influence of fabrication methods on binder distribution and charge transport,contributing to a better understanding of the binder’s role in manufacturing of all-solid-state batteries.

关键词： solid-state battery solvent-free dry process polymer binder lithium thiophosphate electrolyte