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Updated: Mar 28, 2026
Pilot In Vitro Study to Assess Cleaning Ability and Effects of Different Decontamination Methods on Implant Surfaces
Published on: November 21, 2025
Disinfection of titanium dioxide nanotubes using super-oxidized water decrease bacterial viability without disrupting
Ernesto Beltrán-Partida1, Benjamín Valdez-Salas2, Alan Escamilla2
1Department of Biomaterials, Dental Materials and Tissue Engineering, Faculty of Dentistry Mexicali, Autonomous University of Baja California, Av. Zotoluca and Chinampas St., 21040 Mexicali, Baja California, Mexico; Department of Corrosion and Materials, Engineering Institute, Autonomous University of Baja California, Blvd. Benito Juarez and Normal St., 21280 Mexicali, Baja California, Mexico.
Titanium dioxide nanotubes on Ti6Al4V alloy enhance osteoblast adhesion and reduce bacterial viability. Ultraviolet (UV) irradiation and super-oxidized water (SOW) offer effective sterilization and disinfection for medical implants.
Area of Science:
- Biomaterials Science
- Surface Engineering
- Medical Device Technology
Background:
- Titanium alloys are widely used in medical implants.
- Surface modifications can improve implant biocompatibility and reduce infection risk.
- Developing effective sterilization and disinfection methods for implants is crucial.
Purpose of the Study:
- To synthesize amorphous titanium dioxide nanotubes (NTs) on Ti6Al4V alloy.
- To evaluate the efficacy of UV irradiation and super-oxidized water (SOW) for sterilizing and disinfecting NT surfaces.
- To assess the impact of these treatments on osteoblast adhesion and bacterial viability.
Main Methods:
- Anodization of Ti6Al4V alloy to create TiO2 NTs.
- Sterilization using UV irradiation and disinfection using SOW.
- Culturing pig periosteal osteoblast (PPO) cells and Staphylococcus aureus (S. aureus) on treated surfaces.
- Assessing cell adhesion, morphology, and bacterial viability.
Main Results:
- TiO2 NTs significantly improved PPO cell adhesion, morphology, and filopodia development.
- SOW cleaning did not disrupt the benefits of NTs for cell adhesion.
- UV and SOW treatments led to significantly decreased S. aureus viability.
- Osteoblast behavior remained unaltered by the sterilization and disinfection methods.
Conclusions:
- Amorphous TiO2 NTs on Ti6Al4V alloy enhance osteoblast response.
- UV irradiation and SOW are effective for implant sterilization and disinfection.
- These methods maintain osteoblast compatibility while reducing bacterial load, making them suitable for medical implants.
