A high flow rate DC magnetohydrodynamic (MHD) micropump

被引:0
|
作者
Homsy, A [1 ]
Koster, S [1 ]
Eijkel, JCT [1 ]
van den Berg, A [1 ]
Verpoorte, E [1 ]
de Rooij, NF [1 ]
机构
[1] Univ Neuchatel, Inst Microtechnol, CH-2000 Neuchatel, Switzerland
来源
MICRO TOTAL ANALYSIS SYSTEMS 2004, VOL 1 | 2005年 / 296期
关键词
DC MHD; micropump; magnetohydrodynamics;
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We present a device that allows high-speed DC magnetohydrodynamic (MHD) pumping in 75-mu m-deep closed glass microchannels. High DC current densities (J) can be applied across the main channel without introducing bubbles. Linear velocities of up to 1.25 mm/sec (0.7 mu L/min) were observed in buffered solutions using a 0.4 T NdFeB permanent magnet, at a current density of 4000 A/m(2). The current density and corresponding flow speed are 50 and 30 times higher respectively, with a channel height 4 times smaller than reported by others in closed channels [1].
引用
收藏
页码:372 / 374
页数:3
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