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TMNN-2011. Proceedings of the International Symposium on Thermal and Materials Nanoscience and Nanotechnology
May 29 - June 3, 2011, Antalya, Turkey

DOI: 10.1615/ICHMT.2011.TMNN-2011


ISBN Print: 978-1-56700-271-3

ISSN: 2642-5386

"COFFEE STAIN EFFECT" AND "CHEERIOS EFFECT" IN AN EVAPORATING DROP

page 7
DOI: 10.1615/ICHMT.2011.TMNN-2011.210
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ABSTRACT

We report that high and low density particles in a sessile evaporating drop migrate respectively toward the edge and the center of the drop by "coffee stain effect" and "Cheerios effect." By analyzing the distribution of particles in a dried drop, we reveal that the particles can be separated efficiently at small contact angles.

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