Studies of particle holding, separating, and focusing using convergent electrodes in microsorters

Tzong Shyng Leu; Hung Ying Chen; Fei Bin Hsiao

doi:10.1007/s10404-005-0035-x

Studies of particle holding, separating, and focusing using convergent electrodes in microsorters

Tzong Shyng Leu, Hung Ying Chen, Fei Bin Hsiao

Institute of Civil Aviation

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

This paper presents numerical simulation results on the efficacy of dielectrophoretic (DEP) convergent electrodes in a particle sorter. DEP forces created by non-uniform electric fields are used as holding forces to trap and select the particles from a mixture of many samples, as well as confining forces to focus the particles into a single particle stream in the microsorter for further analysis. The key mechanism of the sorter that can hold particles against destabilizing fluid flows is investigated in this study. A barrier is found at X/L =0.84 and Y =0 in the present DEP sorter. By comparing the DEP and hydrodynamic forces at the barrier, one can determine the release velocity when the zero-net-force condition ceases to exist and the particles start to be released.

Original language	English
Pages (from-to)	328-335
Number of pages	8
Journal	Microfluidics and Nanofluidics
Volume	1
Issue number	4
DOIs	https://doi.org/10.1007/s10404-005-0035-x
Publication status	Published - 2005 Oct

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Materials Chemistry

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10.1007/s10404-005-0035-x

Cite this

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title = "Studies of particle holding, separating, and focusing using convergent electrodes in microsorters",

abstract = "This paper presents numerical simulation results on the efficacy of dielectrophoretic (DEP) convergent electrodes in a particle sorter. DEP forces created by non-uniform electric fields are used as holding forces to trap and select the particles from a mixture of many samples, as well as confining forces to focus the particles into a single particle stream in the microsorter for further analysis. The key mechanism of the sorter that can hold particles against destabilizing fluid flows is investigated in this study. A barrier is found at X/L =0.84 and Y =0 in the present DEP sorter. By comparing the DEP and hydrodynamic forces at the barrier, one can determine the release velocity when the zero-net-force condition ceases to exist and the particles start to be released.",

author = "Leu, {Tzong Shyng} and Chen, {Hung Ying} and Hsiao, {Fei Bin}",

note = "Funding Information: Acknowledgements The authors would like to acknowledge the kind funding support from the National Science Council of Taiwan under contract no. NSC-93-2212-E-006-059. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

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doi = "10.1007/s10404-005-0035-x",

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AU - Leu, Tzong Shyng

AU - Chen, Hung Ying

AU - Hsiao, Fei Bin

N1 - Funding Information: Acknowledgements The authors would like to acknowledge the kind funding support from the National Science Council of Taiwan under contract no. NSC-93-2212-E-006-059. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2005/10

Y1 - 2005/10

N2 - This paper presents numerical simulation results on the efficacy of dielectrophoretic (DEP) convergent electrodes in a particle sorter. DEP forces created by non-uniform electric fields are used as holding forces to trap and select the particles from a mixture of many samples, as well as confining forces to focus the particles into a single particle stream in the microsorter for further analysis. The key mechanism of the sorter that can hold particles against destabilizing fluid flows is investigated in this study. A barrier is found at X/L =0.84 and Y =0 in the present DEP sorter. By comparing the DEP and hydrodynamic forces at the barrier, one can determine the release velocity when the zero-net-force condition ceases to exist and the particles start to be released.

AB - This paper presents numerical simulation results on the efficacy of dielectrophoretic (DEP) convergent electrodes in a particle sorter. DEP forces created by non-uniform electric fields are used as holding forces to trap and select the particles from a mixture of many samples, as well as confining forces to focus the particles into a single particle stream in the microsorter for further analysis. The key mechanism of the sorter that can hold particles against destabilizing fluid flows is investigated in this study. A barrier is found at X/L =0.84 and Y =0 in the present DEP sorter. By comparing the DEP and hydrodynamic forces at the barrier, one can determine the release velocity when the zero-net-force condition ceases to exist and the particles start to be released.

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Studies of particle holding, separating, and focusing using convergent electrodes in microsorters

Abstract

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