Surface Modification of Bioglass with Phosphatidyl Cholines

Bioglass powders were treated with phosphatidyl cholines,and the interactions between bioglass and phosphatidyl cholines were studied by thermal analysis and fourier transform infrared spectroscopy(FTIR).The phosphatidyl cholines are adhered on the bioglass surface through weak interactions such as hydrogen bonds.Surface modification of bioglass particles improves the compressive strength of the bioglass/chitosan composites.SEM observation indicates a uniform distribution of modified bioglass particles in the chitosan matrix.The results suggest that the surface modification by phosphatidyl cholines can effectively enhance the interfacial interaction between bioglass particles and chitosan matrix.