Molecular-scale understanding of the structure and properties of interfacial chains by collaboration of multiple measurements and calculations
| Project/Area Number |
17KK0112
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| Research Category |
Fund for the Promotion of Joint International Research (Fostering Joint International Research)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Thin film/Surface and interfacial physical properties
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| Research Institution | Kanazawa University |
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Principal Investigator |
Asakawa Hitoshi 金沢大学, ナノマテリアル研究所, 准教授 (90509605)
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| Project Period (FY) |
2017 – 2020
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
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| Keywords | 原子間力顕微鏡 / 1分子蛍光顕微鏡 / 蛍光デフォーカスイメージング / 単一分子蛍光 / 界面分子鎖 / デフォーカス / １分子蛍光分光 |
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| Outline of Final Research Achievements |
In this project, we combined various measurement and computational methods to understand the structures and properties of interfacial chains at the molecular scale, which are related to materials and molecular functions. In particular, we designed a structural model of interfacial chains that can be applied for both atomic force microscopy (AFM) and defocus imaging using super-resolution fluorescence microscopy. As a result, we were able to introduce the interfacial chains by coupling reaction at the interface using Huisgen cycloaddition and visualize its structural changes by AFM. In addition, the orientation and dynamics of the interfacial chain model were evaluated by the defocused patterns obtained by fluorescence defocus imaging. The same sample can be measured by AFM and fluorescence defocus imaging, and the complementary combination of the information obtained by each method has advanced our understanding of the interfacial chains at a molecular scale.
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| Academic Significance and Societal Importance of the Research Achievements |
界面は極めて小さな空間であるため、そこに存在する分子の構造や物性の理解することは挑戦的な課題である。申請者はこれまで開発してきた原子間力顕微鏡(AFM)を用いて、この挑戦的な課題を解決し、界面に存在するナノ分子鎖の構造と機能の関係を解明することを目指している。本研究課題の成果により、AFM手法では直接的に得ることができない分子配向やダイナミクスの情報を蛍光デフォーカスイメージングで獲得し、AFMで可視化されるナノ分子鎖の理解を深めることが可能となった。これにより、これまで議論が困難であった界面構造と材料機能の理解が大幅に進展し、次世代材料の創出に繋がると期待される。
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Report
(5 results)
Research Products
(3 results)
