Synonym: Silane PEG Biotin, Biotin PEG Silane, Si-PEG-Biotin, Silane polyethylene glycol biotin, Biotin polyethylene glycol Silane, Silane PEG5000 Biotin, Biotin PEG5000 Silane. Description: Ethoxy or methoxyl silane functionalized polyethylene glycol Biotin, silane PEG Biotin (Biotin-PEG-Si) is one of Nanocs surface reactive PEG derivatives that can be used to modify glass, silica and other surfaces via the reaction between hydroxyl group and ethoxyl/methoxyl silane. Biotin functional silane PEG is able to attached polyethylene glycol to various glass or metal surface biotin tag. 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: Form: Solid Color: White Reactive group: Triethoxysilane Functional tag: Biotin Solubility: Soluble in water Purity: >95% Applications: Surface modification Storage Conditions: Store at -20 0C. Desiccate. Silane PEG tends to hydrolyze from moisture. Avoid frequent thaw and frozen. USE ASAP. Reaction Procedures: Generally, silane PEG is first dissolved in a mixture of ethanol/water  or DMSO 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: Dissolve targeted materials in Pegylation buffer. 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; Allow mixture agitates at room temperature for 30 min at room temperature or 2 hours at 4 -20 0C. Wash out unreacted materials either by distilled water. References: Click here to check hundreds of publications using Nanocs PEGs.
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