Multi-Layer Structure that Protects from UV Rays

The nodeless danafern has adapted to growing in the dark shade but is prone to light damage, especially blue and violet wavelengths. A multilayer structure with a complex nanostructure in the leaves of these plants reflects away these wavelengths. This structure reflects out blue wavelengths, creating a blue color through constructive interference visible at certain viewing angles. Engineers and designers may be inspired to develop novel structural protective coatings for buildings, vehicles, or apparel that reflect away certain wavelengths.