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BACKGROUND
Rapid and precise manipulation of droplets in microfluidic devices is in greater demand than ever. Droplet fusion and separation based on dielectrophoresis (DEP) in particular, commonly employed in a variety of biomedical operations, are studied extensively. Here, a full‐scale computational study is performed to understand the mechanism for the fusion of relatively small microdroplets...
The dielectrophoretic (DEP) choking phenomenon is revisited for Janus particles that are transported electrokinetically through a microchannel constriction by a direct‐current (DC) electric field. The negative DEP force that would block a particle with a diameter significantly smaller than that of the constriction at its inlet is seen to be relaxed by the rotation of the Janus particle in a direction...
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