| Project/Area Number |
15K14152
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Structural/Functional materials
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| Research Institution | Kyushu University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
AKASE Zentaro 東北大学, 多元物質科学研究所, 講師 (90372317)
NIITSU Kodai 理化学研究所, 創発物性科学研究センター, 特別研究員 (90733890)
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| Research Collaborator |
OSHIMA Yoshifumi 北陸先端科学技術大学院大学, 先端科学技術研究科, 准教授 (80272699)
KRISHNAN Kannan M. University of Washington, Department of Materials Science and Engineering, Professor
ONISHI Ichiro 日本電子株式会社, EM事業ユニット, リーダー
KASUYA Daisuke 日本電子株式会社, フィールドソリューション事業部, 主事
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 磁性微粒子 / 自己組織化 / 電子顕微鏡 / コロイド / その場観察 |
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| Outline of Final Research Achievements |
The aim of this study is to understand the basic mechanisms of self-assembly of magnetic nanoparticles dispersed in liquid, with the aid of in-situ transmission electron microscopy (TEM) observations. Collaborating with a research group of Univ. Washington (Prof. Krishnan), we have chosen a solvent that is favorable for TEM studies. The self-assembly of magnetite nanoparticles was observed in two conditions, with and without applied magnetic field. The direct observations demonstrated an essential role of magnetic dipolar interaction in the self-assembly. Brownian motion of the nanoparticles was significant in the colloidal phase.
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