It is believed that SDS micelles covered the oil droplets (initially covered by CTAB), which were then sequestered within the Dex-rich phase as occurred previously when adding CM-Dex. Here, addition of DexSulf again induced a transition to stable smaller droplets (not shown) as observed in the later case (fig. ). In the same way, instead of DexSulf, addition of positively charge Dex derivative DEAE-Dex also induced a transition to stable smaller droplets (figure and), which no longer coalesced. That polymer is expected to recover the oil-in-water droplets that were initially stabilized by CTAB but were also covered with SDS micelles, affording these oily droplets to come back to the Dex-rich droplet interface, yielding their stabilization. This feature was again clearly observed by epifluorescence microscopy using DEAE-DexFITC and Nile red. In summary, small oil-in-water droplets produced 'in situ' by sonication in W/W emulsion allowed the stabilization of the later. This yields formation of a Pickering or double-like emulsion with oily droplets juxtaposed at the Dex-rich droplet interface with the PEG-rich continuous phase. Using additional surfactants or polymers allowed destabilization of the double-like emulsion, which could reform stable droplets upon addition of another polymer.