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Chinese Journal of Polymer Science 2014年第8期32卷 975-985页

作者： Gongqing Tang zhi-Guo jiang Xiaofeng Li 张好斌于中振 State Key Laboratory of Organic-Inorganic Composites Department of Polymer Engineering College of Materials Science and Engineering Beijing University of Chemical Technology Beijing Key Laboratory on Preparation and Processing of Novel Polymer Materials Beijing University of Chemical Technology

Simultaneous functionalization and reduction of graphene oxide （GO） is realized by refluxing of GO suspension with polyetheramine （D2000） followed by thermal treatment at 120℃. Compared to GO, the D2000-treated GO （GO- D2000） becomes hydrophobic, thermally stable and highly conductive with an electrical conductivity of 11 S/m, which is almost 8 orders of magnitude higher than that of GO. Due to the high conductivity and improved dispersion of GO-D2000, its epoxy nanocomposites exhibit a sharp transition from electrically insulating to conducting with a low percolation threshold of 0.71 vol%. With 3.6 wt% GO-D2000, the glass transition temperature of the epoxy nanocomposite is 27 K higher than that of neat epoxy.

关键词： Graphene oxide Epoxy Chemical reduction Electrical conductivity Glass transition temperature.

A comparison of honeybee (Apis mellifera) queen, worker and drone larvae by RNA-Seq

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Insect Science 2019年第3期26卷 499-509页

作者： Xu-jiang He Wu-Jun jiang Mi Zhou Andrew B. Barron zhi-jiang Zeng Honeybee Research Institute Jiangxi Agricultural University Nanchang China Biomarker Technologies Co. Ltd. Beijing China 2Department of Biological Sciences Macquarie University North Ryde NSW Australia

Honeybees (Apis mellifera) have haplodiploid sex determination: males develop from unfertilized eggs and females develop from fertilized ones. The differences in larval food also determine the development of females. Here we compared the total somatic gene expression profiles of 2-day and 4-day-old drone, queen and worker larvae by RNASeq. The results from a co-expression network analysis on all expressed genes showed that 2-day-old drone and worker larvae were closer in gene expression profiles than 2-day-old queen larvae. This indicated that for young larvae (2-day-old) environmental factors such as larval diet have a greater effect on gene expression profiles than ploidy or sex determination. Drones had the most distinct gene expression profiles at the 4-day larval stage, suggesting that haploidy, or sex dramatically affects the gene expression of honeybee larvae. Drone larvae showed fewer differences in gene expression profiles at the 2-day and 4-day time points than the worker and queen larval comparisons (598 against 1190 and 1181), suggesting a different pattern of gene expression regulation during the larval development of haploid males compared to diploid females. This study indicates that early in development the queen caste has the most distinct gene expression profile, perhaps reflecting the very rapid growth and morphological specialization of this caste compared to workers and drones. Later in development the haploid male drones have the most distinct gene expression profile, perhaps reflecting the influence of ploidy or sex determination on gene expression.

关键词： caste differentiation envir on mental factors gene expression haploid and diploid honeybees larval development

Modeling impact of culture facilities on hydrodynamics and solute transport in marine aquaculture waters of North Yellow Sea

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Water Science and Engineering 2023年第1期16卷 26-35页

作者： Heng-zhi jiang Yong-peng Ji Ming-liang Zhang National Marine Environmental Monitoring Center Dalian 116023China Beijing Jiutian Weather Co. LtdBeijing 100081China School of Ocean Science and Environment Dalian Ocean UniversityDalian 116023China

An increasing number of marine aquaculture facilities have been placed in shallow bays and open sea,which might significantly affect hydrodynamic and solute transport processes in marine aquaculture *** this study,a coupled hydrodynamic and solute transport model was developed with high-resolution schemes in marine aquaculture waters based on depth-averaged shallow water equations.A new expression of drag force was incorporated into the momentum equations to express the resistance of suspended culture *** coupled model was used to simulate the effect of suspended structures on tidal currents and the movement of a contaminant cloud in the marine aquaculture of the North Yellow Sea,*** simulation results showed a low-velocity area appearing inside the aquaculture cage area,with a maximum reduction rate of velocity close to 45%under high-density *** results also showed that tidal currents were sensitive to the density of suspended cages,the length of cages,and the drag coefficients of *** transport processes of pollutants inside aquaculture facilities were inhibited away from the vicinity of the culture cage area because of the diminished tidal ***,the suspended cages significantly affected the transport processes of pollutants in the coastal aquaculture ***,the reduced horizontal velocity significantly decreased the food supply for the aquaculture areas from the surrounding sea.

