Droplet dynamics in a microchannel subjected to electrocapillary actuation

Chakraborty, Suman ; Mittal, Rajat (2007) Droplet dynamics in a microchannel subjected to electrocapillary actuation Journal of Applied Physics, 101 (10). Article ID 104901. ISSN 0021-8979

Full text not available from this repository.

Official URL: http://scitation.aip.org/content/aip/journal/jap/1...

Related URL: http://dx.doi.org/10.1063/1.2732431

Abstract

In this paper, a theoretical approach is devised to analyze the droplet dynamics in a microchannel subjected to electrocapillary actuation mechanisms. Specific attention is devoted to estimate the influences of the applied potentials and the hydrophobic insulation thicknesses, so as to obtain suitable interelectrode spacings, for a given droplet size. It is revealed that there exists a threshold limit on the value of the interelectrode pitch, beyond which the overall microfluidic transport rates are substantially lowered. On the other hand, with interelectrode spacings below the threshold limit, unnecessarily large number of electrodes might be necessary to achieve a desired droplet transport. Further, the optimal interelectrode spacings are found to be strong functions of the applied potentials and the dielectric layer thicknesses, based on which suitable design guidelines can be proposed.

Item Type:Article
Source:Copyright of this article belongs to American Institute of Physics.
ID Code:101076
Deposited On:27 Dec 2016 11:15
Last Modified:27 Dec 2016 11:15

Repository Staff Only: item control page