Journal
ADVANCED OPTICAL MATERIALS
Volume 2, Issue 11, Pages 1031-1037Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adom.201400279
Keywords
crab cuticles; chitin nanofibrils; chiral nematic order; photonics; mesoporosity; biomimetic materials
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Funding
- NSERC
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Photonic chitin membranes with the Bouligand structure are created from king crab endocuticles. Within the cuticle membranes, chitin nanofibrils are organized into a left-handed chiral nematic structure to evolve colorful, circularly polarized iridescence. The photonic porous chitin is used as a platform to make mesoporous silica and nitrogen-doped carbon replicas that mimic the twisted chitin nanofibril membranes.
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