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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Ho, Wen-Fu Lai, Chien-Hung Hsu, Hsueh-Chuan Wu, Shih-Ching |
| Description | Author Affiliation: Ho WF ( Department of Materials Science and Engineering, Da-Yeh University, 168 University Road, Dacun, Changhua, 51591, Taiwan, ROC. fujii@mail.dyu.edu.tw) |
| Abstract | The objective of this study was to propose a surface modification for a low-modulus Ti-7.5Mo alloy to initiate the formation of hydroxyapatite (HA) during in vitro bioactivity tests in simulated body fluid (SBF). Specimens of commercially pure titanium (c.p. Ti) and Ti-7.5Mo were initially immersed in a 15 M NaOH solution at 60 degrees C for 24 h, resulting in the formation of a porous network structure composed of sodium titanate (Na(2)Ti(5)O(11)). Afterwards, bioactive Bioglass particles were deposited on the surface of NaOH-treated c.p. Ti and Ti-7.5Mo. The specimens were then immersed in SBF at 37 degrees C for 1, 7 and 28 days, respectively. The apatite-forming ability of the NaOH-treated and Bioglass-coated Ti-7.5Mo was higher than that of the c.p. Ti under the same condition. The X-ray diffraction (XRD) and energy-dispersive X-ray spectroscopy (EDS) results indicated that the deposited amounts of calcium phosphate were much greater for the surface-treated Ti-7.5Mo than for the c.p. Ti, a finding attributable to or correlated with the higher pH value of the SBF containing surface-treated Ti-7.5Mo. Moreover, in the surface-treated Ti-7.5Mo, the pH value of the SBF approached a peak of 7.66 on the first day. A combination of NaOH treatment and subsequent Bioglass coating was successfully used to initiate in vitro HA formation in the surface of the Ti-7.5Mo alloy. |
| File Format | HTM / HTML |
| ISSN | 09574530 |
| Issue Number | 5 |
| Volume Number | 21 |
| e-ISSN | 15734838 |
| Journal | Journal of Materials Science: Materials in Medicine |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2010-05-01 |
| Publisher Place | United States |
| Access Restriction | Subscribed |
| Subject Keyword | Discipline Biomedical Engineering Alloys Chemistry Titanium Analysis Apatites Body Fluids Calcium Phosphates Ceramics Durapatite Oxides Spectrometry, X-ray Emission X-ray Diffraction X-rays Journal Article |
| Content Type | Text |
| Resource Type | Article |
| Subject | Biomaterials Biophysics Bioengineering Biomedical Engineering |
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