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金属胶束催化VIII:肟基铜(Ⅱ)配合物催化羧酸酯水解反应研究

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四川大学学报（自然科学版） 2004年第1期41卷 148-154页

作者：蒋炳英黄忠蒋维东谢飞胡常伟曾宪诚四川大学化学学院四川成都610064

合成并表征了单核和双核肟基铜(Ⅱ)配合物,研究了这两种配合物在不同胶束体系中催化羧酸酯水解的动力学,用相应的动力学模型处理得到了相关的动力学和热力学参数.研究结果表明,两种配合物在阳离子表面活性剂CTAB(十六烷基三甲基溴化铵)... 详细信息

合成并表征了单核和双核肟基铜(Ⅱ)配合物,研究了这两种配合物在不同胶束体系中催化羧酸酯水解的动力学,用相应的动力学模型处理得到了相关的动力学和热力学参数.研究结果表明,两种配合物在阳离子表面活性剂CTAB(十六烷基三甲基溴化铵)所生成的胶束溶液中催化PNPP(对硝基苯基α 吡啶甲酸酯)和PNPA(对硝基苯基乙酸酯)水解的活性高于在非离子表面活性剂胶束Brij35(聚氧乙烯(23)十二烷基醚)中的催化作用;单核Cu(II)配合物在金属胶束相中催化PNPP水解和双核Cu(II)配合物在金属胶束相中催化PNPA水解的一级速率常数与它们在缓冲溶液中自发水解的速率常数相比,kN分别提高了大约2074.倍和32014..

关键词：肟基配合物羧酸酯水解动力学处理

An Amperometric Immunosensor for α-fetoprotein Based on Antibody Coated Nano ZrO2-Au-poly Lysine Composite Membrane Modified Electrode

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An Amperometric Immunosensor for α-fetoprotein Based on Ant...

2010 First International Conference on Cellular,Molecular Biology, Biophysics and Bioengineering(CMBB 2010)

作者： Yuanzhao Wu Futao Hu Ning Gan Jianguo Hou Tianhua Li Yuting Cao Lei Zheng faculty of materials science and chemical Engineering Ningbo university Ningbo 315211 {4.

One novel amperometric immunosensor for α-fetop- rotein was fabricated which was modified by antibody immobilized on nano ZrO2-Au-polyLysine composite membrane. Firstly, the deoxyribonucleic acid –phenoxyacetic acid isoniazid- schiff base Co（II） complex （DNA-CoL） mixture film was casted on surface of multi carbon nanotubes（MWCNTs） modified glassy carbon electrode（GCE/CNTs/DNA-CoL）. Then the composite nanoparticles （ZrO2-Au-pLL） was employed to immobilize the antibody of α-fetoprotein（AFP） to produce the probes（ZrO2-Au- pLL-anti AFP） for AFP. Finally the probes were modified on GCE/CNTs/DNA-CoL through the specific connection between DNA and ZrO2 to form a novel nanocomposite membrane immunosensor for AFP（GCE/CNTs/ DNA-CoL/ZrO2-Au–pLL- anti AFP）. The function of immunosensor was investigated by scanning electron microscopy （sEM）, cyclic voltammetry（CV）, differential pulse voltammety （DPV） and electrochemical impedance spectroscopy experiment （EIs）. The results indicated that combining the advantages of the MWNTs-DNA material and ZrO2-Au-pLL-anti AFP nano probes, the immunosensor with excellent sensitivity and selectivity to AFP was prepared successfully. The modified electrode was sensitive to AFP with a linear relationship between 0.05 and 10 ng · mL-1 and a correl- ation coefficient of 0.9905. The detection limit at a signal to noise ratio of 3 was 0.01 ng·mL-1 under the optimal conditions. The described immunosensor preparation and immunoassay methods offer promise for simple and cost-effective analysis of AFP in serum samples.

关键词： cyclic voltammetry (CV) zirconium dioxide nanoparticles gold colloid poly-Lysine (pLL) α-fetoprotein (AFP)

Carbonation of Concrete Containing Highly Active Pozzolanic material

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Carbonation of Concrete Containing Highly Active Pozzolanic ...

The 6th International symposium on Cement & Concrete and Canmet/Aci International symposium on Concrete Technology for sustainable Development

作者： Q.G. Feng1, 2*, L.F. Yang3,Y. Yang1, 4. Z.F. Tong1, Z. Chen1, W. Chen1, H. Yamamichi2, s. sugita2 and M. shoya2 1)school of Chemistry and chemical Engineering, Guangxi university, Nanning, 530004. china 2)Department of Environmental and Civil Engineering, Hachinohe Institute of Technology, 88-1, Myo, Hachinohe 031-8501, Japan 3)College of Civil Engineering and Architecture, Guangxi university, Nanning, 530004. china 4.Guangxi Building materials science Research & Design Institute, Nanning, 530022, china

In the design of concrete structures, carbonation is one of the many important factors determining the service life of a concrete structure. In this study, the carbonation process of concrete containi

关键词： carbonation, concrete, rice husk ash, silica fume, Ca(OH)2。

TWO NEW sTEROIDAL ALKALOIDs FROM BULBs OF FRITILLARIA LICHUANENsIs

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TWO NEW STEROIDAL ALKALOIDS FROM BULBS OF FRITILLARIA LICHUA...

第八届全国中药和天然药物学术研讨会与第五届全国药用植物和植物药学学术研讨会

作者： Hui-Fang Pi, Han-Li Ruan, Yong-Hui Zhang, Ji-Zhou Wu (faculty of Pharmaceutical sciences, Tongji Medical College of Huazhong university of science and Technology, wuhan 4.0030, china)

Two new steroidal alkaloids lichuanine (1) and lichuanisinine (2) were isolated from the bulbs of Fritillaria Lichuanensis P. Li et C.P. Yang. Their structures were determined to be (205, 25R)-5□.. 14.□-cevanine-3□, 6D-diol (1) and (205, 25s)-5□, 14.D-cevanine-3□, 6□-diol-N-Oxide (2) by means of spectral analysis and chemical evidence.

