Study on the properties and optimal preparing technology of nano-TiO_2 modified silk fibroin films

In this paper,the regenerated nano-TiO2/SF(silk fibroin) composite films were synthesized using sol-gel processing.Through orthogonal experiments,experimental methods were optimized.The structures of the pure silk and composite films were characterized by SEM,FTIR and XRD.The results show that the nano-TiO2 particles are well dispersed in the silk fibroin films.the reactions between nanometer particles and silk molecular induce the rearrangement of silk fibroin molecular,which also make the conformation transits of silk fibroin from Silk Ⅰto Silk Ⅱ.