| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Outline of Final Research Achievements |
We have developed the fabrication method of nano- or micro-meter-scale metal thin film patterns on hydro-gels. In this method, patterned metal films, which were prepared by top-down method, e.g. lithography and vapor deposition, were immobilized on gels by the polymerization of gel monomers on the pattern films. In this work, we prepared Au dot array or line-and-space patterns on poly-acrylic acid hydrogels. These metallic periodic patterns on hydrogels make available for various applications. We succeeded in high-accuracy measurements of gel swelling and shrinking by using the laser diffraction with Au patterns on gels. Au nano-dot array on gels can produce iridescent color, and its spectral response can be finely modulated by changing the nano-dot spacing with hydrogel swelling and shrinking.
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