TiO2 nanotubes were grown via anodization, and were subsequently annealed.
Annealing at temperature 550 °C results in the growth of a thermal rutile oxide layer.
Corrosion resistance was significantly improved with higher annealing T.
Higher temperature annealing inhibits the growth of S. aureus and P. aeruginosa.
Non-haemolytic behavior was observed for higher temperature annealed nanotubes.