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DSPE-PEG-Amine, MW 3400 (ammonium), is a phosphoethanolamine involved in the synthesis of liposomal delivery systems. The compound's amino group can be converted into an aromatic aldehyde to react with acetone-protected aromatic hydrazine on the surface of bovine carbonic anhydrase (BCA) molecules. Liposomes are formed by creating bis-arylhydrazone (BAH) linkages with the target enzyme molecules, resulting in a liposome-BAH-BCA conjugate that can catalyze the hydration of carbon dioxide into bicarbonate.

DSPE-PEG-Amine, MW 5000 (ammonium), is a phosphatidylethanolamine that plays a role in the synthesis of liposomes for delivery systems. The amine group in DSPE-PEG-Amine, MW 5000 (ammonium) can be transformed into an aromatic aldehyde, which reacts with acetone-protected aromatic hydrazine on the surface of bovine carbonic anhydrase (BCA) molecules. The liposomes form bisaryl hydrazone (BAH) conjugates with the target enzyme molecules, resulting in liposome-BAH-BCA conjugates that can catalyze the hydration of carbon dioxide into bicarbonate.

DSPE-PEG-Amine, MW 10000 (ammonium) is a phosphoethanolamine involved in the synthesis of lipid-based delivery systems. The amine group on DSPE-PEG-Amine, MW 10000 (ammonium) can react with aromatic aldehydes on the surface of bovine carbonic anhydrase (BCA) molecules, forming bisarylhydrazones (BAH) with the target enzyme. This interaction results in a liposome-BAH-BCA conjugate capable of catalyzing the hydration of carbon dioxide into bicarbonate.