| On steady two-fluid electroosmotic flow with full interfacial electrostatics. | |
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MedLine Citation:
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PMID: 21396652 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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A two-fluid electroosmotic flow in a microchannel is studied by considering full hydrodynamic and electrostatic interactions on the interface. Jumps in electrical potential and in charge density across the interface, in particular, are found to create counterintuitive flow behavior through the electrostatic interaction of the interface with the external field imposed. The interfacial electrostatic effects are shown to induce flow reversal within physically reasonable parametric ranges. It is also shown that the electrostatic properties of the interface must be carefully considered in electroosmotic pumping lest the nonconducting fluid should stay stationary or flow in an unintended direction. A formula for quantitative control of electroosmotic pumping is provided. |
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Authors:
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Wooseok Choi; Ashutosh Sharma; Shizhi Qian; Geunbae Lim; Sang Woo Joo |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-3-9 |
Journal Detail:
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Title: Journal of colloid and interface science Volume: - ISSN: 1095-7103 ISO Abbreviation: - Publication Date: 2011 Mar |
Date Detail:
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Created Date: 2011-3-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0043125 Medline TA: J Colloid Interface Sci Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Elsevier Inc. All rights reserved. |
Affiliation:
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Department of Mechanical Engineering, Postech, Pohang 790-784, Republic of Korea; Division of Integrative Bioscience and Biotechnology, Postech, Pohang 790-784, Republic of Korea. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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