公开(公告)号：US08470151B2

公开(公告)日：2013-06-25

申请号：US13668482

申请日：2012-11-05

Applicant: Purdue Research Foundation

Inventor： Dong Liu ,  Suresh V. Garimella

IPC: G01N27/447

CPC classification number: F04B19/20 ,  B03C5/005 ,  B03C5/028

Abstract: This paper presents a microfluidic pumping approach using traveling-wave dielectrophoresis (tw-DEP) of microparticles. Flow is generated directly in the microfluidic devices by inducing electromechanical effects in the fluid using microelectrodes. The fluidic driving mechanisms due to the particle-fluid and particle-particle interactions under twDEP are analyzed, and the induced flow field is obtained from numerical simulations. Experimental measurements of the flow velocity in a prototype DEP micropumping device show satisfactory agreement with the numerical predications.

Abstract translation: 本文介绍了使用微波的行波介电电泳（tw-DEP）的微流体泵浦方法。 通过使用微电极在流体中诱导机电效应，直接在微流体装置中产生流动。 分析了在twDEP下由于颗粒流体和颗粒 - 颗粒相互作用引起的流体驱动机理，并从数值模拟中获得了诱导流场。 在原型DEP微型泵装置中的流速的实验测量显示与数字预测的令人满意的一致性。