Description
General Description
PLLA-PEG-Biotin (PLLA-PEG-BIO) is a functional biodegradable block copolymer consisting of poly(L-lactide) (PLLA), a hydrophilic polyethylene glycol (PEG) spacer, and a terminal biotin group.
The hydrophobic PLLA block provides a biodegradable polymer domain suitable for forming polymeric micelles, nanoparticles, and other self-assembled nanostructures. The PEG segment improves aqueous dispersibility and colloidal stability and provides a flexible spacer that presents the biotin group at the nanoparticle or material surface.
Biotin has exceptionally strong noncovalent affinity for avidin and streptavidin. This interaction provides a convenient strategy for attaching biotin- or streptavidin-associated proteins, peptides, antibodies, targeting ligands, enzymes, fluorophores, and other biomolecules to PLLA-PEG-based nanomaterials.
PLLA-PEG-Biotin is useful for developing functionalized biodegradable nanoparticles, targeted drug delivery systems, affinity-based assemblies, biosensors, diagnostic platforms, and advanced biomaterials.
Applications
- Polymeric nanoparticle preparation
- Polymeric micelle formation
- Biotin-streptavidin conjugation
- Avidin-biotin binding systems
- Targeting ligand attachment
- Protein and antibody immobilization
- Targeted drug delivery
- Nanoparticle surface functionalization
- Biosensors and diagnostics
- Biomaterials research
Features and Benefits
- Biodegradable PLLA block
- Hydrophilic PEG spacer
- Terminal biotin functionality
- Strong affinity for avidin and streptavidin
- Suitable for affinity-based bioconjugation
- Self-assembly into nanoparticles and micelles
- Tunable PLLA and PEG molecular weights
- Suitable for drug delivery and biomaterials
