Electrokinetic 'ratchet' pumps for microfiuidics

被引:18
作者
Ajdari, A [1 ]
机构
[1] ESPCI, UMR CNRS 7083, Lab Phys Chim Theor, F-75231 Paris 05, France
来源
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2002年 / 75卷 / 02期
关键词
D O I
10.1007/s003390201329
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The symmetry argument underlying 'ratchet' schemes for the motion of molecular motors and for selective transport of particles is shown to yield new means for the pumping of liquids. A practical realization consists in using surfaces bearing polar periodic arrays of electrodes addressed by an ac voltage difference. The resulting surface-induced pumping remains efficient under miniaturization and may find application in microfluidics.
引用
收藏
页码:271 / 274
页数:4
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