Polyethylene glycol (PEG) has played an important role in drug delivery to prolong blood circulation time and improve drug efficacy. It is also the most commonly used protective coating material for drug delivery liposomes (DDLs) and nanoparticles. PEG is either directly conjugated with drugs (proteins, peptides, oligonucleotides (DNA, siRNA, miRNA)) or attached to the surface of drug-encapsulating nanomaterials (a technique known as PEGylation) to augment in vivo stability and solubility and to reduce clearance rate from circulation, thus optimizing drug efficacy.

Huateng pharma provides high purity PEG derivatives for drug delivery. Activated PEG products with molecular weights, branching, and functional groups not listed in our online catalog may be available by custom synthesis. Please inquire at sales@huatengusa.com about pricing and availability.