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Literature DB >> 27238289

A Sinusoidally Architected Helicoidal Biocomposite.

Nicholas A Yaraghi¹, Nicolás Guarín-Zapata², Lessa K Grunenfelder³, Eric Hintsala⁴, Sanjit Bhowmick⁵, Jon M Hiller⁶, Mark Betts⁶, Edward L Principe⁶, Jae-Young Jung⁷, Leigh Sheppard⁸, Richard Wuhrer⁸, Joanna McKittrick⁷, Pablo D Zavattieri², David Kisailus^1,3.

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 transmission electron microscopy picoindentation.

Entities: Chemical

Keywords: biomineral; composites; impact; toughness; ultrastructure

Year: 2016 PMID： 27238289 DOI： 10.1002/adma.201600786

Source DB: PubMed Journal: Adv Mater ISSN： 0935-9648 Impact factor: 30.849

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Cited

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