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Quantitative measurement of dynamic flow induced by Tetrahymena pyriformis (T. pyriformis) using micro-particle image velocimetry

Title
Quantitative measurement of dynamic flow induced by Tetrahymena pyriformis (T. pyriformis) using micro-particle image velocimetry
Authors
Kim J.Jang Y.Byun D.Kim M.Nam S.-W.Park S.
Ewha Authors
박성수남성원
Issue Date
2011
Journal Title
Journal of Visualization
ISSN
1343-8875JCR Link
Citation
vol. 14, no. 4, pp. 361 - 370
Indexed
SCIE; SCOPUS WOS scopus
Abstract
In-depth quantitative visualization studies are required to understand the flow induced by swimming micro-organisms and find potential applications. The present study visualized the flow induced by Tetrahymena pyriformis of size 45-50 μm, which swam freely and via stimulation by galvanotaxis in a PDMS micro-chamber using a micro-particle image velocimetry system. The results showed that the maximum velocity of the induced flow was around 430 μm/s for free swimming and 700 μm/s for galvanotactic-controlled swimming. Due to the applied electric field, the electro-osmosis flow led to increased velocity of roughly 135 μm/s at 3 V/mm. The increased velocity stems from the increased motility of the cell under the electric field. Therefore, it was demonstrated that galvanotaxis can control the swimming direction and increase the induced velocity. © The Visualization Society of Japan 2011.
DOI
10.1007/s12650-011-0102-1
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자연과학대학 > 화학·나노과학전공 > Journal papers
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