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Composition and Mechanical Properties of a Protein/Silica Hybrid Material Forming the Micron‐Thick Axial Filament in the Spicules of Marine Sponges
Author(s) -
Zlotnikov Igor,
Masic Admir,
Dauphin Yannicke,
Fratzl Peter,
Zolotoyabko Emil
Publication year - 2014
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201300485
Subject(s) - sponge spicule , nanoindentation , materials science , spicule , protein filament , raman spectroscopy , nanoscopic scale , elastic modulus , sponge , composite material , nanotechnology , optics , medicine , physics , anatomy , botany , biology
Nearly equal volume fractions of biosilica and proteins are found in the micron‐thick axial filament of the anchor spicule of the marine sponge Monorhaphis chuni . Chemical composition and mechanical properties of this unique composite material are characterized by confocal Raman spectroscopy and by nanoindentation and nanoscale elastic modulus mapping, respectively.