Reference : One-piece micropumps from liquid crystalline core-shell particles
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Multidisciplinary, general & others
One-piece micropumps from liquid crystalline core-shell particles
Fleischmann, Eva-Kristina [> >]
Liang, Hsin-Ling [> >]
Kapernaum, Nadia [> >]
Giesselmann, Frank [> >]
Lagerwall, Jan mailto [Seoul National University]
Zentel, Rudolf [> >]
Nature Communications
Nature Pub.lishing Group
ARTN: 1178
Yes (verified by ORBilu)
United Kingdom
[en] liquid crystal elastomer ; actuator ; microfluidics
[en] Responsive polymers are low-cost, light weight and flexible, and thus an attractive class of materials for the integration into micromechanical and lab-on-chip systems. Triggered by external stimuli, liquid crystalline elastomers are able to perform mechanical motion and can be utilized as microactuators. Here we present the fabrication of one-piece micropumps from liquid crystalline core-shell elastomer particles via a microfluidic double-emulsion process, the continuous nature of which enables a low-cost and rapid production. The liquid crystalline elastomer shell contains a liquid core, which is reversibly pumped into and out of the particle by actuation of the liquid crystalline shell in a jellyfish-like motion. The liquid crystalline elastomer shells have the potential to be integrated into a microfluidic system as micropumps that do not require additional components, except passive channel connectors and a trigger for actuation. This renders elaborate and high-cost micromachining techniques, which are otherwise required for obtaining microstructures with pump function, unnecessary.
Researchers ; Professionals

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