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Chinese Chemical Letters 2003年第9期14卷 952-954页

作者： huazhang WenRuiJIN StateKeyLaboratoryofMicrobialTechnology ShandongUniversityJinan250100 SchoolofChemistry-andChemicalEngineering ShandongUniversityJinan250100

A novel approach for analysis of amino acids in individual erythrocytes was established. In this method, the derivatization reagent was introduced into the living cells by electroporation. After derivatization, the am... 详细信息

关键词： Capillary electrophoresis laser-induced fluorescence detection single cell analysis amino acid.

Capillary Electrophoretic Immunoassay with Laser-induced Fluorescence Detection for Interferon-gamma

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Chinese Chemical Letters 2004年第1期15卷 121-122页

作者： huazhang HaiMingWEI WenRuiJIN SchoolofChemistryandChemicalEngineeringandStateKeyLaboratoryofMicrobialTechnology ShandongUniversityJinan250100 ShandongAcademyofMedicalSciences Jinan250001

Capillary electrophoretic immunoassay with laser-induced fluorescence detection for recombinant human interferon-gamma (IFN-g) was established. The limits of detection for three forms of IFN-g are 6.9 ng/L, 5.7 ng/L ... 详细信息

关键词： Capillary electrophoretic immunoassay interferon-gamma.

Indium-mediated Facile Synthesis of (6-Chloropyridine-3-yl) methyl Heterocyclic Thioether Derivatives in Aqueous Media

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Chinese Chemical Letters 2004年第10期15卷 1140-1142页

作者： BaoAnSONG GangLIU DeYuHU huazhang ResearchandDevelopmentCenterofFineChemicals GuizhouUniversityGuiyang550025

A series of substituted (6-chloropyridine-3-yl)methyl heterocyclic thioether derivatives were prepared by indium mediating in water. The preliminary biological tests showed that compound 3d exhibited good antiviral ac... 详细信息

关键词： Thioether green synthesis antiviral activity indium.

La_2Ce_2O_7 supported ruthenium as a robust catalyst for ammonia synthesis

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Journal of Rare Earths 2019年第5期37卷 492-499页

作者： Wenfeng Han Zhi Li huazhang Liu Institute of Industrial Catalysis Zhejiang University of Technology

La_2Ce_2O_7 nanoparticles were prepared by citric acid complexation method followed by calcination at varied temperatures. Then, supported with 4 wt% Ru, they were evaluated as the catalysts for ammonia synthesis under conditions similar with industry. With La_2Ce_2O_7 being calcinated at 700 or 800℃, the experimental results indicate that the Ru/La_2Ce_2O_7 catalyst exhibits much higher ammonia concentration or ammonia synthesis rate than that of Ru/CeO_2 and Ru/La_2O_3. In addition, Ru/La_2Ce_2O_7 possesses high stability under over-heating test. In the absence of any promotor, ammonia concentration of Ru/La_2Ce_2O_7 catalyst approaches 14% at 450℃, GHSV of 10000 h^(-1) and pressure of 10 MPa. The rate-determining step of ammonia synthesis, dissociation of N_2 is significantly facilitated by the strong metalesupport interaction(SMSI) between Ru and La_2Ce_2O_7. Due to the interaction, La_2Ce_2O_7 tends to donate electrons to Ru,resulting in the high electron density over the surface of Ru active sites which is favorable for the dissociation of N_2. Consequently, high activity is achieved.

关键词： Ammonia synthesis Ruthenium La2Ce2O7 Activation energy Nanoparticles Rare earths

Synthesis of Cu3.8Ni/CoO and Cu3.8Ni/MnO nanoparticles for advanced lithium-ion battery anode materials

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Nano Research 2017年第3期10卷 1033-1043页

作者： Jaewon Lee huazhang Zhu Wei Deng Yue Wu School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 200235 China Department of Chemical and Biological Engineering Iowa State University 2114 Sweeney Hall Ames IA 50010 USA School of Chemical Engineering Purdue University 480 Stadium Mall Drive West Lafayette IN 47907 USA

We synthesized Cu3.8Ni/CoO and Cu3.8Ni/MnO nanoparticles via an easy and scalable solution synthesis. The synthesized Cu3.8Ni/CoO and Cu3.8Ni/MnO nano- particles were annealed to remove the organic surfactants without phase transitions or side reactions. Electrons can be transferred via metallic Cu3.8Ni, which will not react with lithium ions. The heterogeneous structures of Cu3.8Ni/CoO and Cu3.8Ni/MnO nanopartides could enhance the lithium ion mobility and improve the life cycle, and these materials are therefore promising candidates as high- power-density and high-energy-density anode materials for lithium-ion batteries in diverse applications, such as electrical vehicles.

