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Hierarchical structure of marine shell biomaterials: biomechanical functionalization of calcite by brachiopods

Schmahl, Wolfgang. W. and Griesshaber, Erika and Kelm, Klemens and Goetz, Andreas and Jordan, Guntram and Ball, Alexander and Xu, Dayin and Merkel, Casjen and Brand, Uwe (2012) Hierarchical structure of marine shell biomaterials: biomechanical functionalization of calcite by brachiopods. Zeitschrift für Kristallographie, 227, pp. 793-804. Oldenbourg Verlag. DOI: 10.1524/zkri.2012.1542 ISSN 2194-4946

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Official URL: http://www.oldenbourg-link.com/doi/abs/10.1524/zkri.2012.1542

Abstract

Biologic structural materials for skeletons or teeth show a hierarchical architecture, where organic macromolecules and mineral substance form a hybrid composite material with its components inter-weaved on many length scales. On the nanostructure level brachiopods form hybrid composite mesocrystals of calcite with occluded organic molecules. On the microstructure level several types of materials are produced, on which the electron back-scatter diffraction (EBSD) technique gives insight in texture and architecture. We describe the calcite single-crystal fiber composite architecture of the secondary layer involving organic matrix membranes, the competitive- growth texture of the columnar layer and the nanostructuring of the primary layer. In the overall skeleton the organic biopolymers provide flexibility and tensile strength while the mineral provides a high elastic modulus, compressive strength, hardness and resistance to abrasion. The hierarchical composite architecture, from the nanostructure to the macroscopic level provides fracture toughness. The morphogenesis of the biomaterial as a whole and of the mineral crystals is guided by the organic matrix and most probably involves amorphous calcium carbonate (ACC) precursors. In this paper we review the hierarchical architecture of rhynchonelliform brachiopod shells, which is very distinct from mollusk nacre.

Item URL in elib:https://elib.dlr.de/78950/
Document Type:Article
Title:Hierarchical structure of marine shell biomaterials: biomechanical functionalization of calcite by brachiopods
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schmahl, Wolfgang. W.GeoBioCenter LMU and Dept. of Ear th and Environmental Sciences, LMU Munich, GermanyUNSPECIFIED
Griesshaber, ErikaGeoBioCenter LMU and Dept. of Ear th and Environmental Sciences, LMU Munich, GermanyUNSPECIFIED
Kelm, Klemens klemens.kelm (at) dlr.deUNSPECIFIED
Goetz, AndreasGeoBioCenter LMU and Dept. of Ear th and Environmental Sciences, LMU Munich, GermanyUNSPECIFIED
Jordan, GuntramGeoBioCenter LMU and Dept. of Ear th and Environmental Sciences, LMU Munich, GermanyUNSPECIFIED
Ball, AlexanderNatural History Museum, London, UKUNSPECIFIED
Xu, DayinGeoBioCenter LMU and Dept. of Ear th and Environmental Sciences, LMU Munich, GermanyUNSPECIFIED
Merkel, CasjenGeoBioCenter LMU and Dept. of Ear th and Environmental Sciences, LMU Munich, GermanyUNSPECIFIED
Brand, UweDept. of Earth Sciences, Brock University, St. Catharines, Ontario, CanadaUNSPECIFIED
Date:November 2012
Journal or Publication Title:Zeitschrift für Kristallographie
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:No
In ISI Web of Science:Yes
Volume:227
DOI :10.1524/zkri.2012.1542
Page Range:pp. 793-804
Editors:
EditorsEmail
Antipov, EvgenyUNSPECIFIED
Bismaier, UlrichUNSPECIFIED
Huppertz, HubertUNSPECIFIED
Petriceck, VaclavUNSPECIFIED
Pöttgen, RainerUNSPECIFIED
Schmahl, WolfgangUNSPECIFIED
Tiekink, EdwardUNSPECIFIED
Zhou, XiaodongUNSPECIFIED
Publisher:Oldenbourg Verlag
ISSN: 2194-4946
Status:Published
Keywords:Biomineralization, Calcite, Texture, Raman spectroscopy, Hierarchical composite, Vital effect
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures & Materials (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Administrativ-Technische Betriebsleitung / Mikroanalytik und Metallographie
Deposited By: Kelm, Dr. Klemens
Deposited On:27 Nov 2012 09:20
Last Modified:27 Nov 2012 09:20

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