This mechanism of formation of water-in-oil emulsion differs from the other, relatively quiescent scenario, which stipulates that the surfactants and water diffuse passively in the aqueous phase, where they self-associate and form nanosized emulsion droplets (e.g. Figure ). However, the formation of the oil-in-water emulsion from this water-in-oil emulsion via phase inversion should be the same as that shown in Figure .