Journal
APPLIED PHYSICS LETTERS
Volume 94, Issue 16, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3123254
Keywords
electric fields; microactuators; microfluidics
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Funding
- NSF [CMMI 0745019, CMMI 0833232]
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [0745019] Funding Source: National Science Foundation
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A eukaryotic ciliate, Tetrahymena pyriformis, has been controlled using galvanotaxis and phototaxis in a low Reynolds number fluidic environment. A cell-tracking algorithm demonstrates the controllability of Tetrahymena pyriformis under two types of external stimuli. Electrical stimulation, in the form of a direct current electric field through the containing fluid, causes a change in swimming direction toward the cathode. Photostimulation, by high intensity broadband light, results in a rotational motion of the cells. The motivation of this work is to progress further with biological microfluidic actuators and sensors for use in engineered systems.
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