Optimal design of microgrooved channels with electrokinetic pumping for lab-on-a-chip applications
Optimal design of microgrooved channels with electrokinetic pumping for lab-on-a-chip applications
- Author(s): E. Du and S. Manoochehri
- DOI: 10.1049/iet-nbt.2009.0015
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- Author(s): E. Du 1 and S. Manoochehri 1
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View affiliations
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Affiliations:
1: Mechanical Engineering Department, Stevens Institute of Technology, Hoboken, USA
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Affiliations:
1: Mechanical Engineering Department, Stevens Institute of Technology, Hoboken, USA
- Source:
Volume 4, Issue 2,
June 2010,
p.
40 – 49
DOI: 10.1049/iet-nbt.2009.0015 , Print ISSN 1751-8741, Online ISSN 1751-875X
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Various electrokinetic phenomena in microfluidics have been utilised to manipulate microfluids and particles for lab-on-a-chip applications. Microfluidic channels with traditional planar floor configuration designs have limited pumping efficiency due to the fast backward flow over the electrode surface. This study reports optimal design of a microchannel with a microgrooved configuration for conductive fluid transport with alternating current electrothermal actuations. Significant improvements in flowrate are achieved over the planar configurations without additional temperature rises. The frequency and temperature dependences of AC electrothermal (ET) flow are investigated and analysed.
Inspec keywords: lab-on-a-chip; biological techniques; electrohydrodynamics; biochemistry; electrokinetic effects; bioMEMS; microactuators; microchannel flow
Other keywords:
Subjects: MEMS and NEMS device technology; Physical chemistry of biomolecular solutions and condensed states; Flows in ducts, channels, and conduits; Biomedical measurement and imaging; Electrochemistry and electrophoresis; Magnetohydrodynamics and electrohydrodynamics; Biophysical instrumentation and techniques; Applied fluid mechanics
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