查询词典 ligands

The macrocyclic polyamines are a kind of excellent ligands and have a substantially high binding affinity with transition metal ions. Macrocyclic polyamine metal complexes as enzyme models are widely used in chemical biology, medicine and gene therapy. 1, 4, 7, 10-tetrazacyclododecane is a representative macrocyclic polyamines compound and shows high binding affinity with transition metal ions, such as Zn, Cu and Co. Their metal complexes especially multinuclear complexes were widely used in DNA, RNA recognition.

大环多胺化合物是一类性质独特的优秀配体，具有良好的金属配位能力，其金属配合物作为人工酶模型广泛应用于核酸结构及功能研究、基因表达与调控、抗癌药物的研制等生物、化学和医学领域。1，4，7，10-四氮杂十二烷是典型的大环多胺化合物，对过渡金属离子Zn， Cu and Co有良好的配位能力，这些金属配合物特别是多核金属配合物被广泛应用于DNA识别中。

In the presence of an opioid analog,DAMA10(-13～10(-10)mol/L,human granulocytes and Mytilus edulis immunocytes were incubated with or without ligands at 37℃ for 10 minutes and at 23℃ for 20 minutes, respectively.

将人粒细胞和Mytilusedulis免疫细胞分别与不同浓度的类鸦片肽DAMA（10（－13）～10（－10）mol／L）或δ拮抗剂在37和23℃保温10～20min，用计算机显微图像分析法分析两种细胞的活化情况。

The yields were 67～89% and 61～90% respectively, and the ees were 66～99. 9% and 68～99. 9% respectively (except for trans-5-decene and ally naphthyl ether). With trans-stilbene as the substrate, chiral ligands and OsO〓 could be recovered and reused five times in the AD reaction with high catalytic activity and stereoselectivity.

4在PF〓/NMO体系中，将配体8和10分别用于八种烯烃的AD反应，配体、OsO〓和底物的摩尔比为0.02/0.015/1时，化学产率分别为67～91％和61～90％，ee值分别为66～99.9％和68～99.9％（反式-5-癸烯和萘基烯丙基醚除外）。

Using 〓-SCH 23390 (0.02-2 nM) and 〓-spiperone (0.02-2 nM) as ligands bound to 〓 and 〓 receptors in rat neostriatum, Scatchard curve showed aproximately a linear relationship for both 〓-SCH 23390 and 〓-spiperone binding, indicating they labeled separate one binding site.

应用〓和〓〓与大鼠新纹状体中〓、〓受体相结合，Scatchard作图显示均接近直线，表明分别标记受体的一个结合位点。

Wnt7a and Wnt7b encode two Wnt ligands produced by the neuroepithelium of the developing CNS coincident with vascular invasion.

Wnt7a和Wnt7b能够编码由与血管侵入保持一致的发育中枢神经系统产生的两种Wnt配合基。

Enkephalins, as endogenous ligands for opioid receptors, play an important role in nociceptive modulation.

脑啡肽作为阿片受体的一种内源生配体，在痛觉调节中发挥重要作用。

Synthesis and Functions of Noncyclic Ligands Having Plural Phenolic Hydroxyl Groups

带有多个羟基的非环状化合物及其金属配合物的合成研究

This section includes the nonindustrial preparation, purication, and reactions of inoganic substances:elements; inorganic acids, bases, and salts; synthetic minerals; inclusion compounds;charge-transfer complexes; coordination compounds containing inoganic and organic ligands;nonmetal and metalloid compounds; and carbon-containing compounds such as the carbon oxides, metal carbonyls, carbonates and transition metal carbonxylates.

这一章节涵盖了无机物的非工业制备、提纯、及反应：元素；无机酸、基团和盐类；合成矿物质；包藏复合物；转移电荷复合物；包含了无机和有机配合基的配位化合物；非金属与非金属化合物；以及含碳化合物，如碳氧化物、金属羰基、碳酸盐和含有羰基的过渡金属等。

N -(4-vinyl)benzylimidazole and its copolymer with octyl methacrylatewere synthesized and characterized,and oxygen—binding properties of cabaltporphyrincomplexes with imdazole ligands were studied.

研究了 N -(4-乙烯基)苄基咪唑单体及其与甲基丙烯酸辛酯共聚物的合成与表征，以及咪唑基有机或聚合物配位体与钴卟啉络合物的氧结合性能。

Octylene was synthesized via tetramerization of ethylene at the presence of a catalyst system consisted of chromium acaet as primary catalyst, methylaluminoxane as cocatalyst, bis amine as ligand under high pressure. The effects of different PNP ligands on catalyst activity and selectivity to 1-octene were investigated.

在乙酰丙酮铬、甲基铝氧烷、配体三元催化体系中，以乙烯为原料在高压下齐聚生成1-辛烯，主要考察N原子上取代基不同的PNP配体对催化剂活性及1-辛烯选择性的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。