Fabrication of TIO 2 nanotube arrays by progressive anodization of ti thin film on insulated substrates
A progressive anodization technique with a motorized anode and controlled parameters achieves uniform TiO2nanotubes on non-conductive substrates, addressing the challenge of non-uniform growth and enabling improved medical implant performance.
Patent Information
- Application Number
- PCT/US2025/044560
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-09-05
- Filing Date
- 2025-09-03
- Publication Date
- 2026-03-12
AI Technical Summary
Existing methods struggle to achieve uniform and customizable TiO2nanotube diameters and growth on non-conductive substrates like zirconia and glass, leading to incomplete and non-uniform nanotube formation due to discontinuity in the conductive Ti layer during anodization.
A progressive anodization technique using a motorized vertical moving anode and controlled submersion in an electrolyte, combined with optimized parameters such as Ti deposition rate, anodization voltage, and NH4F concentration, to ensure uniform nanotube growth and precise control over diameter and uniformity.
The method enables the production of uniform TiO2nanotubes with diameters ranging from 10 nm to 120 nm on non-conductive substrates, enhancing applications in medical implants by ensuring consistent antibacterial properties and osseointegration.