Figure 7

CCK-8 results representing the MC3T3-E1 cell proliferation on the different coatings, data expressed as mean ± SD (n = 5), *a statistical significance compared to the HA group (P < 0.05) (a), and cell morphologies on HA (b), HA/0.2CS (c), HA/0.5CS (d), HA/2CS (e), HA/6CS (f) after culturing for a day.