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
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发表时间:
2018-03
期刊:
影响因子:
--
通讯作者:
Wu Jiankang
中科院分区:
文献类型:
--
作者:
Xie Chuanchuan;Chen Bo;Yan Bing;Wu Jiankang
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.
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DOI:
10.1088/0960-1317/25/3/035003
发表时间:
2015-03-01
影响因子:
2.3
作者:
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通讯作者:
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作者:
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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:
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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:
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通讯作者:
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