Research Article

Efficacy of rhBMP-2 Loaded PCL/β-TCP/bdECM Scaffold Fabricated by 3D Printing Technology on Bone Regeneration

Figure 5

Scanning electron microscopic photographs of (a, b, and c) PCL/β-TCP, (d, e, and f) PCL/β-TCP/bdECM, and (g, h, and i) PCL/β-TCP/bdECM/BMP scaffolds [original magnifications: ×30 (a, d, and g) ×50 (b, e, and h), and ×100 (c, f, and i)].