Fig. 4From: Structural properties of starch-chitosan-gelatin foams and the impact of gelatin on MC3T3 mouse osteoblast cell viabilityCells were stained with Phalloidin and DAPI to illustrate cell actin (red) and nuclei (blue), respectively. Fluorescence images of cells grown on foams with different gelatin concentrations are shown: (a) 0%, (b) 2.5%, (c) 5%, and (d) 10%. Scale bar is 100 μmBack to article page