This super-white coating was inspired by a beetle’s scales

Made from cellulose, the sustainable material is an alternative to titanium dioxide. Ikea is already experimenting with it.

[Source Photos: Seprify, Dwi Cahyono/Getty Images]

For decades, titanium dioxide has been used to make products bright white, from paint to powdered donuts. It’s effective, cheap, and hard to replace. But after the European Union (EU) banned it as a food additive in 2022 over potential health risks, companies have been searching for better........

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