(a)
(b)
(c)
(d)
(e)
(f)
(g)
(h)
Figure 5: Surface profiles and contact angles of each sample. Surface roughness profiles of SLM, MAO, 1 mM-Zn, and 100 μM-Zn samples (a–d); MAO samples (f) showed better hydrophilia than did SLM samples (e); 1 mM-Zn and 100 μM-Zn samples (g and h) showed total hydrophilicity.