Using the alternative method sus-mentioned to produce double emulsion form allaqueous emulsions would allow sequestration of cargos within the W/W droplets, and then, their strict encapsulation in the W/O/W emulsion. Here, aqueous two-phase systems are stabilized by small oil-in-water emulsion droplets, which come at the surface of Dex-rich droplets, forming a Pickering-like aqueous emulsion or a W/O/W double-like emulsion (see scheme 1). Adding counter-charged -surfactant or -polymers allowed destabilization and/or re-enforced stabilization of the initial emulsion. The sample is then sonicated to produce Dex-rich droplets on which, small, micrometric oilin-water droplets get spontaneously juxtaposed.