SEM micrographs indicated that the native SF and G have smooth surfaces and no phase separation. However, native SF film appeared the small pores cover the film area while the native G film has condensed texture and no pores were observed. In case of SF/G blend films, all ratios have smooth surfaces and no phase separation. As shown in (Figure 1), increasing of gelatin help to increase the smooth surfaces of the film. Moreover, the blend films loaded chlorhexidine have negligible
morphological difference when compared to the blend films without drug (Figure 2).