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Disk-shaped Symmetric Hexa-substituted Triphenylene Derivatives： Synthesis, Physical Properties and Self-assembly

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Chemical Research in Chinese Universities 2013年第3期29卷 495-499页

作者： WANG dong MI Yong-sheng tang Jian-kai LIANG Peng-xia JIN Zhao-kui YANG Zhou YANG Huai Department of Materials Physics and Chemistry School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 P R. China

A series of triphenylene derivatives with six symmetric substituents was synthesized from hexabromotriphenylene. The synthesis was conducted by six-fold palladium-catalyzed Hagihara-Sonogashira crosscoupling reactions to yield the hexa-alkynyl substituted triphenylene derivatives of HTPI, HTP2, HTP3 and HTP4. The six symmetric substituents can not only endow the triphenylene the longer π-conjugated range, but also increase the solubility of the compounds. Their photophysical, electrochemical, thermal properties were investigated respectively. With the comparison of their properties, the structure-property relationships were established which demonstrated the influences of different substituents on the electronic nature and the mesomorphic phase of these disk-shaped molecules. In addition, with the scanning electron microscopy（SEM） and polarized optical microscopy（POM） characterization, the self-assembly behaviors of the compounds were also investigated.

关键词： Triphenylene π-Conjugated range Photophysical property Electrochemical property Self-assembly

Simultaneous gap arthroplasty combined with distraction osteogenesis in the treatment of unilateral temporo-mandibular joint ankylosis with micrognathia deformity

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中国口腔颌面外科杂志 2008年第B5期6卷 172-173页

作者： Hong Bo Yu Steve Guofang Shen Shi Lei Zhang Xu dong Wang You sheng tang Oral and Maxillofacial Surgery Ninth People's HospitalShanghai Jiao Tong University Shanghai 200011 China

The Multiple Locus Gene Targeting in vivo of Siniperca

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The Multiple Locus Gene Targeting in vivo of Siniperca

Possible Role of DNA Polymerase beta in Protecting Human Bronchial Epithelial Cells Against Cytotoxicity of Hydroquinone

2008年全国生物化学与分子生物学学术大会

作者： dong-sheng tang Hong Jiang Fang Zeng Xia Yan dong Gao (Foshan University,Foshan Guangdong 528000,China)

The techniques of multiple locus gene targeting have been established by the *** research was to set up the technique of multiple locus genes trgeting in vivo of Siniperca *** the DNA sequences of rDNA repeat gene and its internal transcribed spacer of Siniperca as homologous recombination directed sequences (HRDS),the vector ofgene targeting which contain interferon gene,Neo gene,TK gene,HDRS1 and HRDS2

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Biomedical and Environmental Sciences 2007年第2期20卷 171-177页

作者： DA-LIN HU HUAN-WEN tang HAI-RONG LIANG dong-sheng tang YI-MING LIU WEI-dong JI JIAN-HUI YUAN YUN HE ZHENG-Yu ZHU JIAN-PING YANG DAO-KUI FANG YAN SHA XIAO-ZHI TU ZHI-XIONG ZHUANG Department of Preventive Medicine School of Public Health Sun Yat-sen University Guangzhou 510080 Guangdong China Shenzhen Center for Disease Control and Prevention Shenzhen 518020 Guangdong China Medical College Foshan University Foshan 528000 Guangdong China School of Public Health Guangdong Medical College Dongguan 523808 Guangdong China Department of Biochemistry and Molecular Biology Sun Yat-sen University Guangzhou 510080 Guangdong China

Objective To explore the toxicological mechanism of hydroquinone in human bronchial epithelial cells and to investigate whether DNA polymerase beta is involved in protecting cells from damage caused by hydroquinone. Methods DNA polymerase beta knock-down cell line was established via RNA interference as an experimental group. Normal human bronchial epithelial cells and cells transfected with the empty vector of pEGFP-C1 were used as controls. Cells were treated with different concentrations of hydroquinone （ranged from 10 μmol/L to 120 μmol/L） for 4 hours. MTT assay and Comet assay [single-cell gel electrophoresis （SCGE）] were performed respectively to detect the toxicity of hydroquinone. Results assay showed that DNA polymerase beta knock-down cells treated with different concentrations of hydroquinone had a lower absorbance value at 490 nm than the control cells in a dose-dependant manner. Comet assay revealed that different concentrations of hydroquinone caused more severe DNA damage in DNA polymerase beta knock-down cell line than in control cells and there was no significant difference in the two control groups. Conclusions Hydroquinone has significant toxicity to human bronchial epithelial cells and causes DNA damage. DNA polymerase beta knock-down cell line appears more sensitive to hydroquinone than the control cells. The results suggest that DNA polymerase beta is involved in protecting cells from damage caused by hydroquinone.

