Figure 4From: Primary human nasal epithelial cell response to titanium surface with a nanonetwork structure in nasal implant applications Crystal violet staining micrographs after 12 h of cell incubation. Crystal violet staining micrographs of HNEpC on the Ti specimens (M, E1, and E2) after 12 h of cell incubation (a, b, and c: M, E1, and E2 at low magnification, respectively; d, e, and f: M, E1, and E2 at high magnification, respectively) (arrow: spreading cells).Back to article page