| 研究課題/領域番号 |
21F20769
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| 研究種目 |
特別研究員奨励費
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| 配分区分 | 補助金 |
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| 応募区分 | 外国 |
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| 審査区分 |
小区分35020:高分子材料関連
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| 研究機関 | 北海道大学 |
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研究代表者 |
グン 剣萍 北海道大学, 先端生命科学研究院, 教授 (20250417)
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| 研究分担者 |
LAMA MILENA 北海道大学, 先端生命科学研究科(研究院), 外国人特別研究員
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| 研究期間 (年度) |
2021-04-28 – 2023-03-31
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| 研究課題ステータス |
完了 (2022年度)
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| 配分額 *注記 |
2,300千円 (直接経費: 2,300千円)
2022年度: 1,100千円 (直接経費: 1,100千円)
2021年度: 1,200千円 (直接経費: 1,200千円)
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| キーワード | Photonic hydrogel / lamellar bilayers / self-assembly / mechanical properties / surfactant |
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| 研究開始時の研究の概要 |
Brilliant colors of living organisms are obtained by interaction of visible light with periodical structures at the nanoscale (e.g. iridescence of beetles). Soft materials such as hydrogels are of particular interest for developing bio-inspired stimuli-responsive photonic sensors (e.g. pH, temperature). The Gong group used a non-ionic surfactant (DGI) in its lamellar phase to induce large-scale structural anisotropy in photonic hydrogels. Thus, investigating other optically active liquid crystal phases by controlling DGI self-assembly could unveil new photonic properties in such materials.
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| 研究実績の概要 |
In-situ structural analysis by USAXS have revealed that the deformation mechanisms within the hydrogels have been modified even by very small amounts of co-surfactants, meaning that the chemistry of the co-surfactant is of utmost importance in this system. Such observations have led us to hypothesize that interfacial interactions between the lamellae and the gel matrix between lamellae play an important role in the deformation mechanisms during uniaxial loading or cyclic loading by helping to dissipate more energy. We expect that such understanding will help to deepen our knowledge of this system in future studies involving the mechanical response under different loading conditions. The results of this research project have been summarized into an article, submitted to the journal ACS Omega (currently under review). Thus, this research project will be published online soon. Thanks to the novelty of the work, other fundamental questions are expected to be elucidated especially regarding the mechanical behavior of this type of hydrogel. Unfortunately, USAXS conditions were not suitable to obtain any data at solution state and the SAXS machine available at the university did not give good results (even with a custom-made sample-holder) due to a lack of beam power.
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| 現在までの達成度 (段落) |
令和4年度が最終年度であるため、記入しない。
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| 今後の研究の推進方策 |
令和4年度が最終年度であるため、記入しない。
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