羧基的

Free amino group and carboxy group on short peptide and amino acid can coordinate metal ion with vacant orbital to form chelate compound.

短肽和氨基酸的自由氨基上的-NH_2、羧基上的-C=O等均可与具空轨道的金属离子产生配位键，形成螯合物。

The cage effect of Gn potassium aqueous solution calculated by theα-cleavage photoreaction product distribution of substituted dibenzyl ketone was 14%, 18%, 22% and 42% for generations 1-4, respectively, which indicates that G4 takes a more close spherical shape with strong confine ability.

研究结果表明，羧基为末端基团的芳醚树枝形聚合物Gn (n = 1-4)钾盐水溶液笼效应随代数增加而增大，从G1到G4，笼效应分别为14%、18%、22%和42%，树枝形聚合物3代到4代从开放结构变为近乎球形的封闭结构的显著变化使G4表现出明显高于其他三代的笼效应。

METHODS: A model of T cell activation and proliferation was established by stimulated the cells with Con A.T cells were treated with different concentrations of CPT. The expression of CD69, the early marker of CD3(superscript +) T cell activation, was measured by FACS. The proliferation index was determined by carboxyl fluorescin diacetate succinmidyl ester by flow cytometry. The cell-cycle distribution was analyzed by propidium iodide staining.

以ConA刺激小鼠T淋巴细胞，建立小鼠T淋巴细胞活化、增殖的模型，以不同浓度的CPT作用于该模型，流式细胞术检测T细胞早期活化标志CD69分子的表达；以活体染料羧基荧光素乙酰乙酸染色流式细胞术分析CPT在ConA刺激下小鼠淋巴细胞的增殖相关指数；以碘化丙啶染色流式细胞术分析细胞周期的分布情况。

METHODS: After stimulated with Con A, T cells were treated with different concentrations of TMB-8 alone and its combination with cyclosporine A. The expression of CD69, the early marker of CD3(superscript +) T cell activation, was measured by FACS. The proliferation-related index was determined by carboxyl fluorescin diacetate succinmidyl ester flow cytometry. The cell-cycle distribution was analyzed by propidium iodide staining.

以Con A作为T细胞活化、增殖的刺激剂，以不同浓度的TMB-8及与环孢菌素A联合作用于该系统，用流式细胞术检测T细胞早期活化标志CD69分子的表达；以活体染料羧基荧光素乙酰乙酸染色流式细胞术，分析TMB-8在Con A刺激下小鼠淋巴细胞的增殖相关指数；以碘化丙啶染色分析细胞周期的分布情况。

Also, the infrared spectroscopy experiments proved that the surfaces of CNTs could be coated by hexadecyl trimethyl ammonium bromide in ammonia solution. The dispersion of modified CNTs in water was improved significantly.

实验结果表明，通过混合酸处理能够使CNTs表面拥有较多的羟基和羧基官能团；在氨水的作用下，CNTs能够被HTAB所包覆，而且修饰后的CNTs在水中的分散性能得到提高。

Based on our intensive studies on the lactonization of oligo/polysialic acids, we proposed for the first time that the lactone-ring formation of oligo/polysialic acids has three stages. We also provided a novel model to explain the conformational changes of oligo/polysialic acids caused by the repulsing forces among the carboxyl groups of sialic acid residues. Our results should provide novel approaches for further investigation of the structural-functional relationships of oligo/polysialic acids.

在对多/寡聚唾液酸内酯化过程进行深入研究的基础上，于国际上率先提出多/寡聚唾液酸内酯的形成具有三个阶段的观点，并首创性地提出了羧基排斥所致多/寡聚唾液酸分子空间构象改变的模型，为深入研究多/寡聚唾液酸结构与功能的关系提供了新生长点。

The experiment result shows that favorable colour development performance can be achieved for the adhesive with polyvinyl alcohol as major component and the waterproof quality can be improved when the carboxyl tetraphene latices was mixed into the adhesive in a certain proportion.

实验发现，使用聚乙烯醇为主体的胶粘剂可使热敏纸获得良好的发色性能，胶粘剂中混入一定比例的羧基丁苯类胶乳可以使热敏纸的防水性能得到改善。

Furthermore, some discrepancies in earlier literature have been pointed out and our results may provide guidance for hydrogen-bonding association, in particular for the design and assembly of supramolecular polymers based on carboxylic acid/pyridyl pairs.

指出了早期文献报道的一些不一致甚至矛盾的结果。通过不同系列的对比研究，得出的一些规律性对氢键组装尤其对羧基/吡啶氢键缔合超分子体系设计与构筑具有一定指导意义。

Stat5a and Stat5b belong to Stat family and have a 96% similarity; they exhibit superimposable expression patterns during mammary gland development, although the majority of the differences lie in the transcriptional activation domain at the carboxyl termini.

Stat5a和Stat5b同属Stat家族，它们的蛋白产物有96％的相似性，在乳腺发育过程中的表达模式也非常相似，但在其羧基端的转录活化功能域有较大区别。

Batch and semi-continuous oxidation of p-xylene to terephthalic acid in oxygen-enriched atmosphere with volume fraction of oxygen from 21% to 80% were investigated.

在体积分数为21%~80%的富氧空气中进行对二甲苯的间歇和半连续氧化反应，获得了富氧条件下对二甲苯氧化反应的固相中间产物(对羧基苯甲醛、对甲基苯甲酸)含量的变化规律。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。