Low temperature synthesis of bioactive TiO2 thin film by two-step treatment

F. Xiao, K. Tsuru, S. Hayakawa, A. Osaka

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)


Bioactive TiO2 films were deposited on Ti substrates by two-step treatment near room temperature. A well-crystalline TiO2 gel film was obtained on Ti by soaking in TiF4+ H2O2 solution at 60° C for 24 h. Subsequent cathode polarization precipitated calcium hydroxide. Calcium carbonate appeared after samples soaking in a Kokubo simulated body fluid due to the reaction between calcium hydroxide and bicarbonate ions. Calcium hydroxide dissolved into SBF, supersaturated with calcium ions, favored apatite nucleation. Apatite thus deposited without heating the Ti substrates. This method was applicable to substrates other than Ti.

Original languageEnglish
Pages (from-to)537-540
Number of pages4
JournalKey Engineering Materials
Publication statusPublished - Jan 1 2003
EventProceedings of the 15th International Symposium on Ceramics in Medicine; The Annual Meeting of the International Society for Ceramics in Medicine - Sydney, NSW, Australia
Duration: Dec 4 2002Dec 8 2002


  • Anatase
  • Cathode polarization
  • Hydrogen Peroxide
  • Hydroxyapatite
  • SBF
  • Titanium
  • Titanium Tetrafluoride
  • Titanium oxide thin films

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


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