The effect of TiO2 nanotubes on endothelial function and smooth muscle proliferation.

In this study we investigate the effects of nanotubular titanium oxide (TiO(2)) surfaces on vascular cells. EC and VSMC response to nanotubes was investigated through immunofluorescence staining, scanning electron microscopy, 5-ethynyl-2'-deoxyuridine proliferation assays, and prostaglandin I(2) (PGI(2)) enzyme immunoassays. We found that the nanotubular surface significantly enhances EC proliferation and secretion of PGI(2).