A Sinusoidally Architected Helicoidal Biocomposite

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 30 May 2016Embargo end date: 01 Jan 2016 English Publisher:WileyJournal:Advanced Materials, volume 28, pages 6,835-6,844 (issn: 0935-9648, eissn: 1521-4095,

Copyright policy )Funded by:NSF | CAREER: Multiscale Invest...

Authors: Yaraghi, Nicholas A.; Guarín-Zapata, Nicolás; Grunenfelder, Lessa K.; Hintsala, Eric; Bhowmick, Sanjit; Hiller, Jon M.; Betts, Mark; +7 Authors

doi: 10.1002/adma.201600786 , 10.48550/arxiv.1604.07798

pmid: 27238289

arXiv: 1604.07798

A Sinusoidally Architected Helicoidal Biocomposite

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Abstract

A fibrous herringbone-modified helicoidal architecture is identified within the exocuticle of an impact-resistant crustacean appendage. This previously unreported composite microstructure, which features highly textured apatite mineral templated by an alpha-chitin matrix, provides enhanced stress redistribution and energy absorption over the traditional helicoidal design under compressive loading. Nanoscale toughening mechanisms are also identified using high load nanoindentation and in-situ TEM picoindentation.

6 figures. Published in Advanced Materials 2016

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Keywords

Condensed Matter - Materials Science, 74E10, 74A40, XXXXXX - Unknown, Materials Science (cond-mat.mtrl-sci), FOS: Physical sciences, biomineralization, composites, proteins

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