Polymer Opals

Squeezing out opal-like colours by the mile

03 June 2016

Researchers have devised a new method for stacking microscopic marbles into regular layers, producing intriguing materials which scatter light into intense colours, and which change colour when twisted or stretched.

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Trapping the light fantastic

16 June 2014

The development of a ‘nanobarrel’ that traps and concentrates light onto single molecules could be used as a low-cost and reliable diagnostic test.

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