Fig. 2.

The physical properties of NiTi alloy porous scaffolds. A–C: The water contact angles of NiTi alloy porous scaffolds with varying cellular structures. D: The structural porosities of the porous scaffolds. E: The strut sizes and pore sizes of the different porous scaffolds. F and G: Ion release of the porous scaffolds under simulated physiological fluids, including the nickel ion release curves of the porous NiTi scaffolds (F) and the release curves of titanium ions from NiTi-C, NiTi-O, NiTi-T, and TC4-O porous scaffolds (G). All statistical data are represented as mean ± SD (n = 3).