Fig. 1

Morphologies of the microhydroxyapatite whiskers observed by SEM (a). Hydrophilic images of SHA, SMHA, SSHA, and SMSHA (b–e), respectively. Water contact angles of SHA, SMHA, SSHA, and SMSHA (f). Pore sizes of the four scaffolds (g). Young’s moduli of the four scaffolds (h). The compressive strengths of four scaffolds (i). (n = 5, * P < 0.05, # P > 0.05 compared with SHA)