Figure 2.

Examples of Pickering emulsions stabilized by polymer-based particles. (a) Left to right, confocal images of pristine and swollen hydrogel colloidosomes stabilized with 1 μm PS latex beads, uptake and exclusion of payloads by the hydrogelled colloidosomes, respectively. (Reproduced from the study by Douliez et al [25] with permission from Wiley) (b) Left (a–h): confocal microscope images of colloidal lattices at droplet surfaces and corresponding constructed Voronoi diagrams of the colloidal lattices at varying pH and temperature, right: Cryo-scanning electron microscopy (cryo-SEM) images of the interface of IL-in-water droplets covered by composite microgel particles at different pH, respectively, the scale bars in a-d are 2.5 μm and in e-h are 1.5 μm (reproduced from the study by Chen et al [39] with permission from Elsevier) (c) Scanning Electron Microscopy (SEM) images of the nanocomposite microgel and fluorescence microscopy images of as-stabilized o/w and w/o emulsions. (Reproduced from the study by Watanabe et al [41] with permission from The Royal Society of Chemistry). IL, ionic liquid.