Nanocs PG2-SLTH-5k Silane PEG thiol, Silane-PEG-SH 硅烷PEG巯基

Nanocs PG2-SLTH-5k Silane PEG thiol, Silane-PEG-SH 硅烷PEG巯基
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Nanocs—PEG修饰剂
Nanocs Inc.是PEG修饰剂(PEG derivatives, PEGylation试剂)供应商,Nanocs提供种类齐全的PEG衍生物,从磷脂PEGs到NHS-PEG,马来酰亚胺PEG,巯基PEG,氨基PEG,叠氮PEG,DSPE PEG,荧光PEG等荧光PEGs产品。
修饰性PEG应用于医学研究,药物释放,纳米技术和新材料研究,细胞培养。 以及配体研究,多肽合成支持,接枝高分子化合物,新材料和聚乙二醇改性功能涂层等活性化合物方面。

Nanocs PG2-SLTH-5k Silane PEG thiol, Silane-PEG-SH 5000 Da 100 mg
品牌:Nanocs
货号:PG2-SLTH-5k
描述:Silane PEG thiol, Silane-PEG-SH 5000 Da
规格:100 mg

Description:

Ethoxy or methoxyl silane functionalized polyethylene glycol, silane PEG (PEG-Si) is a surface reactive PEG derivative that can be used to modify glass, silica and other surfaces via the reaction between hydroxyl group and ethoxyl/methoxyl silane. Pegylation can greatly suppress the non-specific binding of charged molecules to the modified surfaces. And they have wide applications for medica device, biomems or biocompatible material development.

Physical Properties:

  • Off-white/white solid or viscous liquid depends on molecule weight;
  • Soluble in regular aqeous solution as well as most organic solvents;

Storage Conditions:

  • Store at -20 0C, desiccated. Silane PEG tends to hydrolyze from moisture. Avoid frequent thaw and frozen.

Reaction Procedures:

Generally, silane PEG is first dissolved in a mixture of ethanol/water solution, then allow the solution to contact with oxidized glass or silica surface for 30 min to 2 hours. Under this condition, silane PEG should bind to the material covalently.

Materials Required:

  • Pegylation solution: Ethanol/water (w/w, 95%/5%);
  • Silane PEG stock solution, 10~50 mg/mL in pegylation solution, prepare in fresh.
  • Washing solution: Distilled water.

Reaction Steps:

1. Dissolve targeted materials in Pegylation buffer.

2. Add silane PEG stock solution to the targeted conjugation materials with the final concentration keep at least 10 mg/mL. 10~50 molar excess of silane PEG needed for optimal conjugation;

3. Allow mixture agitates at room temperature for 30 min at room temperature or 2 hours at 4 -20 0C.

4. Wash out unreacted materials either by distilled water.

描述:

乙氧基或甲氧基硅烷官能化聚乙二醇硅烷 PEG (PEG-Si) 是一种表面反应性 PEG 衍生物,可通过羟基与乙氧基/甲氧基硅烷之间的反应来修饰玻璃、二氧化硅和其他表面。聚乙二醇化可以极大地抑制带电分子与修饰表面的非特异性结合。它们在医疗设备、生物群落或生物相容性材料开发方面具有广泛的应用。

物理性质:

  • 灰白色/白色固体或粘稠液体取决于分子量;
  • 溶于普通水溶液以及大多数有机溶剂;

储藏条件:

  • 储存于-20 0 C,干燥。硅烷 PEG 倾向于从水分中水解。避免频繁解冻和冷冻。

反应程序:

通常,硅烷 PEG 首先溶解在乙醇/水溶液的混合物中,然后让溶液与氧化玻璃或二氧化硅表面接触 30 分钟至 2 小时。在这种情况下,硅烷 PEG 应该与材料共价结合。

所需材料:

  • 聚乙二醇化溶液:乙醇/水(w/w,95%/5%);
  • 硅烷 PEG 储备溶液,10~50 mg/mL 聚乙二醇化溶液,新鲜制备。
  • 洗涤液:蒸馏水。

反应步骤:

1. 将目标材料溶解在聚乙二醇化缓冲液中。

2. 将硅烷 PEG 储备溶液添加到目标偶联材料中,最终浓度保持至少 10 mg/mL。最佳偶联所需的硅烷 PEG 过量 10~50 摩尔;

3. 让混合物在室温下搅拌 30 分钟或在 4 -20 0 C 下搅拌 2 小时。

4. 用蒸馏水洗掉未反应的物质。