Background: Objective:: The stability and delivery of drugs remain one of the key hurdles in the present situation. The present study depends on the design of a novel nanoemulsion drugdelivery system that would encapsulate a drug and to improve drug stability. The charisma of nanotechnology is majorly due to the smallest particle size at the nanoscale. Methods: Nanoemulsions attention is focused on emphasizing formulation aspect, method of preparation characterization techniques, evaluation parameters and various application of the nanoemulsions, several techniques to be used for the preparation of nanoemulsions like microfluidization, high-pressure homogenization, low energy emulsification and solvent evaporation method and their parameters to be characterized. Results: The design of effective formulations for drugs is being applied to enhance the solubility and bioavailability of water-insoluble drugs. The nanosized droplets have led to considerable attraction for this formulation, for the delivery of hydrophilic as well as hydrophobic drugs as drug carriers because of their improved drug solubilization capacity, long shelf life, ease of preparation and improvement of bioavailability of drugs. Conclusion: The application of these nanoformulation preparations, limitations, their advantages and disadvantages as nanoemulsions will solve the various problems that current therapeutic agents face and has opened a new scenario to formulate nanoemulsions with various therapeutic agents with heightened competence along with oral drug delivery to treat diseases in the near future.

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