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Bioluminescence-based imaging technique for pressure measurement in water

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タイトル: Bioluminescence-based imaging technique for pressure measurement in water
著者: Watanabe, Yasunori 著作を一覧する
Tanaka, Yasufumi 著作を一覧する
キーワード: Bioluminescence
Impact pressure
Imaging measurement
発行日: 2011年 7月
出版者: Springer Berlin / Heidelberg
誌名: Experiments in Fluids
巻: 51
号: 1
開始ページ: 225
終了ページ: 236
出版社 DOI: 10.1007/s00348-011-1043-0
抄録: The dinoflagellate Pyrocystis lunula emits light in response to water motion. We developed a new imaging technique for measuring pressure using plankton that emits light in response to mechanical stimulation. The bioluminescence emitted by P. lunula was used to measure impact water pressure produced using weight drop tests. The maximum mean luminescence intensity correlated with the maximum impact pressure that the cells receive when the circadian and diurnal biological rhythms are appropriately controlled. Thus, with appropriate calibration of experimentally determined parameters, the dynamic impact pressure can be estimated by measuring the cell-flash distribution. Statistical features of the evolution of flash intensity and the probability distribution during the impacting event, which are described by both biological and mechanical response parameters, are also discussed in this paper. The practical applicability of this bioluminescence imaging technique is examined through a water drop test. The maximum dynamic pressure, occurring at the impact of a water jet against a wall, was estimated from the flash intensity of the dinoflagellate.
Rights: The original publication is available at
資料タイプ: article (author version)
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 渡部 靖憲


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