关键词： Fritillaria Lichuanensis Liliaceae steroidal alkaloid Lichuanine Lichuanisinine

study of the Physical and Mechanical Properties of Titanium in Volume by the MEAM Method

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Modeling and Numerical simulation of material science 2024年第1期14卷 58-68页

作者： Yahnn J. Mighensle Mimboui Alain s. Dzabana Honguelet Timothée Nsongo faculty of science and Technology Marien Ngouabi University Brazzaville Congo Research Group on Physical and chemical Properties of materials Brazzaville Congo Association Alpha sciences Beta Technologies Brazzaville Congo geological and Mining Research Centre Brazzaville Congo

In this work we present the results of our study on the physical and mechanical properties of titanium in volume. The work consisted in determining its physical and mechanical properties under different crystallographic structures (HCP, FCC, BCC and sC) using the Modified Embedded Atom Method (MEAM) and the MEAM potential of titanium. We used the LAMMPs calculation code, based on classical molecular dynamics, to determine the most stable structure of titanium, which is the hexagonal compact structure (HCP) with crystal parameters a = 2.952 Å and c = 4.821 Å and a cohesion energy of -4.87 eV. This structure is seconded by the cubic centred structure (BCC) with a lattice parameter a = 3.274.Å and a cohesive energy of -4.84.eV. It was shown that titanium can crystallise into a third structure which is the face-centred cubic (FCC) structure with a lattice parameter a = 4.14. Å and a cohesive energy of -4.82 eV. The results obtained in this study were compared with the theoretical results and showed considerable agreement.

关键词： MEAM Potential LAMMPs Code Molecular Dynamics Elastic Constants Modules Ovito

Three Novel Microporous Metal-organic Frameworks for theLuminescent sensing of Ln3+ Cations and Rapid Adsorption of Iodine

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Three Novel Microporous Metal-organic Frameworks for theLumi...

中国化学会第六届全国结构化学学术会议

作者： Lei Chen,Wen-Wen He,shun-Li Li,Ya-Qian Lan~*,Zhong-Min su~* Institute of Functional material Chemistry,faculty of Chemistry,Northeast Normal university,Changchun 130024.P.R.china

＜正＞Metal-organic frameworks（MOFs） have been the focus of great interest due to not only their structural and chemical diversities but also potential structure-related applications,such as luminescence,gas storage, catalysis,separations and drug delivery.2 In this work,we report three novel MOFs,IFMC-10 and IFMC-11 were synthesized based on zinc cations and length-adjusted tripodal tricarboxylate ***

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High-performance Organic Thin-film Transistors Fabricated from a Polymer semiconductor in Environmentally Benign solvents

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High-performance Organic Thin-film Transistors Fabricated fr...

全国第八届有机固体电子过程暨华人有机光电功能材料学术讨论会

作者： Jun Li~(a,c,*),Chang Ming Li~b,Jingui Qin~c,s.Ong Beng~(a,b) (a Institute of materials Research & Engineering(IMRE),AsTAR,117602,singapore) (b school of chemical & Biomedical Engineering and school of material science & Engineering,Nanyang Technological university,6374.7,singapore) (c Chemistry Department,Hubei Key Lab on Organic and Polymeric Optoelectronic materials,wuhan university,wuhan 4.0072,P R china)

A new polymer semiconductor,poly(2,6-bis(3-alkylthiophen-2-yl)dithieno[3,2-b;2’,3’-d]thiophene)s(PBTDT) has been developed,which not only offers high FET mobility but also other equally important processing and air-stable performance attributes including room-temperature processability in environmentally friendlier non-chlorinated *** of nanoparticle dispersion of this new polymer semiconductor in an environmentally

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Moisture Resistance and High H2 storage in a Metal-organic Framework Decorated by Hydrophobic CH3-group

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Moisture Resistance and High H2 Storage in a Metal-organic F...

中国化学会第六届全国结构化学学术会议

作者： Guang-sheng Yang,Ya-Qian Lan,Xin-Long Wang and Zhong-Min su~* Institute of Functional material Chemistry,Key Lab of Polyoxometalate science of Ministry of Education,faculty of Chemistry,Northeast Normal university,Changchun,130024. People’s Republic of china

Metal-organic frameworks(MOFs) have been exploited extensively,driven by the desire to acquire practical porous materials with different function,such as gas adsorption, separation and ***,weak stability of general MOFs limited their application as functional *** previous works reveal that hydrophobic CH group can improve the moisture stability of *** this work,we report a new MOF(IFMC-28)

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synthesis of 9-(5-Pentyl-2-furyl)nonanoic Acid

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Chinese chemical Letters 1999年第9期10卷 737-738页

作者： Hu Ri PIAOI Kouji NAGAYAMA Akira TANAKA(1 school of Pharmacy. Yanbian university,Yanji,1330002faculty of Pharmaceutical sciences, Josai university, saitama Japan 350-02) Yanbian Univ Sch Pharm Yanji 133000 Peoples R China Josai Univ Fac Pharmaceut Sci Sakado Saitama 35002 Japan

Naturally occurring 9-(5-pentyl-2-furyl) nonanoic acid which was synthesized through five steps in about 20% overall yield by using 5-trimethylsilyl-2-furancarboxaldehyde as a starling material.

关键词： 9-(5-pentyl-2-furyl) nonanoic acid furanoid fatty acid acyldesilylation synthesis