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A superhydrophobic magnetic elastomer actuator for droplet motion control
Author(s) -
Seo K. S.,
Wi R.,
Im S. G.,
Kim D. H.
Publication year - 2013
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.3190
Subject(s) - elastomer , materials science , actuator , microfluidics , surface (topology) , nanotechnology , digital microfluidics , composite material , optoelectronics , electrical engineering , engineering , geometry , mathematics , electrowetting , dielectric
For the fast droplet transportation on an open surface, a new magnetic elastomer with a superhydrophobic surface has been developed. Because the surface is superhydrophobic, the water droplet can easily roll off on the surface. The movement of the droplet was controlled by a deliberate local deformation of the surface of the elastomer induced by magnetic actuation. The direction and speed of the droplet motion was easily controlled by changing the surface topography using magnetic force. We also demonstrate the applicability of the devices as a new type of open‐surface digital microfluidics using a simple chemical reaction. Copyright © 2013 John Wiley & Sons, Ltd.