Wednesday, May 15, 2013

African Berries Are World's Most Intense Natural Color

Image via PNAS

Pollia condensata  grows in Africa. Its intensely coloured berries are inedible and are used mostly for decoration. The vibrant metallic hue does not come from pigment. The most intense color ever studied in biological tissue is the result of nanoscale-sized cellulose strands that scatter light as they interact with one another. 

Read more at Smithsonian
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