Reduced platelet adhesion and improved corrosion resistance of superhydrophobic TiO2-nanotube-coated 316L stainless steel

- We fabricate TiO2 nanotubes (TNTs) with extreme wettabilities on stainless steel.
- Crystal phase and wettability affect corrosion resistance and hemocompatibility.
- Superhydrophobic TNTs improve both hemocompatibility and corrosion resistance.
- Superhydrophilic amorphous TNTs only improve hemocompatibility.
- Superhydrophilic anatase TNTs trigger coagulation but enhance corrosion resistance.