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Issue 1, 2006
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Shear force induced monodisperse droplet formation in a microfluidic device by controlling wetting properties

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Abstract

Perpendicular flow is used to induce oil droplet breakup by using a capillary as water phase flow channel. It is a new route to produce monodisperse emulsions. The wetting properties of the fluids on the walls are exceedingly important parameters. Depending on the oil and water flow rates, different spatial distributions of the two phases as laminar, plugs, cobbles and drops, are obtained. The effects of two-phase flow rates on plugs and drop size are studied, and the different droplet formation mechanisms of plug flow and drop flow are discussed. Two quantitative equations utilized to predict the droplet size are developed.

Graphical abstract: Shear force induced monodisperse droplet formation in a microfluidic device by controlling wetting properties

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Publication details

The article was received on 12 Jul 2005, accepted on 11 Oct 2005 and first published on 01 Nov 2005


Article type: Paper
DOI: 10.1039/B509939K
Citation: Lab Chip, 2006,6, 131-136
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    Shear force induced monodisperse droplet formation in a microfluidic device by controlling wetting properties

    J. H. Xu, G. S. Luo, S. W. Li and G. G. Chen, Lab Chip, 2006, 6, 131
    DOI: 10.1039/B509939K

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