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- 详细信息
- 文献和实验
- 技术资料
- 保存条件:
Powder: -20°C, 3 years; 4°C, 2 years.In solvent: -80°C, 6 months; -20°C, 1 month.
- 库存:
货期:1-2天
- 供应商:
MedChemExpress LLC
- CAS号:
103-33-3
- 规格:
1 g/5 g/10 g
| 规格: | 1 g | 产品价格: | ¥120.0 |
|---|---|---|---|
| 规格: | 5 g | 产品价格: | ¥360.0 |
| 规格: | 10 g | 产品价格: | ¥600.0 |
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Azobenzene
CAS No. : 103-33-3
MCE 国际站:Azobenzene
产品活性:Azobenzene可以用作光触发器,用于设计和合成各种光响应系统。
研究领域:Others
作用靶点:Others
In Vitro: Photochromic compounds that undergo large conformational changes when exposed to light of appropriate wavelength are particularly attractive as molecular switch elements. Azobenzene is a popular choice among the chromophores. The thermodynamically favored trans isomer is rapidly converted to the cis isomer by irradiation at the wavelength of the π-π* transition, whereas the reverse process is achieved either (slowly) by thermal relaxation in the dark or (quickly) by irradiation at the wavelength of the n-π* transition. The azobenzene amino acid (aa) can be used as a photo-inducible conformational switch in polypeptides. A reversible conformational change of the peptide backbone is induced by switching between the cis and trans configurations of the azobenzene moiety by irradiation with light of suitable wavelength. Azobenzene has been the most widely used optical trigger for the synthesis of photoresponsive systems ranging from poly-a-amino acids to innovative materials with light-controlled mechanical and optical properties. Its use in form of appropriate derivatives allow to generate cyclic peptide structures of constraint conformational space and thus to exploit its reversible photoisomerization to induce well defined transitions between different conformational states. Azobenzene photoswitches can be used to drive functional changes in peptides, proteins, nucleic acids, lipids, and carbohydrates.
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文献和实验活化半小时后避光贮存,制成的薄层以不变成灰色为好,在三天内应用。也可先把硝酸银用少量水溶解,再用甲醇稀释成10%溶液,把预先制好的硅胶G薄层浸入此溶液中约1分钟,取出避光阴干,按上法活化,贮存。 吸附剂的活度测定 1.氧化铝活度的测定 一般可用4~5种偶氮染料以薄层层析法进行测定。 染料试剂的配制:取偶氮苯(Azobenzene)50mg,对甲氧基偶氮苯(P-Methoxyuzobenzene),苏丹黄(Sudan I, Benzeneazo-β-naphthol
0:05 利用早期压力获得斑马鱼雌核发育二倍体5 0:07 内容简介7 0:21 内容订阅21 1:43 精液收集预备工作103 2:50 收集精液170 4:19 UV 灭活精子259 5:33 收集卵细胞、体外受精作用333 7:16 早期压力作用436 9:56 代表性结果:24小时时的单倍体和二倍体596 11:56 结论716 利用早期压力获得斑马鱼雌核发育二倍体本视频来源于网络,如有异议请联系我们,我们将在5个工作日内作出处理。
核糖体是细胞内一种核糖核蛋白颗粒(ribonucleoprotein particle), 其惟一功能是按照mRNA的指令将氨基酸合成蛋白质多肽链,所以核糖体是细胞内蛋白质合成的分子机器。 按核糖体存在的部位可分为三种类型:细胞质核糖体、线粒体核糖体、叶绿体核糖体。按存在的生物类型可分为两种类型:真核生物核糖体和原核生物核糖体。原核细胞的核糖体较小, 沉降系数为70S,相对分子质量为2.5x103 kDa,由50S和30S两个亚基组成; 而真核细胞的核糖体体积较大
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