Kobe University researchers have created a new "structural color ink," just 100-200 nanometers thick, that shows bright colors from wide viewing angles, without fading, while weighing less than half a gram per square meter (0.002 oz per square foot).Regular paints and pigments absorb certain wavelengths of light and reflect others, but this tends to degrade them at the molecular level, leading to fading. Structural colors, on the other hand, reflect the full spectrum of light from parallel nanos...