2023 Fiscal Year Annual Research Report
Understanding the Mechanism of Flower Petal Transparency Change and Their Applications for Biomimetics
| Project/Area Number |
19K05620
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| Research Institution | Chitose Institute of Science and Technology |
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Principal Investigator |
Karthaus Olaf 公立千歳科学技術大学, 理工学部, 教授 (80261353)
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| Co-Investigator(Kenkyū-buntansha) |
谷尾 宣久 公立千歳科学技術大学, 理工学部, 教授 (50217121)
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| Project Period (FY) |
2019-04-01 – 2024-03-31
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| Keywords | fluoropolymer / phase change / micropores / films / biomimetics / flower petals |
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| Outline of Annual Research Achievements |
The transpareny change of flower petals has been successfully implemented in a biomimetic manner in porous thin films of a fluorinated polymer. The mechanism of the transparency change in the flower was elucidated using SEM and fluorecence micrsocopy. Air-filled spaces in the leaves can be filled with water, leading to the transparent state. Using a solvent exchange process in which a spin coated film of a solution of a fluorinated polymer was immersed in a non-solvent, porous polymer films were produced that show the same white-to-transparent optical change, which is completely reversible.
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