Scientists create brilliant white material without a drop of white pigment
Researchers have developed a new foam-based material that achieves a brilliant white appearance through structural light scattering rather than chemical pigments. This innovation aims to provide a safer, eco-friendly alternative to titanium dioxide and PFAS chemicals in packaging and coatings.
Why it matters
Replacing toxic pigments and persistent chemicals like PFAS with structural alternatives could significantly reduce environmental pollution and health risks associated with consumer goods.
Look closely at Hokusai's The Great Wave off Kanagawa , one of Japan's most famous works of art, and the brilliant whites seem almost painted onto the scene. Yet the white foam of the waves, the snow covering Mount Fuji, and the clouds in the sky contain no white pigment at all. Their brightness comes from light scattering off the exposed fibers of the traditional washi paper.
This effect is known as structural whiteness. Rather than relying on a colored substance, it emerges from the way a material's microscopic structure interacts with light.
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