| Project/Area Number |
15K05633
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Polymer/Textile materials
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| Research Institution | Kyushu University |
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Principal Investigator |
Matsuno Hisao 九州大学, 工学研究院, 准教授 (50376696)
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| Research Collaborator |
Tanaka Keiji 九州大学, 大学院工学研究院, 教授
Morimitsu Yuma 九州大学, 大学院工学府, 大学院生
Chen Wen-Chang National Taiwan University, Department of Chemical Engineering
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | デオキシリボ核酸 / 高分子固体シート / 分子鎖凝集構造 / 引張特性 / 分子鎖熱運動性 / グリーンポリマー / 固体シート / 力学特性 / 固体フィルム |
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| Outline of Final Research Achievements |
Deoxyribonucleic acids (DNAs) were intermolecularly cross-linked using 2,5-hexanedione. Cross-linking points between DNAs were directly observed by atomic force microscopy. While DNA chains near cross-linking points were denatured, DNA chains not near cross-linking points maintained B-form double strands. A self-supported sheet of cross-linked DNA (DNA-c) was obtained by a simple solvent-casting method. The tensile properties of DNA-c sheets were much better than those of non-cross-linked DNA sheets due to the presence of the cross-linking portions. Wide-angle X-ray diffraction measurements revealed that the reorientation of DNA-c was remarkably restricted by the introduction of cross-linking points. Furthermore, to suppress the water evaporation which causes changing the tensile properties of the solid sheets of DNA in a short time, we used hydrated ionic liquid, CDP. The tensile properties of DNA/CDP sheets could be maintained for a time being longer than several days.
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