Multi-layered coatings for improving implant performance of titanium

Safaee S., Abe S., Nesabi M., Moghanian A., ASADI P., Yoshida K., ...More

Ceramics International, vol.51, no.20, pp.32108-32125, 2025 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 51 Issue: 20
  • Publication Date: 2025
  • Doi Number: 10.1016/j.ceramint.2025.04.400
  • Journal Name: Ceramics International
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.32108-32125
  • Keywords: Alkali treatment, Bioactive glass 58S, Bioactivity, Surface treatment, Ti
  • Marmara University Affiliated: No

Abstract

This study assesses the mechanical and biological properties of bioactive glass 58S (BG) coating on titanium (Ti) surfaces. Abraded Ti was alkali-treated for 12 h at 60 °C using 8 mL of 5 M NaOH aqueous solution, followed by coating in BG sol to create a novel hybrid nanostructure layer on the Ti surface. Another experimental group involved abraded Ti substrates blasted with alumina powder, followed by sol-dip coating in BG sol. Characterization, adhesive strength, and cell responsiveness of individual and combined treatments were examined. Alkali-treated BG-coated Ti presented superior performance compared to alumina-blasted BG-coated Ti. Adhesive strength results confirmed that the hybrid alkali-BG treatment enhanced the bond between coating and substrate by creating a nanoporous structure layer on the Ti surface, achieving the highest bond strength values among treatment groups with excellent cell response. Improvements from combined alkali-BG treatment are attributed to the required porosity nanostructure and apatite transformation ability. Thus, alkali-BG hybridization could be a viable surface modification method for implant applications.