Magnetic particle mixing with magnetic micro-convection for microfluidics

被引：39
|
作者：
Kitenbergs, Guntars [1 ,2 ,3 ]
Erglis, Kaspars [1 ]
Perzynski, Regine [2 ,3 ]
Cebers, Andrejs [1 ]
机构：
[1] Univ Latvia, Dept Theoret Phys, MMML Lab, LV-1002 Riga, Latvia
[2] Univ Paris 06, Sorbonne Univ, PHENIX, UMR 8234, F-75005 Paris, France
[3] CNRS, PHENIX, UMR 8234, F-75005 Paris, France
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2015年 / 380卷
关键词：
Microfluidics; Mixing; Magnetic fluid; Ferrofluid; Magnetic micro-convection; Diffusion; FIELD;
D O I：
10.1016/j.jmmm.2014.10.033
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper we discuss the magnetic micro-convection phenomenon as a tool for mixing enhancement in microfluidics systems in cases when one of the miscible fluids is a magnetic particle colloid. A system of a water-based magnetic fluid and water is investigated experimentally under homogeneous magnetic field in a Hele-Shaw cell. Subsequent image analysis both qualitatively and quantitatively reveals the high enhancement of mixing efficiency provided by this method. The mixing efficiency dependence on the magnetic field and the physical limits is discussed. A suitable model for a continuous-flow microfluidics setup for mixing with magnetic micro-convection is also proposed and justified with an experiment In addition, possible applications in improving the speed of ferrohydrodynamic sorting and magnetic label or selected tracer mixing in lab on a chip systems are noted. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：227 / 230
页数：4
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