ABSTRACT
Nano-emulsions are a class of emulsions with uniform and extremely small droplet size (typically in the range 20-500 nm). Because of their characteristic size, some nanoemulsions appear transparent or translucent to the naked eye (resembling microemulsions) and possess stability against sedimentation or creaming. Nanoemulsions of the oil-in-water (O/W) type have been investigated and used in practical applications for a long time [1-5]. However, they have experienced growing interest and very active development in recent years, as reflected by publications [6-16] and patents [17-27] on this subject.
