Inertial focusing of non-spherical microparticles

被引：114

作者：

Hur, Soojung Claire ^{[1
,2
]}

Choi, Sung-Eun ^{[3
,4
]}

Kwon, Sunghoon ^{[3
]}

Di Carlo, Dino ^{[2
,5
]}

机构：

[1] Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA

[2] Calif NanoSyst Inst, Los Angeles, CA 90095 USA

[3] Seoul Natl Univ, Dept Elect Engn, Seoul 151742, South Korea

[4] Seoul Natl Univ, Interuniv Semicond Res Ctr, Seoul 151742, South Korea

[5] Univ Calif Los Angeles, Dept Bioengn, Los Angeles, CA 90095 USA

来源：

APPLIED PHYSICS LETTERS | 2011年 / 99卷 / 04期

基金：

美国国家科学基金会;

关键词：

PARTICLES; FILTRATION;

D O I：

10.1063/1.3608115

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have investigated the focusing and dynamics of non-spherical polymeric particles in microfluidic flows at finite Reynolds number. The rotational diameter, D-max, 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 D-max exhibited longer residence times in a horizontal orientation than those with smaller D-max. These findings inform approaches to hydrodynamically control shaped and barcoded particles for multiplexed biochemical assays. (C) 2011 American Institute of Physics. [doi:10.1063/1.3608115]

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页数：3

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