ABSTRACT

Multiple emulsions are complex systems in which dispersed droplets contain smaller droplets inside. They are more complex systems, termed “emulsions of emulsions,” in which the droplets of the dispersed phase contain even smaller dispersed droplets. Each dispersed globule in the double emulsion forms a vesicular structure with single or multiple aqueous compartments separated from the aqueous phase by a layer of oil phase compartments (Aserin, 2008; Davis, 1981; Garti and Aserin, 1996; Khan et al., 2006). Multiple emulsions, which have ternary, quaternary, or more complex structures, have been studied since their rst description in 1925 (Seifriz, 1925). However, it is only in the past 20 years that they have been studied in more detail.