A new method for particle manipulation by combination of dielectrophoresis and field-modulated electroosmotic vortex

A new method for particle manipulation by combination of dielectrophoresis and field-modulated electroosmotic vortex
复制标题

介电泳与场调制电渗涡流相结合的粒子操纵新方法

DOI:
10.1007/s10483-018-2303-9
复制
发表时间:
2018-03
期刊:
Applied Mathematics and Mechanics (English Edition )
影响因子:
--
通讯作者:
Wu Jiankang
Wu Jiankang
中科院分区:
其他
文献类型:
--
作者:
Xie Chuanchuan;Chen Bo;Yan Bing;Wu Jiankang

文献摘要

参考文献

相似文献

微通道中的场调制电渗流(FMEOF)可以通过在垂直于通道壁的方向上施加调制电场来获得。由于调制壁上的表面电荷,电极周围沿着EOF产生微涡旋。当可极化颗粒悬浮在电极附近时,它们由于非均匀电场而经历介电泳力。在本文中,微涡和介电泳力相结合,以实现分离和捕获不同尺寸的颗粒在连续流。数值结果表明,通过调节平行于通道壁的驱动电场和调制电场,可以改变介电泳力和流体动力的比例。一种类型的颗粒可以通过微涡旋(负介电电泳(DEP))捕获,而其他颗粒被输送到下游,使得颗粒被分离。研究了电极长度和沟道高度对捕获率的影响。
A field-modulated electroosmotic flow (FMEOF) in a microchannel can be obtained by applying modulating electric fields in a direction perpendicular to the channel wall. Micro-vortexes are generated around the electrodes along with an EOF due to the surface charge on the modulated wall. When polarizable particles are suspended near the electrodes, they experience dielectrophoretic forces due to a non-uniform electric field. In this paper, micro-vortexes and dielectrophoretic forces are combined to achieve separation and trap different sized particles in a continuous flow. Numerical results indicate that by adjusting the driving electric field parallel to the channel wall and the modulating electric field, the ratio of dielectrophoretic and hydrodynamic forces can be altered. One type of particles can be trapped by micro-vortexes (negative dielectrophoresis (DEP)), and the other particles are transported to the downstream so that the particles are separated. The influence of the electrode length and the channel height on the trapping rate is investigated.
DOI: 10.1088/0960-1317/25/3/035003
发表时间: 2015-03-01
影响因子: 2.3
作者:
Chung, Cheng-Che;Glawdel, Tomasz;Chang, Hsien-Chang
通讯作者: Chang, Hsien-Chang
DOI: 10.1002/elps.201000308
发表时间: 2011-02
期刊: ELECTROPHORESIS
影响因子: 2.9
作者:
D. Pal;S. Chakraborty
通讯作者: D. Pal;S. Chakraborty
DOI: 10.1002/elps.201300385
发表时间: 2014-02-01
期刊: ELECTROPHORESIS
影响因子: 2.9
作者:
Gencoglu, Aytug;Olney, David;Lapizco-Encinas, Blanca H.
通讯作者: Lapizco-Encinas, Blanca H.
DOI: 10.1021/j100445a015
发表时间: 1980-04
期刊: The Journal of Physical Chemistry
影响因子: --
作者:
W. Olivares;T. Croxton;D. A. Mcquarrie
通讯作者: W. Olivares;T. Croxton;D. A. Mcquarrie
DOI: 10.1109/rsm.2015.7354997
发表时间: 2015-12
期刊: 2015 IEEE Regional Symposium on Micro and Nanoelectronics (RSM)
影响因子: --
作者:
B. Mathew;A. Alazzam;Mohammad Abutayeh;I. Stiharu
通讯作者: B. Mathew;A. Alazzam;Mohammad Abutayeh;I. Stiharu