Monofunctional PEG and Oligoethylene Glycols (84)

Monofunctional polyethylene glycol (PEG), featuring a single chemically reactive end, is widely utilized in PEGylation, surface grafting, and nanoparticle coating. It is frequently employed in bioconjugation, surface functionalization, and nanoparticle modification. Oligopolyethylene glycol (e.g., PEG-2, PEG-4) primarily serves as a solvent and penetration enhancer, facilitating the dissolution of active ingredients, improving stability and solubility, enhancing drug permeability and absorption, and thereby boosting bioavailability.