2014 Fiscal Year Final Research Report
Construction of 2- and 3-dimensional nanostructures using DNA metallization
| Project/Area Number |
24710106
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Nanostructural science
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| Research Institution | Nagoya University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | DNA / 金属ナノ粒子 / ハイブリッド材料 / 触媒 / ゲル / 高分子薄膜 |
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| Outline of Final Research Achievements |
DNA extracted from salmon milt, the waste product of marine industry, was utilized as a functional material for construction of 2- and 3-dimensional nanomaterials for catalytic applications. DNA-based thin polymeric films and DNA hydrogels were first prepared and then used for efficient adsorption of noble metals (Au, Ag, Pt, Pg, etc.). After adsorption of metal ions inside DNA-based material, reduction of metal ions inside thin film/hydrogel resulted in a formation of well dispersed metal nanoparticles of several nanometer sizes with a narrow size distributions. Thus prepared hybrid materials showed high catalytic activity that can be controlled by swelling/shrinking of hydrogel matrix. In contrast to colloidal solutions of catalytic nanoparticles which separation and recovery problems limit their applications, DNA-based catalysts developed in this project are advantageous due to high stability, facile operation during catalysis, easy separation form reaction mixtures and reuse.
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| Free Research Field |
高分子科学
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