In vitro bioactivity and corrosion resistance of Zr incorporated TiO2 nanotube arrays for orthopaedic applications

- Self-organised TiO2 nanotube arrays (TNT) were developed by anodization.
- Zr ions were incorporated onto TNT (Zr-TNT) by dip coating method.
- Surface analysis confirmed the presence of ZrTiO4 over the TNT surface.
- Zr-TNT was completely covered with HAp after immersion in Hank's solution.
- Zr-TNT exhibited higher bioactivity as well as enhanced corrosion resistance.