关键词： metal oxide nanoparticles lithium ion battery metallic

Easy synthesis of iron doped ordered mesoporous carbon with tunable pore sizes

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Journal of Natural Gas Chemistry 2012年第3期21卷 275-281页

作者： Haodong Tang Guojun Lan Jian Zhong huazhang Liu Ying Li Institute of lndustrial Catalysis Zhejiang University of TechnologyHangzhou 310032ZhejiangChina

Precise control of the pore sizes for porous carbon materials is of importance to study the confinement effect of metal particles because the pore size in nanosize range will decide the physical and chemical properties of the metal nanoparticles. In this paper, we report a new approach for the synthesis of iron doped ordered mesoporous carbon materials with adjustable pore size using Fe-SBA-15 as hard template and boric acid as the pore expanding reagent. The pore size can be precisely adjusted by a step of 0.4 nm in the range of 3-6 nm. The carbonization temperature can be lowered to 773 K due to the catalytic role of the doped iron. The present approach is suitable for facile synthesis of metal imbedded porous carbon materials with tunable pore sizes.

关键词： Fe-SBA-15 iron mesoporous carbon semi-graphitic carbon adjustable pore size

EFFECT OF OXIDIZED-LDL ON NF-κB NUCLEAR TRANSLOCATION IN AORTIC SMOOTH MUSCLE CELLS ORIGINATED FROM RATS OF DIFFERENT AGES

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Chinese Medical Sciences Journal 2005年第2期20卷 112-115页

作者： Jun-huazhang LiZhou Hong-chaoYin Pei-maoLiu huazhang Ming-pengShe DepartmentofPathology InstituteofBasicMedicalSciencesChineseAcademyofMedicalSciences＆PekingUnionMedicalCollegeBeijing100005

Objective To investigate the molecular mechanism of atherosclerosis that related to age. Methods Immunohistochemistry staining and Western blot were adopted to determine the nuclear translocation of nuclear factor-kappa B (NF-κB) and expression of platelet-derived growth factor B (PDGF-B) in smooth muscle cells (SMCs) co-cultured with low density lipoprotein (LDL), oxidized LDL (ox-LDL), and ox-LDL+high density lipoprotein (HDL) originated from rats of 2 and 10 months old respectively. Fat stain was used to identify the lipid intake in SMCs. Results The optimal stimulation time of ox-LDL to SMCs was 12 hours. NF-κB intensity increased in most nuclei of SMCs that originated from rats of either 2 or 10 months old co-cultured with ox-LDL. The intensity of NF-κB and the amount of intracellular lipid taken in SMCs were more obvious in cells from 10-month-old rats than from the younger ones. Change of PDGF-B expression in SMCs was not remarkable in each group of rats. Conclusions The 10-month-old rats are more susceptive to ox-LDL than 2-month-old rats in activating nuclear transloca- tion of NF-κB. Maybe this is one of the important reasons contributing to the difference between the older and younger rats on the initiation and development of atherosclerosis lesion. Expression of PDGF-B is not associated with the activity of nuclear translocation of NF-κB.

关键词： oxidized low density lipoprotein nuclear factor-kappa B platelet-derived growth factor B smooth muscle cell

Construction and identification of recombinant vectors carrying herpes simplex virus thymidine kinase and cytokine genes expressed in gastric carcinoma cell line SGC7901

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World Journal of Gastroenterology 2004年第1期10卷 26-30页

作者： Jian-huazhang Ming-XiWan Jia-YingYuan Bo-RongPan DepartmentofBiomedicalEngineering SchoolofLifeScienceandTechnologyXi'anJiaotongUniversity28WestXianningRoadXi'an710049ShaanxiProvinceChina DepartmentofUltrasonicDiagnosis XijingHospitalFourthMilitaryMedicalUniversity127WestChangleRoadXi'an710033ShaanxiProvinceChina DepartmentofOncology XijingHospitalFourthMilitaryMedicalUniversity127WestChangleRoadXi'an710033ShaanxiProvinceChina DepartmentofBiomedicalEngineering SchoolofLifeScienceandTechnologyXi'anJiaotongUniversity28WestXianningRoadXi'an710049ShaanxiProvinceChina

