2016 Fiscal Year Final Research Report
Study on static and dynamic structure in nano-interfacial space by electrical impedance spectroscopy
| Project/Area Number |
25289096
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
FUJII Teruo 東京大学, 生産技術研究所, 教授 (30251474)
TAKAI Madoka 東京大学, 工学研究科, 教授 (40287975)
FUKUBA Tastuhiro 独立行政法人海洋研究開発機構, 海洋工学センター, 技術研究主任 (80401272)
MOGI Katsuo 東京工業大学, 工学院, 研究員 (20610950)
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Keywords | Microfluidics / Lab-on-a-chip / MEMS / NEMS / Bionanotechnology / Single-molecule |
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| Outline of Final Research Achievements |
The nanospace should be partially or totally filled with an electric double layer at the interface between solid and liquid. Electrical impedance spectroscopy was used to comprehensively investigate how the ionic concentration and the volume of the nanospace influenced by the electrical properties of various ionic solutions in a nanochannel. The electrokinetic properties and the thickness of the electric double layer in the nanospace were determined to be dependent on the hydration diameter, mobility, and ionic strength of the various ion species. The electric double layer overlaps under particular conditions, such as with sufficiently narrow channels, and the qualitative properties of this were consistent with the Debye-Hckel-Onsager equation.
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| Free Research Field |
Nanofluics
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