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. 2019 Feb 28;10:2041731419831466. doi: 10.1177/2041731419831466

Figure 2.

Figure 2.

FE-SEM images of treated Ti membranes (small-hole surface): (a) surface view (magnification ×2000) showed a homogeneous and porous coating with Ca-P granules. (b) cross-sectional view (magnification ×50,000) revealed that this coating contains two parts: a below nanotubular array which was penetrated by above Ca-P precipitations, and (c) chemical elements on the surface after APH treatment analyzed by EDS.