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Chinese Journal of Polymer Science 2021年第7期39卷 849-855页

作者： Xiao-Lan Qiao jie Yang Lian-He Han ji-dong zhang Mei-Fang Zhua State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China

Poly(3-hexylthiophene)(P3HT)thin films,obtained by normal spin-coating and solvent vapor assisted spin-coating(SVASP)before and after thermal annealing(TA),and the corresponding devices were prepared to unravel the microstructure-property relationship,which is of great importance for the development of organic *** SVASP-TA films were used as the active layers of the organic field-effect transistors,a hole mobility up to 0.38 cm^(2)·V^(-1)·s^(-1)was *** mobility was one of the highest values and one order of magnitude higher than that of the normal spin-coating films based *** relationship between the microstructure and the device performance was fully investigated by UV-Vis absorption spectra,grazing incident X-ray diffraction(GIXD),and atomic force microscopy(AFM).The impressive mobility was attributed to the high crystallinity and ordered molecule packing,which stem from the synergistic effects of SVASP and thermal annealing.

关键词： Poly(3-hexylthiophene) Polymer field-effect transistors Microstructure Polymer semiconductors

Mechanical properties of graphene nanoplatelets reinforced 7075 aluminum alloy composite fabricated by spark plasma sintering

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International Journal of Minerals,Metallurgy and Materials 2020年第9期27卷 1295-1300页

作者： Hui-min Xia Lan zhang Yong-chao Zhu Na Li Yu-qi Sun ji-dong zhang Hui-zhong Ma School of Mechanics and Engineering Science Zhengzhou UniversityZhengzhou 450000China

A 0.3wt%graphene nanoplatelets(GNPs)reinforced 7075 aluminum alloy matrix(7075 Al)composite was fabricated by spark plasma sintering and its strength and wear resistance were *** microstructures of the internal structure,the friction surface,and the wear debris were characterized by scanning electron microscopy,X-ray diffraction,and Raman *** with the original 7075 aluminum alloy,the hardness and elastic modulus of the 7075 Al/GNPs composite were found to have increased by 29%and 36%,*** results of tribological experiments indicated that the composite also exhibited a lower wear rate than the original 7075 aluminum alloy.

关键词： 7075 aluminum alloy graphene nanoplatelets spark plasma sintering strength wear resistance

Active Layer Morphology Engineering of All-polymer Solar Cells by Systematically Tuning Molecular Weights of Polymer Donors/Acceptors

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Chinese Journal of Polymer Science 2021年第11期39卷 1449-1458页

作者： Ning Wang Ying-jian Yu Ru-Yan Zhao ji-dong zhang Jun Liu Li-Xiang Wang State Key Lboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China

In all-polymer solar cells(APSCs),number-average molecular weights(Mns)of polymer donors and polymer acceptors play an important role in active layer morphology and photovoltaic *** this work,based on a series of APSCs with power conversion efficiency of approaching 10%,we study the effect of Mns of both polymer donor and polymer acceptor on active layer morphology and photovoltaic performance of *** select poly[4-(5-(4,8-bis(5-((2-butyloctyl)thio)thiophen-2-yl)-6-methylbenzo[1,2-b:4,5-b’]dithiophen-2-yl)thiophen-2-yl)-5,6-difluoro-2-(2-hexyldecyl)-7-(5-methylthiophen-2-yl)-2 H-benzo[d][1,2,3]triazole](CD1)as the polymer donor and poly[4-(5-(5,10-bis(2-dodecylhexadecyl)-4,4,9,9-tetrafluuoro-7-methyl-4,5,9,10-tetrahydro3 a,5,8,10-tetraaza-4,9-diborapyren-2-yl)thiophen-2-yl)-7-(5-methylthiophen-2-yl)benzo[c][1,2,5]thiadiazole](PBN-14)as the polymer *** Mns of polymer donor CD1 are 14.0,35.5 and 56.1 kg/mol,respectively,and the Mns of polymer acceptor PBN-14 are 32.7,72.4 and 103.4 kg/mol,*** get the desired biscontinueous fibrous network morphololgy of the polymer donor/polymer acceptor blends,at least one polymer should have high or medium ***,when the Mn of polymer acceptor is high,the active layer morphology and APSC device performance are insensitive to the Mn of polymer *** optimal APSC device performance is obtained when the Mn of both the polymer donor and the polymer acceptor are *** results provide a comprehensive and deep understanding on the interplay and the effect of Mn of polymer donors and polymer acceptors in highperformance APSCs.

