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The striking coloration of the weevil Lamprocyphus augustus is the result of exoskeleton photonic structures with a diamond‐based lattice. Michael Bartl and co‐workers report on p. 107 on the development of a sol–gel templating method to convert these unique biopolymeric structures into high‐dielectric replicas. Theoretical, structural, and optical studies reveal these bioderived photonic crystals...
Photonic crystal scales with a diamond‐based lattice from the weevilLamprocyphus augustus are transformed into a high‐dielectric titania replica by a biotemplating double‐imprint route. Multidirectional optical reflectance spectroscopy of the replicated structure gives an angle‐independent reflection band in the visible spectrum, in agreement with photonic band structure calculations, which reveal...
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