Issue Date: May 23, 2016
Making bright colors out of thin air
Certain vibrant colors found in nature, such as the blues and purples in bird feathers and butterfly wings, are created not by pigments but by physical nanostructures that interact with light, a phenomenon known as structural color. Such colors are often shimmery, and the reds and greens typically carry a blue tint—both properties that limit using structural color to make paints and coatings, where matte colors are often the goal. Shin-Hyun Kim . . .
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