In vitro bioactive nano-crystalline TiO 2 layers grown at glass-coating/titanium interface

Yongxing Liu, Kanji Tsuru, Satoshi Hayakawa, Akiyoshi Osaka

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A new approach is presented to prepare a rutile layer on titanium substrates. According to this approach, pulverized glass, composed of 3CaO·4B 2O 3·3TiO 2, is first developed on the substrate, heated up to 700 to 850°C, and then removed by soaking in hot water. During the heating process, rutile grew at the glass coating-substrate interface to form nano-sized crystallites. The rutile layer induced apatite formation within 3 d when soaked in simulated body fluid of the Kokubo recipe. Such in vitro bioactivity was attributed to many Ti-OH groups on the crystallite surface derived from hydrolysis of bonds at the crystallite-flux (matrix) interface like (rutile) -Ti-O-B or Ti-O-Ca-(the borate matrix).

Original languageEnglish
Pages (from-to)452-457
Number of pages6
JournalNippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
Volume112
Issue number1308
Publication statusPublished - Aug 2004

Fingerprint

glass coatings
activity (biology)
Titanium
rutile
titanium
Crystalline materials
Glass
Coatings
Substrates
Industrial heating
Body fluids
Apatite
Bioactivity
Crystallites
Apatites
Borates
body fluids
soaking
Hydrolysis
apatites

Keywords

  • Apatite
  • Bioactivity
  • Glass coating
  • Rutile
  • Titania
  • Titanium

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

In vitro bioactive nano-crystalline TiO 2 layers grown at glass-coating/titanium interface. / Liu, Yongxing; Tsuru, Kanji; Hayakawa, Satoshi; Osaka, Akiyoshi.

In: Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, Vol. 112, No. 1308, 08.2004, p. 452-457.

Research output: Contribution to journalArticle

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