2011 Fiscal Year Final Research Report
Scanning Probe Study of Integrated Nanomaterials
| Project Area | Molecular Science for Supra Functional Systems ? Development of Advanced Methods for Exploring Elementary Process |
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| Project/Area Number |
19056006
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Kobe University |
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Principal Investigator |
ONISHI Hiroshi 神戸大学, 大学院・理学研究科, 教授 (20213803)
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| Co-Investigator(Kenkyū-buntansha) |
KIMURA Kenjiro 神戸大学, 大学院・理学研究科, 准教授 (10437246)
NOMOTO Tomonori 神戸大学, 自然科学系先端融合研究環分子フォトサイエンス研究センター, 学術研究員 (00510520)
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| Project Period (FY) |
2007 – 2011
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| Keywords | 原子間力顕微鏡 / 液体構造 / 固液界面 / 埋没界面 / 金属酸化物 / 単分子膜 / 水素結合 / 親水性 |
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| Research Abstract |
Frequency-modulation atomic force microscopy (FM-AFM) is a promising tool to observe the solid topography and the liquid structure at interfaces. The cantilever with a tip is resonantly oscillated and the shift of the resonance frequency represents liquid-induced force pushing or pulling the tip. We have successfully examined a number of liquid-solid interfaces including water/mica, water/TiO_2, water/Al_2O_3, water/hydrophilic self-assembled monolayers, alkanes/hydrophobic monolayers, water/p-nitroaniline crystal, water/peptide nanotubes. The observed, two-dimensional distributions of tip-surface force were sensitive to the composition of the solid and liquid, while insensitive to tips of different apex radii. This suggests that the observed force distribution was not much affected by the presence of the tip above the interface.
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