Figure 2

The morphology of BMSCs on 2D culture plate and 3D scaffolds. (a) Macrophotograph of 3D collagen porous scaffolds. (b) SEM image of 3D porous scaffolds. Scale bar = 400 μm. (c) Macrophotograph of BMSCs cultured in RCCS-3D group. (d) Macrophotograph of BMSCs cultured in static-2D group and static-3D group.