Abstract
Colloidosomes have attracted great interest in recent years because of the capability of storage and delivery of useful materials in various fields. In this article, a novel technique for formation of colloidosomes at room temperature suitable for encapsulation of biomaterials was examined. We demonstrate the formation of colloidosomes of 18.0 μm in size at room temperature by adding a small amount of ethanol into the continuous phase of sunflower oil. Poly(methyl methacrylate-co-butyl acrylate) latex particles of 185 nm in size, used in this study, were found to aggregate when ethanol was added to their suspension. We suggest that the shell of the water-core emulsions was locked by the aggregation of latex particles due to the diffusion of ethanol into the aqueous latex suspension.
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