Abstract
The in vitro cell response was investigated on flat Ti surface vs nanostructured TiO2 nanotube surface. The titanium dioxide nanotube layers were prepared by electrochemical anodization of Ti in ethylene glycol, 5 wt% NH4F and 1ml H2O2. The nanotube layered structure and morphology were characterized using X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). The diameter and the length of the nanotubes are found to increase with anodization voltage. Hs27 and breast cancer cell line MCF-7 were used for cell interaction studies. Different surfaces of titanium show variation in term of growth and viability of cells. Different cell type also show different cellular responses to these surfaces. Titanium nanotube with tube diameter 90 nm promoted normal cell adherence and spreading but killed the cancer cells. The detail of the observation is discussed thoroughly in this paper.
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