PEG300 (Polyethylene glycol 300) is a water-miscible polyether widely used in biochemistry, structural biology, and medicine in addition to pharmaceutical and chemical industries. It serves as a kind of solubilizer, excipient, lubricant, and chemical reagent. PEG300 helps in the formation of hydrogels in situ upon mixing with silk. These PEG-silk hydrogels are of interest for many biomedical applications, such as anti-fouling and anti-adhesion.
