How Worried Should We Be About Artificial Food Dye? Here’s What Science Has (And Hasn't) Confirmed.
Ancient peoples used coloring from paprika, turmeric, saffron, iron, lead oxides and other sources in food, drugs, cosmetics ...
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Red onion dye helps solar cells stay safe from harmful UV rays
Researchers from the University of Turku, Finland, have found a new way to protect solar cells from harmful UV radiation ...
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Nanocellulose treated with red onion dye provides effective UV protection for solar cells
Researchers at the University of Turku, Finland, investigated how to use bio-based materials to produce effective UV ...