关键词： Human bronchial epithelial cells RNA interference Hydroquinone Toxicology DNA polymerase beta

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Interaction of Mouse Pem Protein and Cell Division Cycle 37 Homolog

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Acta Biochimica et Biophysica Sinica 2005年第11期37卷 784-787页

作者： Fen GUO Yue-Qin LI Shi-Qian LI Zhi-Wen LUO Xin ZHANG dong-sheng tang Tian-Hong ZHOU College of Life Science and Technology,Jinan University.Guangzhou 510632.China CollegeofLifeScienceandTechnology JinanUniversityGuangzhou510632China

Mouse Pem,a homeobox gene,encodes a protein consisting of 210 amino acid *** the function of mouse Pem protein,we used the yeast two-hybrid system to screen the library of 7-daymouse embryo with full-length mouse Peru ***-two colonies were obtained after 1.57×10~8 colonieswere screened by nutrition limitation and β-galactosidase *** individual insert fragments wereobtained from the library,and three of them were identified,one of which was confirmed to be the celldivision cycle 37(Cdc37)homolog gene by *** interaction between mouse Pem and Cdc37homolog was then confirmed by glutathione S-transferase pull-down assay,and the possible interaction modelwas suggested.

关键词： mPem cell division cycle 37 homolog yeast two-hybrid system

In Vitro Construction of Effective M1GS Ribozymes Targeting HCMV UL54 RNA Segments

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Acta Biochimica et Biophysica Sinica 2005年第3期37卷 210-214页

作者： Yun-Zhen SU Hong-Jian LI Yue-Qin LI Hao-Jun CHEN dong-sheng tang Xin ZHANG Hong JIANG Tian-Hong ZHOU College of Life Science and Technology,Jinan University,Guangzhou 510632,China CollegeofLifeScienceandTechnology JinanUniversityGuangzhou510632China

Seven sequence-specific ribozymes(M1GS RNAs)derived in vitro from the catalytic RNAsubunit of Escherichia coli RNase P and targeting the mRNAs transcribed by the UL54 gene encoding theDNA polymerase of human cytomegalovirus were screened from 11 ribozymes that were designed based onfour rules:(1)the NCCA-3′ terminal must be unpaired with the substrate;(2)the guide sequence(GS)mustbe at least 12 nt in length;(3)the eighth nucleotide must be U,counting from the site-1;and(4)around thecleavage site,the sites-1/+1/+2 must be U/G/C or C/G/*** investigation of the factors affecting thecleavage effect and the optimal ratio for M1GS/substrate was carried *** was determined that the optimalratio for M1GS/substrate was 2:1 and too much M1GS 1ed to substrate *** indicated *** M1GS that cleaved HCMV UL54 RNA segments in vitro were successfully designed and *** studies support the use of ribozyme M1GS as antisense molecules to silence HCMV mRNA in vitro,andusing the selection procedure as a general approach for the engineering of RNase P ribozymes.

关键词： ribonuclease P (RNase P) guide sequence HCMV DNA polymerase

Plasmonic tandem heterojunctions enable high-efficiency charge transfer for broad spectrum photocatalytic hydrogen production

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Journal of Energy Chemistry 2025年第1期100卷 710-720页

作者： Wenxuan Chen Xiu-Qing Qiao Guo Hui Bojing Sun dongfang Hou Meidi Wang Xueqian Wu Tao Wu dong-sheng Li College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials China Three Gorges University Hubei Three Gorges Laboratory College of Chemistry and Materials Science and Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry Jinan University

