They had suppressed the cathodic process of carbon steel electrode. Their inhibition performance was also related with their molecule stereo conformation and electron configuration. Four of bis-(1, 1'-benzotriazoly)-α,β-diamide compounds linked via-CO 〓CO-chain were synthesized and certified by IR and 〓H-NMR. The minimum energy conformations of these compounds were obtained by MM2 forcefield program. The two benzotriazole moiety in BBT1 was more planar than in other compounds. This was beneficial in increasing the inhibition effects of BBT1. In 0.5M H〓SO〓 solution, BBT1 suppressed anodic corrosion reaction. In 3%NaCl solution, BBT1 suppressed both cathodic and anodic corrosion reactions. 1- [ (1'-imidazolly)-methyl] benzotriazole was synthesized by Mannich reaction.

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Level of serum D\|dimer is obviously increase in pati...

血栓性疾病患者血 D-二聚體明顯升高，它是血栓性疾病的一個理想監(jiān)測指標(biāo)影音先锋一区二区三区无码电影网。

A series of the ligands including 6-bromo-piperonal dimethyl acetal, bis (9-fluorenyl) silane, and the dimer of indene have been synthesized and characterized.

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The tryptophan residues play important roles in DNA photoreactivation catalyzed by CPD photolyases. We have investigated the action mechanism concerning Trp in DNA photoreactivation, and obtained the results as follows: 1 We proposed a mechanism of photosensitized splitting of CPDs by Trp and Trp-containing peptides. 2 Quantum yields of splitting of the model compounds that a Trp linked covalently a CPD were obtained under 290 nm light in various solvents, these values changing with solvent, range from 0.01 to 0.5. 3 Utilizing pulse radiolysis technique, splitting processes were observed in aqueous solution of the CPDs with hydrated electron and some oxidative species (such as hydroxyl radical, bromic radical and azide radical), and obtained their rate constants. In the case of interaction between CPD and hydrated electron, splitting of the CPD anion, and pyrimidine anion transfer an electron to FAD or Rf, were observed. The process rate was slower one order more than that in photolyase. Minor, but highly mutagenic UV-light-induced lesions are (6-4) photoproducts, which are repaired by (6-4) photolyases. These enzymes, discovered in 1993, are not well characterized and their mechanism is still under investigation.

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The UV and IR spectroscopic studies of the monomer films showed that the photoreaction ratio of monomer (about 50%) was higher than the corresponding photosensitive polymer (about 10%, PVCi). The polarized IR spectra proved that obvious anisotropic absorption was displayed in the irradiated photosensitive film. With polarizing microscopy method, we found that these kinds of photoalignment films exhibited good alignment ability, and the stability of the photoalignment film could reach about 100℃. 2 A photosensitive self-assembled monolayer was fabricated that contained photo-cycloadditable groups, such as, coumarin and cinnamate. The reaction process were detected by contact angle method because the IR absorption of monolayer was very weak. The photosensitive self-assembled monolayer promote uniform alignment of nematic liquid crystals by LPUV, and it thermal stability could reach about 130℃. 3 A cationic bolaform amphiphiles was synthesized that had two photosensitive double bonds, and can be polymerized by ultraviolet. A layer-by-layer self-assembled deposition film was prepared in aqueous solution by using this material and poly (sodium 4-styrenesulfonate). The UV-Vis. spectra proved that the multilayers film was uniform and layer-by-layer. When LPUV irradiated the film, the photopolymerizable double bond underwent [2+2] cycloaddition, and the production of the reaction distributed along the polarized direction of incident LPUV. Polarized UV-Vis. spectra indicated that the irradiated self-assembled multiplayer film was anisotropic, and the dichromic ration is about 0.09, it is higher than the spin-coating method of photosensitive polymer or monomer. We used this anisotropic film as alignment layer of nematic liquid crystals, and obtained a uniform and stability alignment result, the static contrast ratio is about 100, which is very close to application of liquid crystal device. This thesis is an instance that the photochemical material was used in the physics region of liquid crystals, the route that was from photosensitive monomer, self-assembled monolayer film to self-assembled multiplayer film was undergone, by this logical research method photoailgnment of liquid crystal was extended and consummated.

