| Project/Area Number |
26560197
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Biomedical engineering/Biomaterial science and engineering
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 生物・生体工学 / 材料加工・処理 / 生体材料 / 再生医学 / セラミックス |
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| Outline of Final Research Achievements |
The authors have proposed a technique for the laser bonding of bone with bioceramics (G-HAp) sintered with hydroxyapatite and glass powders. This study is to investigate the effects of glass content in the G-HAp on the bonding strength and to verify the laser bonding between the G-HAp and the bone surface covered with periosteum. The G-HAp plate was positioned onto a bovine bone specimen, and a 5 mm diameter area was irradiated with a fiber laser beam in vitro . Every G-HAp specimen was instantaneously bonded to the bone specimen. The highest shear strength of the bonding between the bone and G-HAp specimen was 12.4 ± 3.8 N at 20 wt% glass content in shear fracture tests. The G-HAp, periosteum, and bone were melted, and a bonding substance was generated to bond both materials through the periosteum, thus suggesting the feasibility of the laser bonding method for clinical applications.
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