Construction of glycosylated surfaces fox poly(propylene) beads with a photoinduced grafting/chemical reaction sequence

Surface modification of commercial PPBs with different saccharides is described. Surface-glycosylated PPBs were prepared through reaction between the hydroxyl groups of poly(HEMA) and acetylated saccharides such as a-glucose pentaacetate,,B-galactose pentaacetate, and lactose octaacetate. The modified PPBs were characterized by XPS and water contact angle measurement. It was found that the grafting degree of poly(HEMA) increases with UV irradiation time, monomer concentration, and water content in solvent. The binding degree of monosaccharides is higher than that of disaccharides. The glycosylated PPBs can selectively recognize lectins, indicating potential for protein isolation.