Development of new functional biomaterials with femtosecond laser
| Project/Area Number |
25420777
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Material processing/Microstructural control engineering
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| Research Institution | Osaka University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | フェムト秒レーザー / 酸化チタン膜 / エアロゾルビーム / 周期的微細構造 / 偏光制御 / 生体適合性 / 細胞試験 |
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| Outline of Final Research Achievements |
Periodic nanostructures on TiO2 film were formed using a femtosecond laser with wavelengths of 258 nm (third harmonics), 388 nm (second harmonics) and 775 nm (fundamental), respectively. When the TiO2 film was irradiated with the femtosecond laser at 388 nm, the nanostructures with the period of 132 nm, 17 % of the fundamental wavelength of the femtosecond laser, was produced. Influence of the periodicity of the nanostructures on cell spreading was investigated. By changing the direction of the grooves of the nanostructures, cell spreading could be controlled. Effect of the curvature radius of the nanostructures’ grooves on cell spreading was also investigated.
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Report
(4 results)
Research Products
(48 results)
