Abstract
Mixing is an essential, yet challenging, process step for many Lab on a Chip (LOC) applications. This paper presents a method of mixing for microfluidic devices that relies upon electroosmotic flow. In physical tests and in computer simulations, we periodically vary the electric field with time to mix two aqueous solutions. Good mixing is shown to occur when the electroosmotic flow at the two inlets pulse out of phase, the Strouhal number is on the order of 1, and the pulse volumes are on the order of the intersection volume.
Publication types
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Comparative Study
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Evaluation Study
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Research Support, Non-U.S. Gov't
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Validation Study
MeSH terms
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Complex Mixtures / analysis
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Complex Mixtures / chemistry*
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Computer Simulation
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Electrochemistry / instrumentation*
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Electrochemistry / methods
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Equipment Design / instrumentation
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Equipment Design / methods
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Equipment Failure Analysis / instrumentation
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Equipment Failure Analysis / methods*
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Flow Injection Analysis / instrumentation*
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Flow Injection Analysis / methods
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Microfluidic Analytical Techniques / instrumentation*
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Microfluidic Analytical Techniques / methods
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Microfluidics / instrumentation*
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Microfluidics / methods
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Models, Theoretical*