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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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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