Low voltage plug flow pumping using anisotropic electrode arrays

被引：71

作者：

Mpholo, M

Smith, CG

Brown, ABD

机构：

[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[2] Technol Partnership Plc, Royston SG8 6EE, Herts, England

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2003年 / 92卷 / 03期

关键词：

plug flow; microfluidics; pumping; asymmetric electrodes; AC electroosmosis;

D O I：

10.1016/S0925-4005(03)00289-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Arrays of asymmetric interdigitated electrodes were used to produce fluid flow of an ionic solution. The electrodes were made of transparent (transmission similar to80%) indium tin oxide (ITO) and were powered by AC voltages of less than 5 V-rms. We experimentally confirm predictions that the velocity of the fluid increases with the decreasing dimensions of the electrodes and we achieved velocities in excess of 450 mum/s at 2.2 V-rms. Plug flow for the different electrode dimensions was obtained by placing one array at the bottom of a solution and the other at the top, leaving a gap of 280 mum. The experimental observations fit well with theory. (C) 2003 Elsevier Science B.V All rights reserved.

引用

页码：262 / 268

页数：7

共 13 条

[1] Pumping liquids using asymmetric electrode arrays [J].