Octopus-inspired camouflage design
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Bio-inspired camouflage design

Inspired by the rapid camouflage systems of octopuses and cuttlefish, engineers in the US have produced a flexible material that changes colour depending on its environment.

The new design features a grid of 1mm cells, which contain a temperature-sensitive dye and can switch colours within one or two seconds.

So far it only responds in black-and-white, but the researchers hope that the principles of their design will have commercial and military applications.

In this video, you can see the cells rapidly changing colour as a light-coloured square is moved around behind the material.

Video courtesy of PNAS and Prof John A Rogers, University of Illinois

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