Abstract

NANO EMULSIONS: A SHORT REVIEW

Mahak Deep Kour* and Shaveta Sharma

Abstract

Nano emulsions are non-equilibrium systems, kinetically stable, biphasic, transparent, translucent, clear, oil in water emulsion. Nano emulsions are used as substrate to enhance the transportation of medicinal agents. Often known to as mini emulsions, submicron sized emulsions, ultrafine emulsions, finely scattered emulsions with mean droplet size from 5nm to 100nm with low radial surface tension, large surface area and potential physical stability. Nano emulsions can be structurally designed to increase their solubility as per necessary route of delivery, which depends on the drug structure. The potency of nano emulsions is improved by the existence and quantity of surfactant and co-surfactants that is incorporated in the formulation. Several techniques are used for the formulation of nano emulsions and different parameters are tested for the characterization. Nano emulsions show a considerable edge for cosmetics, diagnostics, drug therapy and biotechnology in the future. This review focuses on the advantages, disadvantages, types, manufacturing methods, characteristic techniques and route of administration, various uses of nano emulsion in different fields such as chemotherapy, in cosmetics etc. Therefore, the most improved systems are used for systematic and active drug delivery, for controlled or sustained drug delivery systems.

Keywords: non-equilibrium, therapeutic, mini emulsions, biphasic, droplet size.