Journal
MICROFLUIDICS AND NANOFLUIDICS
Volume 3, Issue 6, Pages 635-644Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s10404-006-0147-y
Keywords
electrowetting on dielectric (EWOD); digital microfluidics; contact angle saturation
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This paper examines the electrostatic force on a microdroplet transported via electrowetting on dielectric (EWOD). In contrast with previous publications, this article details the force distribution on the advancing and receding fluid faces, in addition to presenting simple algebraic formulae for the net force in terms of system parameters. Dependence of the force distribution and its integral on system geometry, droplet location, and material properties is described. The consequences of these theoretically and numerically obtained results for design and fabrication of EWOD devices are considered.
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