(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.

Blue sharks possess a secret hidden in their skin: a sophisticated arrangement of microscopic crystals and pigments that create their brilliant blue appearance — and may allow them to change color.

Mar 02, 2026 A crystal that changes fluorescence color and moves when heated Chemists discovered that a seemingly solid, nonporous crystal can 'come alive' when heated. A two-step transformation ...

Squeezing the crystal changes how closely the molecules interact, which changes the color of light it emits from green at low pressure (left) to red at high pressure (right). In pCP-H (lower crystals) ...