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Title: Evolution of single gyroid photonic crystals in bird feathers

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
 [1];  [2]; ORCiD logo [2]; ORCiD logo [3];  [4]
  1. National Univ. of Singapore (Singapore). Yale-NUS College. Division of Science; Yale Univ., New Haven, CT (United States). Dept. of Ecology and Evolutionary Biology; Yale Univ., New Haven, CT (United States). Peabody Museum of Natural History
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
  3. Eidgenoessische Technische Hochschule (ETH), Zurich (Switzerland). Dept. of Materials
  4. Yale Univ., New Haven, CT (United States). Dept. of Ecology and Evolutionary Biology; Yale Univ., New Haven, CT (United States). Peabody Museum of Natural History

Vivid, saturated structural colors are conspicuous and important features of many animals. A rich diversity of three-dimensional periodic photonic nanostructures is found in the chitinaceous exoskeletons of invertebrates. Three-dimensional photonic nanostructures have been described in bird feathers, but they are typically quasi-ordered. Here, we report bicontinuous single gyroid beta-keratin and air photonic crystal networks in the feather barbs of blue-winged leafbirds (Chloropsis cochinchinensis sensu lato), which have evolved from ancestral quasi-ordered channel-type nanostructures. Self-assembled avian photonic crystals may serve as inspiration for multifunctional applications, as they suggest efficient, alternative routes to single gyroid synthesis at optical length scales, which has been experimentally elusive.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Yale Univ., New Haven, CT (United States); Royal Society United Kingdom
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1815624
Alternate ID(s):
OSTI ID: 1832176
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Vol. 118, Issue 23; ISSN 0027-8424
Publisher:
National Academy of SciencesCopyright Statement
Country of Publication:
United States
Language:
English

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