Publication Date:
2012-06-09
Description:
Nature has evolved efficient strategies to synthesize complex mineralized structures that exhibit exceptional damage tolerance. One such example is found in the hypermineralized hammer-like dactyl clubs of the stomatopods, a group of highly aggressive marine crustaceans. The dactyl clubs from one species, Odontodactylus scyllarus, exhibit an impressive set of characteristics adapted for surviving high-velocity impacts on the heavily mineralized prey on which they feed. Consisting of a multiphase composite of oriented crystalline hydroxyapatite and amorphous calcium phosphate and carbonate, in conjunction with a highly expanded helicoidal organization of the fibrillar chitinous organic matrix, these structures display several effective lines of defense against catastrophic failure during repetitive high-energy loading events.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weaver, James C -- Milliron, Garrett W -- Miserez, Ali -- Evans-Lutterodt, Kenneth -- Herrera, Steven -- Gallana, Isaias -- Mershon, William J -- Swanson, Brook -- Zavattieri, Pablo -- DiMasi, Elaine -- Kisailus, David -- New York, N.Y. -- Science. 2012 Jun 8;336(6086):1275-80. doi: 10.1126/science.1218764.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 01238, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22679090" target="_blank"〉PubMed〈/a〉
Keywords:
Animal Structures/*anatomy & histology/chemistry/physiology/ultrastructure
;
Animals
;
Biomechanical Phenomena
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Calcium/analysis
;
Calcium Carbonate/analysis
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Calcium Phosphates/analysis
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Chitin/analysis
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Crustacea/*anatomy & histology/chemistry/*physiology
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Crystallization
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Durapatite/analysis
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Finite Element Analysis
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Microscopy, Electron, Scanning
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Phosphorus/analysis
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Stress, Mechanical
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X-Ray Diffraction
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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