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World's smallest smiley faces made with 'DNA origami'
ricknight | March 16, 2006 at 04:30 amby
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The world's tiniest smiley faces measuring a few billionths of a metre across have been created by folding strands of DNA like origami. The feat was accomplished after Paul Rothemund at the California Institute of Technology simplified how to create complex structures at the nanoscale.