On the origin and evolution of the depletion zone in coffee stains.
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DOI: 10.1039/c9sm00228f
Abstract: The variation in the concentration of surfactant molecules along the air-water interface of a drying sessile drop containing colloidal particle-surfactant mixtures is known to inhibit the formation of coffee stains. This also leads to the… read more here.
Keywords: depletion zone; coffee stains; evolution depletion; depletion ... See more keywords