关键词： All-polymer solar cells Molecular weights Polymer aggregation Active layer morphology

Eddy current effects in a high field dipole

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Nuclear Science and Techniques 2017年第12期28卷 198-203页

作者： Man-Zhou zhang zhang Miao zhang Xiu-Cui Xie Song-Qing Tan ji-dong zhang Lian-Hua Ouyang Rui Li De-Ming Li Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China

Eddy currents produced by a time-varying magnetic field will introduce time delay and thus affect field quality. This effect leads to drifting of the beam position over time, especially for a compact *** and measurements of different dipoles have been performed, to investigate the time delay and field quality. The simulations are conducted using OPERA software. The measurements are conducted using a long coil and Hall sensor. All results show that the magnetic field deviation is up to 0.4% for the dipole with stainless steel endplates. The simulations show that the main sources of eddy current are the field saturation effect and the field component Bz, introduced by the bedstead-type coil. Field correction using a power supply is adopted to reduce the deviation to less than 0.02%.

关键词： Eddy current Time delay Magnetic field measurement Dipole Field control

The emerging role of exosomes in the development of testicular

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Asian Journal of Andrology 2023年第5期25卷 547-555页

作者： Chun-Yang Li Song-Po Liu Xiao-Fang Dai dong-Feng Lan Tao Song Xian-Yao Wang Qing-Hong Kong Jun Tan ji-dong zhang Department of Immunology Zunyi Medical UniversityZunyi 563000China Special Key Laboratory of Gene Detection and Therapy of Guizhou Province Zunyi Medical UniversityZunyi 563000China Collaborative Innovation Center of Tissue Damage Repair and Regeneration Medicine Zunyi Medical UniversityZunyi 563000China Guizhou Provincial College-Based Key Lab for Tumor Prevention and Treatment with Distinctive Medicines Zunyi Medical UniversityZunyi 563000China Department of Histology and Embryology Zunyi Medical UniversityZunyi 563000China

The mechanisms of testicular development in mammals are *** is an organ that produces sperm and secretes *** is rich in exosomes and cytokines that mediate signal transduction between tubule germ cells and distal cells,promoting testicular development and *** are nanoscale extracellular vesicles that transmit information between *** transmitting information,exosomes play an important role in male infertility diseases such as azoospermia,varicocele,and testicular ***,due to the wide range of sources of exosomes,extraction methods are numerous and ***,there are many difficulties in studying the mechanisms of exosomal effects on normal development and male ***,in this review,first,we introduce the formation of exosomes and methods for culturing testis and ***,we introduce the effects of exosomes on different stages of testicular ***,we summarize the prospects and shortcomings of exosomes when used in clinical *** lay the theoretical foundation for the mechanism of the influence of exosomes on normal development and male infertility.

关键词： exosomes miRNA Sertoli cells sperm testis

Clinical and experimental study on regional administration of phosphorus32 glassmicrospheres in treating hepatic carcinoma

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World Journal of Gastroenterology 1999年第6期5卷 492-505页

作者： LIU Lu, jiANG Zao, TENG Gao Jun, SONG ji Zhi, zhang dong Sheng, GUO Qing Ming, FANG Wen, HE Shi Cheng and GUO jin He 南京铁道医科大学江苏苏州

