Nanowerk  September 15, 2022 Spots with dual structural colors on the skin of some organisms in nature are of interest due to the unique function of their dye-free colors. However, imitation of them requires complicated manufacturing processes, expensive equipment, and multiple predesigned building blocks. Researchers in Hong Kong have developed a one-pot strategy based on the phase-separation-assisted nonuniform self-assembly of monosized silica nanoparticles to construct domes with dual structural colors. In drying poly(ethylene glycol)-dextran-based (PEG-DEX) droplets, monosized nanoparticles distributed nonuniformly in two compartments due to the droplet inner flow and different nanoparticle compatibility with the two phases. The dome colors […]