(a)
(b)
(c)
(d)
(e)
(f)
(g)
(h)
Figure 1: SEM images showing surface topographies of each group (scale bar of (a-d) = 20 μm, scale bar of (e-h) = 100 nm). Low magnifications of SLM, MAO, 1 mM-Zn, and 100 μM-Zn samples (a–d); high magnification of SLM, MAO, 1 mM-Zn, and 100 μM-Zn samples in the red boxes location (e–h).