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AC field effect flow control of EOF in complex microfluidic systems with integrated electrodes

机译:具有集成电极的复杂微流体系统中EOF的交流场效应流控制

摘要

In this work, we demonstrate that positive net flow can be induced and controlled with relatively low potential due to the parallel alignment of the integrated channel electrodes. Therefore, we present a novel method to exquisitely control Electro Osmotic Flow (EOF) by using integrated electrodes fabricated beneath a meandering channel geometry (Figure 1). Equation 1 describes EOF velocity for AC-driven flow, where εo and εr respectively are the permittivity of vacuum and that of water, ζ the zeta potential at the solid liquid interface, η the viscosity, Ex the electric field:
机译:在这项工作中,我们证明了由于集成通道电极的平行排列,可以在相对较低的电位下诱导和控制正净流量。因此,我们提出了一种新颖的方法,通过使用在弯曲通道几何结构(图1)下方制造的集成电极来精确控制电渗流(EOF)。公式1描述了交流驱动流的EOF速度,其中εo和εr分别是真空的介电常数和水的介电常数,ζ在固液界面的ζ电势,η粘度,Ex电场:

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