2015 Fiscal Year Final Research Report
Surface Modification of Metallic Bio-materials by Nanosecond-Pulsed Laser
| Project/Area Number |
25820365
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Material processing/Microstructural control engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | レーザ加工 / 表面改質 / 生体材料 / インプラント / 生体活性 |
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| Outline of Final Research Achievements |
We developed surface modification technology for implants by using commercially pure Titanium (cp Ti). The study contributes to shortening the time required for adhesion between bone and surfaces of implants. In this study, a nanosecond-pulsed laser was used to modify the surfaces of cp Ti and their bioactivities were then evaluated. From the results, an oxide layer with high oxygen concentration and various kinds of texture were produced. Moreover, the OH groups were created on the laser-treated surface. These effects result in the formation of hydroxyapatite on surfaces immersed in 1.5-times concentrated simulated body fluid. This indicates that laser treatment improves the bioactivity of cp Ti, which is a critical property for osseointegrated implants.
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| Free Research Field |
材料工学，精密加工学
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