共价

The present work was to study the effect of synthetic bioactive RGD peptides on the endothelialization of polyethylene terephthalate surface.

本文在聚酯薄膜表面共价结合人工合成的RGD三肽，研究RGD在材料内皮化过程中的作用。

Methods DNA probe with thiol group in 5' terminus was covalently linked to the surface of gold membrane by self-assembled monolayer technique, Changes of the electrochemical parameters and microscopic construction in gold membrane were observed with cireled voltammeter and scanning tunnel microscopySTM...

其中 ，巯基化合物SAM是研究得最为深入的体系。本研究将 5'端带有巯基的寡聚核苷酸探针通过SAM技术共价交

The structure reveals the catalytic intermediate of DAPDC, in which L-lysine is covalently bonded to PLP to form an external aldimine. This conformation provided the best insight to date on the substrate binding and catalytic mechanism of DAPDC. It also supplied valuable clues for designing specific DAPDC inhibitors.

通过分析我们发现这是DAPDC酶家族的第一个反应中间态结构，即反应产物L-赖氨酸与辅酶PLP共价结合形成了外源醛亚胺的构象，这为了解DADPC的底物结合情况及催化机理提供了迄今为止最详细深入的结构信息，也为针对DAPDC设计特异性抑制剂提供了宝贵的线索。

Glucose an aldohexose, exists as D and L forms. The furthest asymmetric carbon from the aldehyde group is C-5. D-glucose is called D because the configuration of the atoms bonded to C-5 is the same as for D-gly- ceraldehyde. Similarly D-fructose﹙a ketohexose﹚ is designated D because the configuration

环状结构：醛基或酮基跟一个羟基反应共价闭合，形式上一个糖的醛基和羟基反应生成了一个半缩醛，而一个酮基与一个羟基反应生成一个半缩酮，在同一分子内这个反应能进行，单糖的开链式形成了糖环，葡萄糖环形成一个六碳环。

The most commonly used method for the covalent binding of biomolecules onto 1-D nanostructures is through the diimide-activated amidation of carboxylic acid terminated nanostructures.

最常用的方法是通过端羧酸基纳米结构的二酰亚胺活化氨基化合物来进行生物分子与1-D纳米结构的共价结合。

The most commonly used method for the covalent binding of biomolecules onto 1-D nanostructures is through the diimide-activated amidation of carboxylic acid terminated nanostructures.

在一维纳米结构上共价结合生物分子最常用的做法是对纳米结构的C端进行二酰亚胺活化。

The conjugation of MMS and Ab (ready for Reagent 1, R1): Chose the 3μm diameter Carboxyl MMS and use the carbodiimide cross-link technique activate the MMS with EDC and NHS in different concentration, then linked mice anti-HBsAg-IgG and mice anti-HCcAg-IgG on them.

磁微粒的活化及其与抗体的连接：选择粒径3μm的羧基化磁微粒，采用碳二亚胺共价交联法，在活化剂EDC与NHS的不同浓度组合条件下活化磁微粒，选择最适的活化剂浓度组合。

Methods RGD peptide were through direct covalent linkage attached on micro-channel surface with 1-ethyl-3- 3-dimethylaminopropyl carbodiimide hydrochloride and N-hydroxysuccinimide to A549 cells.

方法采用化学共价连接的方法固定RGD多肽，建立由流体控制系统、免疫反应系统构成的细胞识别芯片系统，用于细胞的筛选/捕获；选用不同密度的细胞进行进样试验，考察不同细胞密度对通道内细胞数量的影响，并讨论不同的孵育时间对细胞捕获的影响。

Methods RGD peptide were through direct covalent linkage attached on micro-channel surface with 1-ethyl-3- 1 3-dimethylaminopropyl carbodiimide hydrochloride and N- hydroxysuccinimide to A549 cells.

采用化学共价连接的方法固定RGD多肽，建立南流体控制系统、免疫反应系统构成的细胞识别芯片系统，用于细胞的筛选／捕获；选用不同密度的细胞进行进样试验，考察不同细胞密度对通道内细胞数量的影响，并讨论不同的孵育时间对细胞捕获的影响。

Currently, two kinds of reactions are often employed, including derivation of carboxy groups and direct addition.

目前CNTs的共价修饰主要通过两类反应来实现：羟基的衍生反应和直接加成反应。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。