| Project/Area Number |
23560004
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Applied materials science/Crystal engineering
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| Research Institution | The University of Electro-Communications |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
WATANABE Masayoshi 電気通信大学, 大学院情報理工学研究科, 教授 (00175697)
ZHANG Yun 電気通信大学, 大学院情報理工学研究科, 准教授 (00508830)
TANAKA Kazuo 電気通信大学, 大学院情報理工学研究科, 教授 (00227125)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | bacteriorhodopsin / photosensor / robot vision / conducting polymer / sensor / conductive polymer |
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| Research Abstract |
We designed photosensors based on the bacteriorhodopsin (bR) pigment found in the cell membrane of Halobacteria and showed that motion detection is possible using only one sensing element. The photocell consists of a bR dip-coated thin film and electrolyte sandwiched between glass plates with ITO electrodes. We fabricated a simple direction sensor by patterning the bR films on electrodes. When light scans the sensing area, the edges of each pattern produce a positive or negative current depending on the light's speed and direction. These direction sensors also respond strongly to rapidly moving objects, though not at all to slow ones. Eventually we replaced ITO/glass with conductive polymer/plastic based on PEDET:PSS. The flexible sensor showed almost the same response as ITO/glass sensor, but couldn't sufficiently respond. The hybrid sensor with protein and conductive polymer will lead to large sensing area system and could be utilized for robot vision applications.
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