Figure 1: SEM micrographs of scaffolds with various compositions: (a, b) 100% collagen, (c, d) 50% collagen-50% elastin, (e, f) 20% collagen-80% elastin, (g, h) 90% collagen-10% C4S, (i, j) 50% collagen-50% C4S. Arrows denote elastin.