Application of electrokinetic instability flow for enhanced micromixing in cross-shaped microchannel

Min Zhong Huang; Ruey Jen Yang; Chang Hsien Tai; Chien Hsiung Tsai; Lung Ming Fu

doi:10.1007/s10544-006-0034-z

Application of electrokinetic instability flow for enhanced micromixing in cross-shaped microchannel

Min Zhong Huang, Ruey Jen Yang, Chang Hsien Tai, Chien Hsiung Tsai, Lung Ming Fu

Department of Engineering Science

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

66 Citations (Scopus)

Abstract

This paper proposes a cross-shaped micromixer featuring a pair barrier within the mixing channel. The proposed device obtains a rapid mixing of two sample fluids by means of the electrokinetic instability-induced shedding effects which are produced when a DC electric field of an appropriate intensity is applied. The proposed device uses a single high-voltage power source to simultaneously drive and mix the sample fluids. The effectiveness of the mixer is characterized experimentally as a function of the applied electric field intensity and the extent to which a pair barrier obstruct the mixing channel. The experimental results indicate that the mixing performance reaches 96% at a cross-section located 1 mm downstream of the cross-junction when an electric field of 300 V/cm is applied. The micromixing method presented in this study provides a simple low-cost solution to mixing problems in lab-on-a-chip systems.

Original language	English
Pages (from-to)	309-315
Number of pages	7
Journal	Biomedical Microdevices
Volume	8
Issue number	4
DOIs	https://doi.org/10.1007/s10544-006-0034-z
Publication status	Published - 2006 Dec

All Science Journal Classification (ASJC) codes

Biomedical Engineering
Molecular Biology

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10.1007/s10544-006-0034-z

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title = "Application of electrokinetic instability flow for enhanced micromixing in cross-shaped microchannel",

abstract = "This paper proposes a cross-shaped micromixer featuring a pair barrier within the mixing channel. The proposed device obtains a rapid mixing of two sample fluids by means of the electrokinetic instability-induced shedding effects which are produced when a DC electric field of an appropriate intensity is applied. The proposed device uses a single high-voltage power source to simultaneously drive and mix the sample fluids. The effectiveness of the mixer is characterized experimentally as a function of the applied electric field intensity and the extent to which a pair barrier obstruct the mixing channel. The experimental results indicate that the mixing performance reaches 96% at a cross-section located 1 mm downstream of the cross-junction when an electric field of 300 V/cm is applied. The micromixing method presented in this study provides a simple low-cost solution to mixing problems in lab-on-a-chip systems.",

author = "Huang, {Min Zhong} and Yang, {Ruey Jen} and Tai, {Chang Hsien} and Tsai, {Chien Hsiung} and Fu, {Lung Ming}",

note = "Funding Information: Acknowledgments The current authors gratefully acknowledge the financial support provided to this project by the National Science Council of Taiwan under Grant Number NSC-95-2314-B-020-001-MY2.",

year = "2006",

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doi = "10.1007/s10544-006-0034-z",

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AU - Huang, Min Zhong

AU - Yang, Ruey Jen

AU - Tai, Chang Hsien

AU - Tsai, Chien Hsiung

AU - Fu, Lung Ming

N1 - Funding Information: Acknowledgments The current authors gratefully acknowledge the financial support provided to this project by the National Science Council of Taiwan under Grant Number NSC-95-2314-B-020-001-MY2.

PY - 2006/12

Y1 - 2006/12

N2 - This paper proposes a cross-shaped micromixer featuring a pair barrier within the mixing channel. The proposed device obtains a rapid mixing of two sample fluids by means of the electrokinetic instability-induced shedding effects which are produced when a DC electric field of an appropriate intensity is applied. The proposed device uses a single high-voltage power source to simultaneously drive and mix the sample fluids. The effectiveness of the mixer is characterized experimentally as a function of the applied electric field intensity and the extent to which a pair barrier obstruct the mixing channel. The experimental results indicate that the mixing performance reaches 96% at a cross-section located 1 mm downstream of the cross-junction when an electric field of 300 V/cm is applied. The micromixing method presented in this study provides a simple low-cost solution to mixing problems in lab-on-a-chip systems.

AB - This paper proposes a cross-shaped micromixer featuring a pair barrier within the mixing channel. The proposed device obtains a rapid mixing of two sample fluids by means of the electrokinetic instability-induced shedding effects which are produced when a DC electric field of an appropriate intensity is applied. The proposed device uses a single high-voltage power source to simultaneously drive and mix the sample fluids. The effectiveness of the mixer is characterized experimentally as a function of the applied electric field intensity and the extent to which a pair barrier obstruct the mixing channel. The experimental results indicate that the mixing performance reaches 96% at a cross-section located 1 mm downstream of the cross-junction when an electric field of 300 V/cm is applied. The micromixing method presented in this study provides a simple low-cost solution to mixing problems in lab-on-a-chip systems.

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Application of electrokinetic instability flow for enhanced micromixing in cross-shaped microchannel

Abstract

All Science Journal Classification (ASJC) codes

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