AIM To study the therapeutical effectiveness, dosage range and toxic adverse effects of domestic phosphorus 32 glass microsphere and evaluate its clinical significance. METHODS Ⅰ. Fifty two BALB/*!c tumor bearing male nude mice were allocated into treatment group( n =38) and control group( n =14). In the former group different doses of 32 P GMS were injected into the tumor mass, while in the latter 31 P GMS or no treatment was given. The experimental animals were sacrificed in batches, and then the tumors and their nearby tissues were examined by light and electron microscopy. Ⅱ. Through selective catheterization of hepatic artery, 32 P GMS was infused to 5 healthy domestic pigs in a dosage equivalent to the therapeutic dose for human being, and 31 P GMS was infused to another 5 healthy domestic pigs. Two pigs infused with contrast medium served as whole course blank controls. One pig from each group was surrendered to euthanasia at week 1, 4, 8 and 16 respectively. The ultrastructural histopath ological changes in liver tissues taken from different sites were evaluated semiquan titatively. Ⅲ. One hundred and twenty seven times of 32 P GMS intrahepatic artery interventional therapies were performed on 93 patients with hepatic carcinoma, including 79 cases of primary hepatic carcinoma and 14 cases of secondary hepatic carcinoma. 32 P GMS ( n =30), and group B, 32 P GMS and half dose of trans hepatic artery embolization (TAE) ( n =49) , and 18 patients with HCC by TAE only as control group C. Fourteen patients with secondary hepatic carcinoma were treated in the same way as group B or C. RESULTS Ⅰ. Comparing with the control group, the treatment group of tumor bearing nude mice attained the tumor inhibition rates of 59 7%-93 7% ( F =579 62, P <0 01) at 14*!d . At an absorbed dose of 7320Gy, the tumor cells were completely destroyed. When the absorbed doses ranged from 1830Gy to 3660Gy, most of the tumor cells showed the evidences of injury or necrosis, but there appea

关键词： liver neoplasms/therapy phosphorus 32 glass microspheres ( 32 P GMS) 31 P GMS interventional therapy

Activation of bone morphogenetic protein-6 gene transcription in MCF-7 cells by estrogen

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Chinese Medical Journal 2005年第19期118卷 1629-1636页

作者： zhang Ming YAN ji-dong zhang Lei WANG Qing Lü Shu-jun zhang jie ZHU Tian-hui Laboratory of Molecular Medicines Medical College Nankai University Tianjin 300071 China

Background Bone morphogenetic protein-6 （BMP-6） is closely correlated with tumor differentiation and skeletal metastasis. Estrogen is considered as a stimulant for the initiation and promotion of breast cancer. Previous studies demonstrated that 17β-estadiol （E2） can selectively increase the expression of BMP-6. This experiment is designed to detect the molecular mechanism of estrogen activating BMP-6 gene transcription in human estrogen receptor positive （ER ^＋） breast cancer cell line MCF-7. Methods After the treatment of MCF-7 cells with E2 at different concentrations （ 10^-11 mol/L, 10.9 mol/L, 10.7 mol/L）, the BMP-6 expression level was examined through real-time polymerase chain reaction. Through restriction enzyme digestion, human BMP-6 1.2 kb long promoter, BMP-6 0. 7 kb long promoter was cloned into pGL-3 basic vector; after the treatment with 10^-7 mol/L E2, luciferase activities of the two promoters were detected. Site-directed mutagenesis was performed to obtain the mutant forms of estrogen response element half- site （ 1/2 ERE） element and Spl sites in the BMP-6 promoter, the activities of these mutant form promoters were detected following the methods mentioned above. Chromatin immunoprecipitation （CHIP） assay was also used to confirm the binding of estrogen receptor a （ERα） on BMP-6 promoter in the presence of E2. Results E2 dose dependently increased BMP-6 mRNA expression in human ER ^＋ breast cancer cell line MCF-7. At a dose of 10^-7 mol/L E2, human BMP-6 1.2 kb promoter activity was increased by 90% compared with the control group treated with ethanol （P 〈 0. 05 ）. Both the 1/2 ERE response element mutant form and the Spl site mutant form of the BMP-6 promoter abolished the activation of the BMP-6 promoter＇ s response to E2. Through ChIP assay, the binding of ERot on 1/2 ERE response element in BMP-6 promoter was further validated. Conclusion Estrogen induces BMP-6 expression in human ER^＋ breast cancer cell line MCF-7 receptor ERα binding on 1/2

