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Tunable structural color in organisms and photonic materials for design of bioinspired materials

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Author(s): Hiroshi Fudouzi

Journal: Science and Technology of Advanced Materials
ISSN 1468-6996

Volume: 12;
Issue: 6;
Start page: 064704;
Date: 2011;
Original page

ABSTRACT
In this paper, the key topics of tunable structural color in biology and material science are overviewed. Color in biology is considered for selected groups of tropical fish, octopus, squid and beetle. It is caused by nanoplates in iridophores and varies with their spacing, tilting angle and refractive index. These examples may provide valuable hints for the bioinspired design of photonic materials. 1D multilayer films and 3D colloidal crystals with tunable structural color are overviewed from the viewpoint of advanced materials. The tunability of structural color by swelling and strain is demonstrated on an example of opal composites.
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