Figure 5

Surface roughness (a) and water contact angles (b) of the corresponding composite coatings, data expressed as mean ± SD (n = 3), *a statistical significance compared to the HA group (P < 0.05).

Surface roughness (a) and water contact angles (b) of the corresponding composite coatings, data expressed as mean ± SD (n = 3), *a statistical significance compared to the HA group (P < 0.05).