Fig. 6
From: Hybrid nanostructured particles via surfactant-free double miniemulsion polymerization
Oval-shaped nanoparticles and Janus-like nanomushrooms. Emulsion droplets containing multiple water droplets in each oil droplet break up to small nanoparticles upon heating. a Oval-shaped polystyrene@SiO2 particles are formed from relatively small emulsion droplets that cannot be deformed significantly by magnetic stirring. b Relatively big emulsion droplets that are largely elongated by magnetic stirring are fragmentized into anisotropic particles, and the recovery of the liquid core to a spherical shape induces the breakage of the already formed silica shell
