Continuous separation of non-magnetic particles inside ferrofluids

被引：76

作者：

Zhu, Taotao ^{[2
]}

Marrero, Francisco ^{[2
]}

Mao, Leidong ^{[1
]}

机构：

[1] Univ Georgia, Fac Engn, Nanoscale Sci & Engn Ctr, Athens, GA 30602 USA

[2] Univ Georgia, Dept Chem, Nanoscale Sci & Engn Ctr, Athens, GA 30602 USA

来源：

MICROFLUIDICS AND NANOFLUIDICS | 2010年 / 9卷 / 4-5期

关键词：

Particle separation; Ferrofluid; Magnetic buoyancy force; VARYING MAGNETIC-FIELDS; ON-A-CHIP; FLOW; MANIPULATION; DENSITY; MOTION; SPHERE;

D O I：

10.1007/s10404-010-0616-1

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We present a novel and label-free continuous flow non-magnetic microparticle separation scheme in a microfluidic device under static magnetic fields. The separation process is conducted inside water-based ferrofluids. We exploit the difference in particle sizes to achieve binary separation of microparticles with high throughput. We demonstrate size-based separation (1 and 9.9 mu m, 1.9 and 9.9 mu m, 3.1 and 9.9 mu m) of microparticles with a minimum of 10(5) particles/h throughput and close to 100% separation efficiency.

引用

页码：1003 / 1009

页数：7

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