Evolution of single gyroid photonic crystals in bird feathers
- 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
- Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- Eidgenoessische Technische Hochschule (ETH), Zurich (Switzerland). Dept. of Materials
- 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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