关键词： bone morphogenetic protein-6 estrogen chromatin immunoprecipitation site-directed mutagenesis

Experimental research on benzene detection using ion mobility spectrometer with a laser ionization source

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Optoelectronics Letters 2006年第4期2卷 299-301页

作者： LIU Xian-yun KONG Xiang-he ji Ren-dong zhang ,Shu-dong zhang Shu-dong College of Physics and Engineering Guru Normal University Guru 273165 China

An ion mobility spectrometer equipped with a laser ionization source is used for the sensitive detection of *** spectra of the benzene are *** also discussed the mobility spectra at various concentrations and drift *** limits are determined to be in the upper ppb_v *** the end,the advantages and possibilities of this technique are briefly discussed.

关键词：苯检测波谱测定仪激光电离源离子迁移

Activation of bone morphogenetic protein-6 gene transcription in MCF-7 cells by estrogen

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中华医学杂志(英文版) 2005年第19期000卷 47-54页

作者： zhang Ming, YAN ji-dong, zhang Lei, WANG Qing, LV Shu-jun, zhang jie and ZHU Tian-huiLaboratory of Molecular Medicines, Medical College, Nankai University, Tianjin 300071, China Laboratory of Molecular Medicines Medical College Nankai University Tianjin 300071 China

Bone morphogenetic protein-6 (BMP-6), which belongs to the transforming growth factor-β (TGF-β) superfamily, is a multifunctional molecule that regulates bone growth and organ development. Besides the common characteristics of BMP family members that induce chondrocyte differentiation and endochondral bone formation,~1 BMP-6 is overexpressed in breast cancer, prostate cancer and salivary gland cancer, and is speculated to be closely associated with skeletal metastasis.~ 2-5

关键词： bone morphogenetic protein-6 · estrogen · chromatin immunoprecipitation · site-directed mutagenesis

溶剂性质对溶剂蒸气加速等规聚丁烯-1相转变的影响

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高分子学报 2022年第3期53卷 254-260页

作者：姜继超宋新月毛禹东吴广峰张吉东中国科学院长春应用化学研究所高分子物理与化学国家重点实验室长春130022 中国科学技术大学应用化学与工程学院合肥230026 长春工业大学化学与工程学院长春130012

以50℃等温结晶后的等规聚丁烯-1(PB-1)为研究对象,利用X射线衍射(XRD)和示差扫描量热技术(DSC)对不同溶剂蒸气处理的PB-1进行分析,并用原位XRD在线研究了溶剂熏蒸聚丁烯-1的Ⅱ-Ⅰ相转变过程.XRD与DSC结果表明除了水和醇类溶剂,其他大... 详细信息

以50℃等温结晶后的等规聚丁烯-1(PB-1)为研究对象,利用X射线衍射(XRD)和示差扫描量热技术(DSC)对不同溶剂蒸气处理的PB-1进行分析,并用原位XRD在线研究了溶剂熏蒸聚丁烯-1的Ⅱ-Ⅰ相转变过程.XRD与DSC结果表明除了水和醇类溶剂,其他大多数溶剂如正己烷、三氯甲烷、1,2-二氯乙烷、苯、甲苯、二甲苯、氯苯、乙酸乙酯、四氢呋喃、丙酮溶剂对Ⅱ-Ⅰ相转变过程均有明显的促进作用,可以使常规条件下4~5天的相转变加速到几十分钟.通过原位XRD表征发现,溶剂熏蒸过程中聚丁烯-1的晶型转变过程为晶型Ⅱ消失的同时晶型I生成.溶剂进入样品内部促进晶型转变主要分为两步:吸附和扩散.吸附主要受溶解度参数和极性影响,水和乙醇等不良溶剂没有促进相变的效果;而扩散主要取决于溶剂分子的几何尺寸:单一方向的小尺寸更有利于进入样品内部,促进晶型转变.通过这个研究我们认为正己烷或石油醚是加速PB-1的Ⅱ-I相转变的高效低毒溶剂,具有潜在的应用前景.

关键词：等规聚丁烯-1 晶型转变溶剂蒸气退火 X射线衍射