A large variety of oil in water emulsification methods have been described ranging from simple set up with a beaker and stirrer to,For instance,
Methods based on static micromixer,
Where the particle size can be controlled by the flow rates of the oil and water phase in micromixer,or surface liquid spraying,where the oil phase is sprayed on the surface of the stirred water phase. Also,a "jet excitation method" has been described to achieve size-uniform microparticles by feeding the drug/polymer solution through a glass nozzle,