Some of the most vividly colored materials in nature, including things like butterfly wings, don’t obtain their color from pigment. Instead, their internal structure reflects light at a given ...

A synthetic material which mimics the brightest and most vivid colors in nature, and changes color when twisted or stretched, has been developed. It could have important applications in the security, ...

(Nanowerk News) Imagine cleaning out your refrigerator and being able to tell at a glance whether perishable food items have spoiled, because the packaging has changed its color, or being able to tell ...