Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and certain color effects are impossible to achieve ...

Structural coloration means that the microstructure of an object causes various colors to appear. For industry, this is an attractive alternative to coloring with pigments. But so far, scientists had ...

Under the right conditions, ordinary clear water droplets on a transparent surface can produce brilliant colors, without the addition of inks or dyes. This iridescent effect is due to "structural ...