Description
PCL-PEG-Vinyl Sulfone (PCL-PEG-VS) is a biodegradable amphiphilic block copolymer developed for advanced drug delivery and thiol-selective bioconjugation. The hydrophobic poly(ε-caprolactone) (PCL) block readily self-assembles into polymeric micelles and nanoparticles capable of encapsulating hydrophobic therapeutics, while the hydrophilic polyethylene glycol (PEG) block enhances aqueous solubility, colloidal stability, prolonged circulation, and biocompatibility.
The terminal vinyl sulfone (VS) group is a highly selective Michael acceptor that reacts efficiently with sulfhydryl groups on cysteine-containing peptides, proteins, antibodies, enzymes, and other thiolated biomolecules under mild physiological conditions. The resulting thioether linkage is stable and non-reducible, making PCL-PEG-Vinyl Sulfone particularly suitable for preparing robust bioconjugates and functional nanocarriers.
PCL-PEG-Vinyl Sulfone is widely employed in targeted drug delivery, peptide and antibody conjugation, hydrogel preparation, nanoparticle surface modification, tissue engineering, biosensor development, and advanced biomaterials.
Applications
- Polymeric micelle preparation
- Nanoparticle fabrication
- Targeted drug delivery
- Thiol-selective bioconjugation
- Peptide conjugation
- Antibody conjugation
- Hydrogel synthesis
- Surface functionalization
- Tissue engineering
- Biomaterials research
Features and Benefits
- Amphiphilic PCL-PEG block copolymer
- Terminal vinyl sulfone functionality
- Selective thiol-reactive chemistry
- Stable thioether bond formation
- Biodegradable PCL segment
- Excellent aqueous dispersibility
- Excellent biocompatibility
- Research-grade quality
