We have investigated the focusing and dynamics of non-spherical polymeric particles in microfluidic flows at finite Reynolds number. The rotational diameter, Dmax, of a particle, regardless of its cross-sectional shape, was found to determine the final focused position, except for the case of asymmetric disks. Additionally, elongated particles with larger Dmax exhibited longer residence times in a horizontal orientation than those with smaller Dmax. These findings inform approaches to hydrodynamically control shaped and barcoded particles for multiplexed biochemical assays.
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Research Article| July 29 2011
Inertial focusing of non-spherical microparticles
Soojung Claire Hur;
Soojung Claire Hur, Sung-Eun Choi, Sunghoon Kwon, Dino Di Carlo; Inertial focusing of non-spherical microparticles. Appl. Phys. Lett. 25 July 2011; 99 (4): 044101. https://doi.org/10.1063/1.3608115
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