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Flow cytometric analysis of MG63 cell apoptosis after 1, 4, and 7 days of culture on the cp-Ti, TNT, and TiAg-NT samples.
Abbreviations: cp-Ti, commercial pure titanium; PI, propidium iodide; TNT, titania nanotubes; TiAg-NT, TiAg alloys with nanotubular coverings.