关键词： Marine aquaculture Suspended cages Numerical simulation Current reduction Solute transport

Advances in treatment of neurodegenerative diseases: Perspectives for combination of stem cells with neurotrophic factors

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World Journal of Stem Cells 2020年第5期12卷 323-338页

作者： Jie Wang Wei-Wei Hu zhi jiang Mei-jiang Feng Department of Geriatrics the Second Affiliated Hospital of Nanjing Medical UniversityNanjing 210011Jiangsu ProvinceChina Department of Neurology the Affiliated Jiangning Hospital of Nanjing Medical UniversityNanjing 211100Jiangsu ProvinceChina Department of Geriatrics Jinling HospitalMedical School of Nanjing UniversityNanjing 210002Jiangsu ProvinceChina Key Laboratory for Aging&Disease Nanjing Medical UniversityNanjing 210011Jiangsu ProvinceChina

Neurodegenerative diseases,including Alzheimer’s disease,Parkinson’s disease,Huntington’s disease and amyotrophic lateral sclerosis,are a group of incurable neurological disorders,characterized by the chronic progressive loss of different neuronal ***,despite its increasing prevalence among the everincreasing aging population,little progress has been made in the coincident immense efforts towards development of therapeutic *** interest has recently turned towards stem cells including stem cells-derived exosomes,neurotrophic factors,and their combination as potential therapeutic agents in neurodegenerative *** this review,we summarize the progress in therapeutic strategies based on stem cells combined with neurotrophic factors and mesenchymal stem cells-derived exosomes for neurodegenerative diseases,with an emphasis on the combination therapy.

关键词： Neurodegenerative diseases Stem cells Brain-derived neurotrophic factor Glial cell line-derived neurotrophic factor Nerve growth factor Combination therapy

Autophagy plays a protective role in advanced glycation end products-induced apoptosis of chondrocytes via regulation of tumor necrosis factor-α,nuclear factor-κ B and reactive oxygen species

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Asian Pacific Journal of Tropical Medicine 2018年第1期11卷 73-77页

作者： zhi-jiang Sun Ya-Yi Xia Orthopaedics Key Laboratory of Gansu Province The Second Hospital of Lanzhou University

Objective: To study the adverse effects of advanced glycation end products(AGEs) on chondrocytes and the role of autophagy in this process. Methods: Chondrocytes were harvested from the human articular cartilage tissues in surgery. AGEs were administered during chondrocytes culture. The rapamycin was used to induce autophagy. The cell viability was determined by 3-[4,5-dimethylthiazol2-yl]-2,5-diphenyl tetrazolium bromide(MTT) *** expression of tumor necrosis factor-α(TNF-α) and nuclear factor-κ B(NF-κ B) was detected by quantitative real-time polymerase chain reaction. The reactive oxygen species(ROS) production and apoptosis of the chondrocytes were determined by fluorescent probe and flow cytometer, respectively. Results: The chondrocytes viability was significantly reduced after 12 h incubation with AGEs(P<0.01)). In contrast, rapamycin pretreatment increased the chondrocytes viability through autophagy. AGEs increased TNF-α and NF-κ B mRNA expression of chondrocytes and autophagy receded or proceeded the change. AGEs increased intracellular ROS accumulation and autophagy reversed the change. AGEs accelerated chondrocytes apoptosis and autophagy suspended apoptosis. Conclusions: Accumulation of AGEs may have an adverse role for chondrocytes by increasing TNF-α and NF-κB expression, ROS accumulation and apoptosis; meanwhile, autophagy ameliorates the AGEsinduced adverse effects.

关键词： Advanced glycation end products Autophagy Tumor necrosis factor-α Nuclear factor-κ B Reactive oxygen species Apoptosis Chondrocytes

Salt-induced Electron Transfer Photooxidation of Cholesterol in Nonpolar Solvents

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Chemical Research in Chinese Universities 1997年第4期13卷 112-116页

作者： YANG Chen gen WAN Yan jiang zhi qin Department of Organic Chemistry Agricultural CollegeYangzhou UniversityYangzhou225009 Analysis and Research Center Tongji UniversityShanghai200092

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关键词： Cholesterol Photooxygenation Salt induced Electron transfer

GC/MS Analysis of Fractional Extraction of Fusain from Tongting Bituminous Coal in CS_2

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Journal of China University of Mining and Technology 2006年第1期16卷 8-12页

作者： QIN zhi-hong jiang Chun SUN Hao ZONG zhi-min jiang Bing WEI Xian-yong School of Chemical Engineering and Technology China University of Mining ＆ Technology Xuzhou Jiangsu 221008 China

Fusain from Tongting (Huaibei, Anhui Province) bituminous (FTTB) coal was fractionally extracted using Soxhlet extractor with CS2. Then the extracts were analyzed with GC/MS. Comparison of experimental data between FTTB coal and clarain from Tongting bituminous (CTTB) coal was carried out. The results show that the kinds of small molecule components detected by GC/MS of FTTB are less than those of CTTB. Long-chain alkanes exist mostly in the extracts of fusain. Macromolecular networks are predominant in the FTTB coal mainly composed of inertinite in the coal petrography. The size of micropores in the FTTB coal is relatively small, and the development of micropores is relatively low. Thus the content of aromatic compounds with affinity for micropores is relative low in FTTB, while the content of long-chain alkanes with affinity for macromolecule networks is relatively high. Sub-components in exinite determine the distribution of long-chain alkanes extracted in the last stage. Odd-numbered carbon distribution appears when resin is most in exinite, while high carbon alkane distribution appears when exinite is dominant in cutinite. Small aromatic molecules are firstly packed in micropores, and exist in a free state after micropores are saturated.

