Fig. 4From: A novel gelatin/chitooligosaccharide/demineralized bone matrix composite scaffold and periosteum-derived mesenchymal stem cells for bone tissue engineeringScanning electron micrographs of cell-seeded scaffolds. MSCs were cultured in proliferating medium for 7 days (A-C) and 28 days of culturing showing the cellular attachment and spreading (D-F). A, D G scaffolds B, E GC scaffolds C, F GCD scaffolds. (scale bar = 10 μm)Back to article page