TITLE

Galvanotactic and phototactic control of Tetrahymena pyriformis as a microfluidic workhorse

AUTHOR(S)
Kim, Dal Hyung; Casale, David; Kőhidai, László; Kim, Min Jun
PUB. DATE
April 2009
SOURCE
Applied Physics Letters;4/20/2009, Vol. 94 Issue 16, p163901
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
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.
ACCESSION #
38225329

 

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