DSPE-PEG-Amine, MW 2,000 is a PEG polymer containing DSPE and amine end groups. The DSPE-PEGs have been FDA approved for medical applications. The hydrophobic properties of the DSPE allow for the encapsulation and congregation of other hydrophobic drugs. The hydrophilic PEG increases the water solubility of the overall compound allowing for the delivery of the drug. The amine group can react with activated NHS ester to form a stable amide bond.
DSPE-PEG-Amine, MW 1000 (ammonium) is a phosphoethanolamine involved in the synthesis of liposomes for delivery systems. The amino group of DSPE-PEG-Amine, MW 1000 (ammonium) can be converted to an aromatic aldehyde, which reacts with an acetone-protected aromatic hydrazine on the surface of the bovine carbonic anhydrase (BCA) molecule. Liposomes form a liposome-BAH-BCA conjugate by forming a bisarylhydrazone (BAH) with the target enzyme molecule. The conjugate catalyzes the hydration of carbon dioxide to bicarbonate.
