Colors are a great way to convey messages to others, and Cancer zodiac signs look amazing in so many that it's hard to say which shade would be best for healing. We associate red with being important ...

(Nanowerk Spotlight) Structural colors – the vibrant hues that arise not from pigments but from the interaction of light with microscopic structures – are among nature’s most captivating phenomena.

Derived from silica photonic crystals, inverse opal microspheres have a regularly connected porous structure and inherit structural color properties. Combined with the stable scaffold and the ...