Description
General Description
8-Arm PEG Epoxide is a multifunctional PEG crosslinker designed for the fabrication of highly crosslinked hydrogels and advanced biomaterials. The eight-arm architecture provides a high density of terminal epoxide groups, enabling efficient covalent attachment to proteins, peptides, polysaccharides, polymers, enzymes, and biomaterial surfaces.
Epoxide groups undergo nucleophilic ring-opening reactions with primary amines, sulfhydryl (thiol) groups, hydroxyl groups, and other nucleophiles under mild aqueous or organic conditions. This versatile chemistry enables the preparation of stable polymer networks, injectable hydrogels, bioactive scaffolds, and surface-functionalized materials.
The PEG backbone provides excellent water solubility, flexibility, and biocompatibility while reducing nonspecific protein adsorption. Compared with linear PEG derivatives, the eight-arm structure offers significantly higher crosslinking efficiency and improved mechanical properties.
Applications
- Hydrogel synthesis
- Polymer crosslinking
- Protein immobilization
- Enzyme immobilization
- Surface modification
- Tissue engineering
- Cell encapsulation
- Drug delivery systems
- Biomaterials engineering
- Regenerative medicine
Features and Benefits
- Eight terminal epoxide groups
- Multi-arm PEG architecture
- Highly reactive toward amines, thiols, and hydroxyls
- High crosslinking density
- Excellent water solubility
- Excellent biocompatibility
- Low protein adsorption
- Suitable for injectable hydrogels
- Ideal for advanced biomaterials
