查询词典 mercapto group

The present invention relates to the depolymering cyclization reaction of aromatic dithio ether polymer to prepare aromatic cyclic dithio ether compound under the presence of mercapto group containing compound and alkali matter.

本发明涉及利用芳香双硫醚聚合物的解聚成环反应来制备芳香双硫醚环状化合物的方法。该方法采用芳香双硫醚聚合物在含巯基的化合物和碱性物质存在的条件下发生解聚成环反应生成双硫醚环状化合物。

Thiol groups were good to be used in functionalizing gold nanoparticles, and ester bond formation and breakage played the major role in this research. Thioctic acid and 11-mercapto-1-undecanol were used to functionalize the gold nanoparticles and form ester bond by using the carboxylic acid group on thioctic acid and the hydroxyl group on 11-mercapto-1-undecanol. Concentrated sulfuric acid was used to be the catalyst in this reaction, and sodium hydroxide was added for the proceeding of the reverse reaction.

硫醇官能基在金奈米粒子的修饰有很好的效果，利用带有硫醇官能基之tioctic acid 与11-mercapto-1-undecanol (11-MUDO)分子修饰在金奈米粒子上，并使TA上之羧基和11-MUDO上之羟基脱水生成酯化键，浓硫酸则是反应中的催化剂，而氢氧化钠则可促使系统进行逆反应。

Among them, BRS1 with mercapto alkylchlorine substituting group, which can be used as intermediate for the synthesisof new BR derivatives.

其中一种(BRS1)为末端氯代的化合物，可以作为中间体用于进一步的合成中。

Absorption means that gold comes inside organisms and is combined with the mercapto group of protein, whereras adsorption means that gold is ad-sorped outside organisms by aminoacid secreted by cell walls.

吸附是指金被细胞壁分泌的氨基酸等有机物吸附在生物体外；吸收是指金进入生物体内，可能与蛋白质的巯基相结合。

A polar sensitive probe with selective marks prepared by the invention can be used for compounds comprising mercapto. Owning to the introduction of the maleimide group, the probe can be used for the measurement and research of marks of biomacromolecules that comprise the mercapto and adjacent regional polarity change situations of the mercapto, in particular to the research of the selective marks of the mercapto and the adjacent regional polarity change situations of the mercapto in protein.

本发明制备出一种能够用于含有巯基的化合物的选择性标记的极性敏感探针，该探针由于马来酰亚胺基团的引入，可以用于含有巯基的生物大分子的标记及巯基附近区域极性变化情况的测定和研究，特别是蛋白质中巯基的选择性标记和巯基附近极性变化情况的研究。

Containing hydroxyl and mercapto alkyl sulfatessubstituting group respectively, BRS2 and BRS3 all have higher water-solubleproperties.

另外两种胆红素衍生物(BRS2和BRS3)，分别为末端磺酸基和二羟基取代，具有较好的水溶性。

The compound can simply and rapidly get into living cells, which has a reaction with free active mercapto group in cells, and fluorescence intensity of the compound is led to be obviously enhancing, thereby the fluorescent probe can be used in fluorescent measurement or fluorescent image of fluactive mercapto group (such as glutathione and the like) in living cells.

该化合物可简单迅速地进入活细胞，与细胞内游离的活性巯基基团发生反应，导致化合物的荧光强度显著增强，进而可以用于活细胞中活性巯基的荧光测定和荧光成像。

As mercapto -function group has strong sorption on methyl mercury, an experiment was conducted to reveal the effect of the substances containing mercapto -groups on transfer and transform of mercury in soil by adding wool whose decomposed products consisting of abundant mercapto -composition.

巯基对汞特别是甲基汞有强烈的吸附作用，本试验通过对土壤添加富含巯基官能团的羊毛，初步研究含巯基物质在土壤环境中对土壤汞迁移转化作用的影响。

The major causes of off-flavour of the cooked rice was due the intractions among rice proteins, lipids and carbohydrates, which result in the production of carbonyl compounds,the increase of caproaldehyde,and the decrease of acetaldehyde and mercapto group as well as the changes in the cell wall structures.

本文结合近几年研究工作及国内外对大米陈化研究的新进展，综合阐述了随大米存放时间的延长，其化学组织特别是大米蛋白质、类脂与淀粉的共同作用，促使羰基化合物的生成、乙醛减少、己醛增加、SH基减少，以及胞壁改变，是造成大米陈化、米饭&陈米臭&的主因。

During the process of sepsis, trace dose of leptin injected peritoneally significantly improves and stabilizes the hepatic and renal functions. The mechanisms may be related with those intestinal enzymes associated with metabolism of free radicals, mercapto group and purine. Indomethacin exerts a similar role as leptin though at much higher dose.

在脓毒症过程中，微量leptin体外注射可以发挥改善和稳定肝肾功能的明显作用，其机制可能同其影响肠道多种与自由基、巯基和嘌呤代谢相关酶的功能有关，而且吲哚美辛在一定程度上有类似的效应，但所用剂量明显高于leptin水平。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。