Rational engineering of semiconductor photocatalysts for efficient hydrogen production is of great significance but still challenging,primarily due to the limitations in charge transfer ***,a fascinating plasmonic tandem heterojunction with the hc-CdS/Mo2C@C heterostructure is aimfully prepared for effectively promoting the charge separation kinetics of the CdS photocatalyst via the synergistic strategy of phase junction,Schottky junction,and photothermal *** difference in atomic configuration between cubic-CdS （c-CdS） and hexagonal-CdS （h-CdS） leads to effective charge separation through a typical Ⅱ charge transfer mechanism,and plasmonic Schottky junction further extracts the electrons in the hc-CdS phase junction to realize gradient charge ***,the photothermal effect of Mo2C@C helps to expand the light absorption,accelerate charge transfer kinetics,and reduce the hydrogen evolution energy *** carbon layer provides a fast channel for charge transfer and protects the photocatalyst from *** a result,the optimized hc-CMC photocatalyst exhibits a significantly high photocatalytic H2production activity of 28.63 mmol/g/h and apparent quantum efficiency of 61.8%,surpassing most of the reported *** study provides a feasible strategy to enhance the charge transfer kinetics and photocatalytic activity of CdS by constructing plasmonic tandem heterogeneous junctions.

关键词： Heterojunctions LSPR Photocatalyst Phase junction Schottky junction Photothermal effect

Vector meson's spin alignments in high energy reactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 5-20页

作者： Jin-Hui Chen Zuo-tang Liang Yu-Gang Ma Xin-Li sheng Qun Wang Key Laboratory of Nuclear Physics and Ion-beam Application (MoE) Institute of Modern PhysicsFudan University Institute of Frontier and Interdisciplinary Science Key Laboratory of Particle Physics and Particle Irradiation (MOE)Shandong University INFN-Firenze Department of Modern Physics University of Science and Technology of China School of Mechanics and Physics Anhui University of Science and Technology

The global spin alignment of vector mesons has been observed by the STAR collaboration at the Relativistic Heavy Ion Collider （RHIC） at Brookhaven National Laboratory （BNL）.It provides a unique opportunity to probe the correlation between the polarized quark and antiquark in the strongly coupled quark-gluon plasma （sQGP） produced in relativistic heavy ion collisions,opening a new window to explore the properties of s *** addition,spin alignments of vector mesons have also been observed in other high-energy particle collisions such as e+e-annihilations at high energies where hadron production is dominated by quark fragmentation *** results obtained are quite different from those obtained in heavy ion collisions where quark coalescence/combination mechanism dominates suggesting strong dependence on hadronization *** comprehensive studies in different hadronization processes are *** this article,we present a brief review of theoretical and experimental advances in the study of vector meson’s spin alignments in a variety of high-energy particle collisions,with emphasis on hadronization mechanisms.

关键词： vector meson spin alignment global polarization relativistic heavy ion collisions fragmentation

Overview of in-situ oxygen production technologies for lunar resources

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 233-255页

作者： Youpeng Xu sheng Pang Liangwei Cong Guoyu Qian dong Wang Laishi Li Yusheng Wu Zhi Wang College of Materials Science and Engineering Shenyang University of TechnologyShenyang 110870China CAS Key Laboratory of Green Process and Engineering National Engineering Research Center for Green Recycling of Strategic Metal ResourcesInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China Innovation Academy for Green Manufacture Chinese Academy of SciencesBeijing 100190China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China

The rich resources and unique environment of the Moon make it an ideal location for human expansion and the utilization of extraterrestrial ***,crucial for supporting human life on the Moon,can be extracted from lunar regolith,which is highly rich in oxygen and contains polymetallic *** oxygen and metal extraction can be achieved using existing metallurgical ***,the ample reserves of water ice on the Moon offer another means for oxygen *** paper offers a detailed overview of the leading technologies for achieving oxygen production on the Moon,drawing from an analysis of lunar resources and environmental *** delves into the principles,processes,advantages,and drawbacks of water-ice electrolysis,two-step oxygen production from lunar regolith,and one-step oxygen production from lunar *** two-step methods involve hydrogen reduction,carbothermal reduction,and hydrometallurgy,while the one-step methods encompass fluorination/chlorination,high-temperature decomposition,molten salt electrolysis,and molten regolith electrolysis(MOE).Following a thorough comparison of raw materials,equipment,technology,and economic viability,MOE is identified as the most promising approach for future in-situ oxygen production on the *** the corrosion characteristics of molten lunar regolith at high temperatures,along with the Moon's low-gravity environment,the development of inexpensive and stable inert anodes and electrolysis devices that can easily collect oxygen is critical for promoting MOE technology on the *** review significantly contributes to our understanding of in-situ oxygen production technologies on the Moon and supports upcoming lunar exploration initiatives.

关键词： lunar resources in-situ oxygen production space metallurgy molten lunar regolith electrolysis

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