Abstract
Pure titanium was subjected to surface modification in order to improve its bioactivity. Samples wet-polished by abrasive paper were hydrothermally treated in 0.1 mol/l MgCl 2 solutions with different pH values (5.5, 7.5 and 9.5) at 200°C for 24 h. By forming nano-sized anatase precipitations, hydrothermal treatment increased the thickness of the oxide layer obviously and Mg was found to distribute all through the oxide layer. Treatment in solution with a low pH formed TiOMg bond as MgTiO 3 , whereas, high pH induced Mg(OH) 2 precipitation onto the samples. Cell attachment and spreading were improved on samples treated in the solution of pH 5.5. As treatment solution pH rose, protein (Bovine Serum Albumin, BSA) adsorption on treated samples increased; however, initial osteoblast attachment and spreading were impaired. It is suggested that, hydrothermal treatment in MgCl 2 solution can improve the bioactivity of titanium by immobilizing Mg into oxide layer, however, the chemical state and amount of Mg should be well controlled.
| Original language | English |
|---|---|
| Pages (from-to) | 445-451 |
| Number of pages | 7 |
| Journal | Applied Surface Science |
| Volume | 270 |
| DOIs | |
| Publication status | Published - Apr 1 2013 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Condensed Matter Physics
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Surfaces, Coatings and Films
Cite this
Effects of solution pH on the structure and biocompatibility of Mg-containing TiO 2 layer fabricated on titanium by hydrothermal treatment . / Shi, Xingling; Tsuru, Kanji; Xu, Lingli; Kawachi, Giichiro; Ishikawa, Kunio.
In: Applied Surface Science, Vol. 270, 01.04.2013, p. 445-451.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effects of solution pH on the structure and biocompatibility of Mg-containing TiO 2 layer fabricated on titanium by hydrothermal treatment
AU - Shi, Xingling
AU - Tsuru, Kanji
AU - Xu, Lingli
AU - Kawachi, Giichiro
AU - Ishikawa, Kunio
PY - 2013/4/1
Y1 - 2013/4/1
N2 - Pure titanium was subjected to surface modification in order to improve its bioactivity. Samples wet-polished by abrasive paper were hydrothermally treated in 0.1 mol/l MgCl 2 solutions with different pH values (5.5, 7.5 and 9.5) at 200°C for 24 h. By forming nano-sized anatase precipitations, hydrothermal treatment increased the thickness of the oxide layer obviously and Mg was found to distribute all through the oxide layer. Treatment in solution with a low pH formed TiOMg bond as MgTiO 3 , whereas, high pH induced Mg(OH) 2 precipitation onto the samples. Cell attachment and spreading were improved on samples treated in the solution of pH 5.5. As treatment solution pH rose, protein (Bovine Serum Albumin, BSA) adsorption on treated samples increased; however, initial osteoblast attachment and spreading were impaired. It is suggested that, hydrothermal treatment in MgCl 2 solution can improve the bioactivity of titanium by immobilizing Mg into oxide layer, however, the chemical state and amount of Mg should be well controlled.
AB - Pure titanium was subjected to surface modification in order to improve its bioactivity. Samples wet-polished by abrasive paper were hydrothermally treated in 0.1 mol/l MgCl 2 solutions with different pH values (5.5, 7.5 and 9.5) at 200°C for 24 h. By forming nano-sized anatase precipitations, hydrothermal treatment increased the thickness of the oxide layer obviously and Mg was found to distribute all through the oxide layer. Treatment in solution with a low pH formed TiOMg bond as MgTiO 3 , whereas, high pH induced Mg(OH) 2 precipitation onto the samples. Cell attachment and spreading were improved on samples treated in the solution of pH 5.5. As treatment solution pH rose, protein (Bovine Serum Albumin, BSA) adsorption on treated samples increased; however, initial osteoblast attachment and spreading were impaired. It is suggested that, hydrothermal treatment in MgCl 2 solution can improve the bioactivity of titanium by immobilizing Mg into oxide layer, however, the chemical state and amount of Mg should be well controlled.
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UR - http://www.scopus.com/inward/citedby.url?scp=84875212789&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2013.01.046
DO - 10.1016/j.apsusc.2013.01.046
M3 - Article
AN - SCOPUS:84875212789
VL - 270
SP - 445
EP - 451
JO - Applied Surface Science
JF - Applied Surface Science
SN - 0169-4332
ER -