Figure 8.

Biocompatibility of fibroblast cells on CS/SF blend films: (a) fibroblast cells adhesion on the blend film after 3 days of incubation, the white arrow showing cell-cell interaction, (b) fibroblast cells viability on the different blend films, and (c) type I collagen mRNA expression of fibroblast cells cultured on the blend films and tissue culture plate (TCPs) at day 14. Data represent mean ± standard error (n = 4). Student's t-test showed a significant difference in day 7 (*P < 0.05) and day 14 (**P < 0.001) as compared to day 1 (CF: chitosan : fibroin ratio).