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. 2021 Oct 18;15(11):17480–17498. doi: 10.1021/acsnano.1c03905

Figure 4.

Figure 4

(A–C) Tensile stress–strain curves, UTS, and Young’s modulus of pure PCL, biomimetic Sr/Cu-doped 1D HA/PCL composites with 10, 30, and 50 wt % Sr/Cu-doped 1D HA, and Nano HA/PCL composites with 30 and 50 wt % Nano HA, respectively. (D–F) SEM micrographs of the fracture surface of biomimetic Sr/Cu-doped 1D HA/PCL composites with 30 and 50 wt % Sr/Cu-doped 1D HA and the Nano HA/PCL composite with 50 wt % Nano HA after the tensile test, respectively. (G–I) Compressive stress–strain curves, compressive strength (at 5% strain), and compressive modulus of pure PCL, biomimetic Sr/Cu-doped 1D HA/PCL composites with 30 and 50 wt % Sr/Cu-doped 1D HA, and Nano HA/PCL composites with 30 and 50 wt % Nano HA in the longitudinal direction, respectively. (*) for p < 0.05, (**) for p < 0.01, (***) for p < 0.001, and (****) for p < 0.0001.