| Project/Area Number |
20780186
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Agricultural information engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
SHUZO Masaki The University of Tokyo, 大学院・工学系研究科, 助教 (10456155)
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| Project Period (FY) |
2008 – 2009
|
| Project Status |
Completed (Fiscal Year 2009)
|
| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2008: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 生物環境情報 / MEMS / 誘電泳動 / 菌濃度センサー / 水耕栽培 |
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| Research Abstract |
Hydroponic culture has recently attracted much attention as a possible alternative to traditional soil-based agriculture because of its potential to labor saving and its stability in crop supply. In this soil-less culture, water mixed with nutrients circulates in plastic gutters where the plants grow under greenhouse conditions. However, the hydroponic configuration renders plant disease outbreaks uncontrollable. Therefore, in-line monitoring of the bacteria concentration in the hydroponic solution is required to prevent plant diseases from spreading. In this report, a bacteria concentration sensor based on dielectrophoresis (DEP) was development. The bacteria sensing mechanism consists of two steps : 1) AC voltage is applied to hydroponic solution in order to separate bacteria from other micro particles by DEP and 2) the sorted bacteria are counted and bacteria concentration is calculated from the counted number and the flow rate in the micro channel.
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