Title
Droplet actuation in an electrified microfluidic network
Abbreviated Journal Title
Lab Chip
Keywords
ELECTROHYDRODYNAMIC DEFORMATION; FIELDS; SHEAR; BURST; FLOW; Biochemical Research Methods; Chemistry, Multidisciplinary; Nanoscience; & Nanotechnology
Abstract
This work demonstrates that liquid droplet emulsions in a microchannel can be deformed, decelerated and/or pinned by applying a suitable electrical potential. By concentrating a potential gradient at the corners, we show that different droplets can be passively binned by size and on demand in a branched microfluidic device. The deformation, deceleration, squeezing and release of droplets in a three-dimensional numerical simulation are qualitatively verified by experiments in a PDMS microfluidic device. The forces required for pinning or binning a droplet provide a delicate balance between hydrodynamics and the electric field, and are obtained using appropriate non-dimensional parameters.
Journal Title
Lab on a Chip
Volume
15
Issue/Number
3
Publication Date
1-1-2015
Document Type
Article
DOI Link
Language
English
First Page
793
Last Page
801
WOS Identifier
ISSN
1473-0197
Recommended Citation
"Droplet actuation in an electrified microfluidic network" (2015). Faculty Bibliography 2010s. 6867.
https://stars.library.ucf.edu/facultybib2010/6867
Comments
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