| Project/Area Number |
25600096
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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 |
Thin film/Surface and interfacial physical properties
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| Research Institution | Yokohama National University |
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Principal Investigator |
OGINO Toshio 横浜国立大学, 工学(系)研究科(研究院), 教授 (70361871)
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| Co-Investigator(Renkei-kenkyūsha) |
URISU Tsuneo 名古屋大学, 工学系研究科, 教授 (50249950)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 表面・界面物性 / グラフェン加工 / ナノ細孔 / 分子ゲート / 生体分子 / グラフェン / バイオセンサ / 固体表面 / タンパク質分子 |
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| Outline of Final Research Achievements |
Toward realization of a graphene nanopore gate device, we have established a new technique for nanopore fabrication on graphene sheets using atomic force microscopy (AFM). An Ag-coated AFM tip taps the graphene sheet surface and simultaneously the graphene sheet is locally heated around the contact area of the tip by a current between the tip and the graphene surface. By this Joule heating, the graphene sheet reacts with oxygen in the atmosphere and vaporized, resulting nanopore formation. By keeping the lowest position of the tip during the tapping, the reaction is automatically stopped Using a super-sharp tip, pores as small as 20 nm has been successfully fabricated. In nanopore devices, we have detected drop-peaks in ion current using polymer beads as model biomaterials.
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