Apatite formation on electrochemically treated titanium

Kanji Tsuru, S. Takemoto, S. Hayakawa, A. Osaka

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

Apatite formation on artificial materials in a body environment is the prerequisite condition for showing bioactivity i.e. bone-bonding ability. A specific hydrated silica or titania gel has the ability of apatite deposition in body environment. We electrochemically prepared such a bioactive titanium oxide layer on titanium(Ti) with a cell consisting of Ti as the working electrode, Pt as the counter one, Ag/AgCl as the reference one, and an aqueous solution of 0.1 mol/L Ca(NO3)2 as the electrolyte solution. Ti was kept at 9.5V for 1 hour for oxidation(denoted as Ca9.5). Ti was subject to cathodic polarization at -3.0V for 10 min(Ca-3.0).: calcium ions were expected to be adsorbed on its surface. On treatment Ca9.5-3.0 Ti was first oxidated at 9.5V for 1 hour and subsequently kept at -3.0V for 10 min. The specimens of Ca9.5-3.0 and Ca-3.0 were found so bioactive as to deposit apatite within 12 hours and 1 day, respectively, in a simulated body fluid(Kokubo solution) whereas those due to Ca9.5 could not deposit apatite within 7 days. Calcium hydroxide and calcium carbonate detected on the bioactive surface caused no harmful effects on spontaneous deposition of apatite in the fluid.

Original languageEnglish
Pages (from-to)141-146
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume599
Publication statusPublished - Dec 11 2000
EventMineralization in Natural and Synthetic Biomaterials - Boston, MA, USA
Duration: Nov 29 1999Dec 1 1999

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Apatites
Apatite
Titanium
titanium
apatite
Deposits
Calcium Hydroxide
Cathodic polarization
Calcium Carbonate
Body fluids
calcium
Bioactivity
Hydrated lime
Silicon Dioxide
Titanium oxides
Electrolytes
body fluid
Calcium carbonate
bioactivity
Bone

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Tsuru, K., Takemoto, S., Hayakawa, S., & Osaka, A. (2000). Apatite formation on electrochemically treated titanium. Materials Research Society Symposium - Proceedings, 599, 141-146.

Apatite formation on electrochemically treated titanium. / Tsuru, Kanji; Takemoto, S.; Hayakawa, S.; Osaka, A.

In: Materials Research Society Symposium - Proceedings, Vol. 599, 11.12.2000, p. 141-146.

Research output: Contribution to journalConference article

Tsuru, K, Takemoto, S, Hayakawa, S & Osaka, A 2000, 'Apatite formation on electrochemically treated titanium', Materials Research Society Symposium - Proceedings, vol. 599, pp. 141-146.
Tsuru K, Takemoto S, Hayakawa S, Osaka A. Apatite formation on electrochemically treated titanium. Materials Research Society Symposium - Proceedings. 2000 Dec 11;599:141-146.
Tsuru, Kanji ; Takemoto, S. ; Hayakawa, S. ; Osaka, A. / Apatite formation on electrochemically treated titanium. In: Materials Research Society Symposium - Proceedings. 2000 ; Vol. 599. pp. 141-146.
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