Visible light-induced antibacterial and osteogenic cell proliferation properties of hydrogenated TiO2 nanotubes/Ti foil composite

Nanotechnology. 2021 May 7;32(19):195101. doi: 10.1088/1361-6528/abe156.

Abstract

We successfully fabricated the hydrogenated TiO2 nanotubes/Ti foil (H-TNTs/f-Ti) composite via one-step anodization and two-step annealing. H-TNTs/f-Ti composite had a higher visible light-induced photoelectric response and more hydroxyl functional groups compared with Ti foil and unmodified TiO2 nanotubes/Ti foil composite, which contributed to limiting the proliferation of Streptococcus mutans and Porphyromonas gingivalis, promoting the proliferation of MC3T3-E1 cell on the hydroxylated surface, and improving the biocompatibility with osteogenic cells. Our study provides a simple and effective method for significantly improving dental implant efficacy.

MeSH terms

  • Animals
  • Anti-Bacterial Agents* / chemistry
  • Anti-Bacterial Agents* / pharmacology
  • Cell Line
  • Cell Proliferation* / drug effects
  • Cell Proliferation* / radiation effects
  • Cell Survival / drug effects
  • Cell Survival / radiation effects
  • Hydrogenation
  • Mice
  • Nanotubes / chemistry*
  • Osteoblasts / drug effects
  • Photolysis
  • Porphyromonas gingivalis / drug effects
  • Streptococcus mutans / drug effects
  • Titanium* / chemistry
  • Titanium* / pharmacology

Substances

  • Anti-Bacterial Agents
  • titanium dioxide
  • Titanium