Asian Journal of Research in Pharmaceutical Science

Due to transparency at high droplet volume fraction, improved bioavailability or diffusion levels and improved pharmaceutical shelf-life, nanoemulsions have the potential in pharmaceutical industries. Nanoemulsions are thermodynamically stable structures of colloidal dispersion consisting of two immiscible liquids combined with emulsifiers (surfactants and co-surfactants) Nanoemulsions have been extensively investigated as drug delivery systems. The aim of this review is to provide comprehensive information on the various techniques of formulating and characterizing nanoemulsions. Nanoemulsions are thermodynamically stable colloidal dispersion systems consisting of two immiscible liquids combined in a single phase together with emulsifying agents (surfactants and co-surfactants). The aim of this review is to provide consolidated information on various formulation and characterization techniques developed for nanoemulsions.