Silane-PEG-OH

Price range: $280.00 through $460.00

Silane-PEG-OH is a heterobifunctional polyethylene glycol derivative containing a trialkoxysilane group at one terminus and a hydroxyl group at the other. The silane functionality enables covalent attachment to silica, glass, quartz, metal oxides, and hydroxylated surfaces, while the terminal hydroxyl group provides a neutral hydrophilic terminus for surface passivation and further chemical modification. Silane-PEG-OH is widely used in surface engineering, nanoparticle functionalization, biosensors, diagnostics, and biomedical research.

Product Specifications

Product Name: Silane-PEG-OH
Alternative Name: Hydroxyl PEG Silane
PEG Molecular Weight: 1000, 2000, 3400, 5000, 10000 Da, Custom
Functional Groups: Trialkoxysilane, PEG, Hydroxyl (OH)
Appearance: White to off-white solid or viscous oil
Solubility: Water, Methanol, Ethanol, DMSO, DMF
Storage: -20°C, dry and protected from moisture
Purity: Typically ≥95%

Silane-PEG-OH

Description

Silane-PEG-OH is a versatile surface-modification reagent designed for PEGylation of inorganic materials and nanomaterials. The trialkoxysilane group readily hydrolyzes and forms stable siloxane bonds with hydroxyl-rich surfaces such as silica nanoparticles, glass slides, silicon wafers, quartz substrates, iron oxide nanoparticles, and other metal oxides.

The PEG spacer improves hydrophilicity, reduces nonspecific protein adsorption, minimizes surface fouling, and enhances biocompatibility. The terminal hydroxyl group provides a non-reactive hydrophilic surface while also serving as a synthetic handle for further derivatization when desired.

Silane-PEG-OH is widely employed in nanoparticle stabilization, biosensor fabrication, diagnostic devices, anti-fouling coatings, biointerfaces, medical device coatings, and surface modification applications.

Applications

  • Silica nanoparticle functionalization
  • Glass surface modification
  • Surface PEGylation
  • Biosensor fabrication
  • Anti-fouling coatings
  • Diagnostic device development
  • Medical device coatings
  • Nanoparticle stabilization
  • Surface engineering
  • Biomedical research

Features and Benefits

  • Reactive trialkoxysilane functionality
  • Terminal hydroxyl group
  • Stable surface immobilization
  • Excellent surface coverage
  • Reduces nonspecific protein adsorption
  • Improves hydrophilicity
  • Excellent biocompatibility
  • Anti-fouling surface properties

Additional information

Molecular size

1000, 2000, 3400, 5000, 10k

Package size

200mg, 500mg, 1 g