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The method uses first phase law to determine 63 DVT patient contrasts normally with 30 the F Ⅻ C of the group, use law of thing of the heart that deliver quality to detect at the same time zymogen of serous fine dissolve is active , law of enzymatic couplet immunity measures sex of antigen of content of activation of zymogen of methodize fine dissolve (depressor of content of activation of zymogen of dissolve of T-PAAg), fine - 1 antigen sex (PAI-1Ag) and immunity compare chaotic law to determine serous D-2 gets together body content.

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The synthesis of the phthalide dimers and solid-support of the chiral diamines were also concerned.

此外色一级A片视频在线播放网站大全，我們對于合成苯酞二聚體類化合物和手性二胺的固載化進行了嘗試。

CRP is the member of pentraxins family which two faces of pentamer form a special bi-phase structure: one face is ligand recognition phase; the other face is effector phase. CRP can connect E-LDL with endothelial cells, thus can induce deposition of lipid in intima and activate complement.

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However, fully consideration of special structure and physiological function of CRP is critical to investigate whether CRP provide protect effect or pathogenic effect in the progression of atherosclerosis. CRP is a member of pentrxins family, which consists of five identical, noncovalently associated 23-kDa protomers arranged symmetrically around a central pore with a 102 A external diameter. Each protomer has a recognition face with a phosphocholine binding site consisting of two coordinated calcium ions adjacent to a hydrophobic pocket. The opposite face of the pentamer is the effector face, where complement Clq binds and Fc receptors are presumed to bind. A cleft extends from the center of the protomer to the central pore of the pentamer. Both faces ofpentamer form a special bi-phase structure: one face is the ligand recognition phase, which can recognize apoptosis cells and enzyme modified low density lipoprotein in which PCh is exposed.

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According to structure analysis, the contents of α-helix and dimer structure in refolded eMDH were increased by the cooperation, and eMDH activity was enhanced.

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cohesive energy：內(nèi)聚能量

(一)內(nèi)聚性(二)內(nèi)聚力 cohesion | 內(nèi)聚能量 cohesive energy | 內(nèi)聚力 cohesive force; cohesion

Dilution method：稀釋法 稀釋法

diluent expectorants 稀釋性祛痰藥 稀釋性祛痰藥 | dilution method 稀釋法 稀釋法 | dimer 二聚體 二聚體

dimer：二聚體

摘要: 本文研究了水溶液中meso-四(4-磺苯基)卟啉(TPPS)二聚體(Dimer)的各種影響因素和它的電化學(xué)性質(zhì). 提出了二聚體的模型, 說明了水溶性金屬卟啉(Cu^2+,Zn^2+, Mn^2+-TPPS)循環(huán)伏安圖上的一對小尖峰是二聚體在汞電極上吸附還原和氧化的結(jié)果.

dimerism：二聚性

二聚模型 dimer model | 二聚性 dimerism | 二聚[作用] dimerization

dimerization：二聚作用

二聚性 dimerism | 二聚[作用] dimerization | 減五[音]度 diminished fifth

PEG：聚乙二醇

本發(fā)明公開了制備攜帶羧基官能團水溶性非肽類聚合物,特別是羧酸官能化的聚(乙二醇)(PEG)聚合物的方法,以及這些方法的產(chǎn)物. 通常,使酯試劑R(C=O)OR′(其中R′為叔基并且R包括官能團X)與水溶性非肽類聚合物POLY-Y(其中Y與X反應(yīng)形成共價鍵的官能團)反應(yīng)形成聚合物的叔酯,

pen：聚萘二酸乙二醇酯

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thymine dimer, TT：胸苷酸二聚體

性細(xì)胞基因治療 germ line gene therapy | 胸苷酸二聚體 thymine dimer, TT | DNA修復(fù) DNA repairing

heterologous desensitization：異源性失敏

heterodimeric membrane protein 異二聚體膜蛋白 | heterologous desensitization 異源性失敏 | heterophile antibody 異嗜性抗體

polyvoltine：多化性蠶品種

聚偏二氟乙烯纖維 polyvinylidene fluoride fibre | 多化性蠶品種 polyvoltine | 小花嗶嘰 pommpadour serge