关键词： coal fusain extraction fractional sample CS2 GC/MS

Mass segregation of embedded clusters in the Milky Way

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Research in Astronomy and Astrophysics 2013年第3期13卷 277-289页

作者： Xin-Yue Er zhi-Bo jiang Yan-Ning Fu Purple Mountain Observatory Chinese Academy of Sciences Graduate University of Chinese Academy of Sciences

Embedded clusters are ideal laboratories for understanding the early phase of the dynamical evolution of clusters as well as massive star formation. An interesting observational phenomenon is that some of the embedded clusters show mass segregation, i.e., the most massive stars are preferentially found near the cluster center. We develop a new approach to describe mass segregation. Using this approach and the Two Micron All Sky Survey Point Source Catalog （2MASS PSC）, we analyze 18 embedded clusters in the Galaxy. We find that 11 of them are mass-segregated and that the others are not mass-segregated. No inversely mass-segregated cluster is found.

关键词： open clusters and associations: general -- stars: formation -- methods:data analysis

Effects of CO_2 Enrichment on Photosynthesis,Growth,and Biochemical Composition of Seagrass Thalassia hemprichii (Ehrenb.) Aschers

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Journal of Integrative Plant Biology 2010年第10期52卷 904-913页

作者： zhi Jian jiang Xiao-Pin Huang Jing-Ping Zhang Key Laboratory of Tropical Marine Environmental Dynamics So~th China Sea Institute of Oceanology Chinese Academy of SciencesGuangzhou 510301 China Graduate School Chinese Academy of Sciences Beijing 100049 China

The effects of CO2 enrichment on various ecophysiological parameters of tropical seagrass Thalassia hemprichii （Ehrenb.） Aschers were tested. T. hemprichii, collected from a seagrass bed in Xincun Bay, Hainan island of Southern China, was cultured at 4 CO2（aq） concentrations in flow-through seawater aquaria bubbled with CO2. CO2 enrichment considerably enhanced the relative maximum electron transport rate （RETRmax） and minimum saturating irradiance （Ek） of T. hemprichii. Leaf growth rate of CO2- enriched plants was significantly higher than that in unenriched treatment. Nonstructural carbohydrates （NSC） of T. hemprichii, especially in belowground tissues, increased strongly with elevated CO2（aq）, suggesting a translocation of photosynthate from aboveground to belowground tissues. Carbon content in belowground tissues showed a similar response with NSC, while in aboveground tissues, carbon content was not affected by CO2 treatments. In contrast, with increasing CO2（aq）, nitrogen content in aboveground tissues markedly decreased, but nitrogen content in belowground was nearly constant. Carbon： nitrogen ratio in both tissues were obviously enhanced by increasing CO2（aq）. Thus, these results indicate that T. hemprichii may respond positively to CO2-induced acidification of the coastal ocean. Moreover, the CO2-stimulated improvement of photosynthesis and NSC content may partially offset negative effects of severe environmental disturbance such as underwater light reduction.

关键词： Nitrogen content Rations Transport Restricted feeding Carbon Nitrogen Carbonates Carbonation

Polythiophene-block-poly(phenyl isocyanide) Copolymers: One-pot Synthesis, Properties and Applications

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Chinese Journal of Polymer Science 2017年第12期35卷 1447-1447,1448-1456页

作者： Li Zhou zhi-qiang jiang Lei Xu 刘娜吴宗铨 Department of Polymer Science and Engineering School of Chemistry and Chemical Engineering and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of Technology

Conjugated block copolymers have gained increasing interests in recent years. Development of a novel method for facile synthesis of conjugated block copolymers with desired structures and functions is greatly desired. In this mini review, we summarized the recent advances in one-pot synthesis of conjugated block copolymers containing π-conjugated polythiophene and helical polyisocyanide segments by using a nickel（Ⅱ） complex as single catalyst. The sequential living polymerization of the two monomers proceeded in a controlled manner, affording expected block copolymers in high yields with controlled molecular weights（Mns） and narrow molecular weight distributions（Mw/Mns）. By using this method, a family of block copolymers with expected structure and tunable compositions can be facilely prepared. Introducing functional groups onto the pendant, these block copolymers can exhibit interesting self-assembly property, tunable light emission and multi-responsiveness.

关键词： Conjugated polymer Helical polymer Polyisocyanide Block copolymer Living polymerization