Finnish researchers created a biodegradable UV-filter from red onion dyes and nanocellulose that blocks 99.9% of harmful UV light and lets through 80% of useful sunshine. It outlasted petroleum-based plastics—ups solar tech and honors Earth’s materials.
(c) Abishek Hayare

Solar-Filter aus Zwiebelhaut macht Panels nachhaltiger

ZME SCIENCE

Forscher in Finnland entwickelten einen UV-Filter aus roter Zwiebel und Nanocellulose. Er blockiert 99,9 % der UV-Strahlung und lässt 80 % des nutzbaren Lichts durch. Langlebig und ökologisch – eine pflanzliche Lösung für die Solarzukunft.

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