Surface modification of poly(L‐lactic acid) by entrapment of chitosan and its derivatives to promote osteoblasts‐like compatibility

Surface modification of biomaterials has been adopted over the years to improve their biocompatibility. In this study, aiming to promote hydrophilicity and to introduce natural recognition sites onto poly( L ‐lactic acid) (PLLA) films, chitosan and its derivatives, carboxymethyl chitosan (CMC) and N ‐methylene phosphonic chitosan (NPC), were used to modify the surface of PLLA films by an entrapment method. The surface properties of original and...