AIM: To construct and identify the recombinant vectors carrying herpes simplex virus thymidine kinase (HSV-TK) and tumor necrosis factor alpha (TNF-α) or interleukin-2 (IL-2) genes expressed in gastric carcinoma cell line SGC7901. METHODS: The fragments of HSV-TK, internal ribosome entry sites (IRES) and TNF-α or IL-2 genes were inserted in a TK-IRES-TNF-α or TK-IRES-IL-2 order into pEGFP-N3 and pLXSN to generate the therapeutic vectors pEGFP-TT,pEGFP-TI, pL(TT)SN and pL(TI)SN respectively, which were structurally confirmed by the digestion analysis of restriction endonuclease. The former two plasmids were used for the transient expression of recombinant proteins in the target cells while pL(TT)SN and pL(TI)SN were transfected into SGC7901 cells by lipofectamine for the stable expression of objective genes through G418 selection. The protein products expressed transiently and stably in SGC7901 cells by the constructed vectors were confirmed by fluorescent microscopy and Western blot respectively. RESULTS: The inserted *** in all constructed plasmids were structurally confirmed to be consistent with that of the published data. In the transient expression, both pEGFP-TT and pEGFP-TI were shown expressed in nearly 50% of the transfected SGC7901 cells. Similarly, the G418 selected vectors PL(TT)SN and PL(TI)SN were confirmed to be successful in the stable expression of the objective proteins in the target cells. CONCLUSION: The constructed recombinant vectors in the present study that can express the suicide gene TK in combination with cytokines genes may serve as the potential tools to perform more effective investigations in future for the gene therapy of gastric carcinoma.

关键词：胃癌单纯性疱疹病毒胸腺密啶核苷激酶细胞因子 SGC7901细胞肿瘤坏死因子

Porous ternary complex metal oxide nanoparticles converted from core/shell nanoparticles

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Nano Research 2016年第4期9卷 996-1004页

作者： Jaewon Lee huazhang Zhu Gautam Ganapati Yadav James Caruthers Yue Wu School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai200235 China School of Chemical Engineering Purdue University 480 Stadium Mall Drive West Lafayette IN 47907 USA Department of Chemical and Biological Engineering Iowa State University Sweeney Hall Ames IA 50011 USA Present address: Energy Institute City College of New York New York NY 10031 USA

We demonstrate an easy and scalable low-temperature process to convert porous ternary complex metal oxide nanoparticles from solution-synthesized core^shell metal oxide nanopartides by thermal annealing. The final products demonstrate superior electrochemical properties with a large capacity and high stability during fast charging/discharging cycles for potential applications as advanced lithium-ion battery （LIB） electrode materials. In addition, a new breakdown mechanism was observed on these novel electrode materials.

关键词： ternary complex metal oxide porous nanopartide lithium-ion battery core/shell nanoparticles

Electrocatalytic organic transformation reactions in green chemistry: Exploring nanocrystals and single atom catalysts

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Nano Research 2024年第11期17卷 9326-9344页

作者： Ziwei Deng Yuexin Guo Zhiyi Sun Jie Lin huazhang Zhai Wenxing Chen School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 China School of pharmacy North China University of Science and Technology Tangshan 063210 China Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications Beijing Institute of Technology Beijing 100081 China Ningbo Institute of Materials Technology and Engineering Chinese Academy of Science Ningbo 315201 China

Organic synthesis chemistry plays a crucial role in supporting social sustainable development and finds widespread applications across various fields. Electrocatalysis, with its benefits of high efficiency, mild reaction conditions, controllability, and environmental friendliness, stands out as one of the most effective strategies for driving the transformation of organic substrates. In recent years, nanocrystals (NCs) and single atom catalysts (SACs) have garnered significant attention in the realm of electrocatalytic organic transformation. This article presents a comprehensive overview of the applications of NCs and SACs in electrocatalytic organic transformation. It delves into advanced catalysts for electrocatalysis of representative substrates, covering both anodic oxidation and cathodic reduction aspects, and addresses their synthesis, characterization, catalytic mechanism, and performance. The ultimate goal of this review is to serve as a valuable reference and a source of inspiration for further exploration into the development of more effective catalysts for electrocatalytic organic transformation.

关键词： single atom catalysts nanocrystals electrocatalysis organic transformation