Camouflage sheet inspired by octopus

Researchers lead by Prof. John Rogers (University of Illinois) have developed an integrated 'skin' with three layers contain color elements, a mechanism for changing colors and sensors that detect background patterns.  Although similar to function to the skin of cephalopods, the implement is quite different.  The system currently uses 1mm cells containing temperature-sensitive pigments that switch from black to transparent (allowing white to show through), current-driven actuators and photosensors.  The research required extensive collaboration between experts in the fields of biology, materials science, computing and electrical engineering.  A paper on the work is available at http://www.pnas.org/cgi/doi/10.1073/pnas.1410494111.

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