Journal
SCIENCE
Volume 336, Issue 6086, Pages 1275-1280Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1218764
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Funding
- National Science Foundation [DMR-0906770]
- Singapore National Research Foundation (NRF)
- Air Force Office of Scientific Research [AFOSR-FA9550-10-1-0322, AFOSR-FA9550-10-1-0209]
- U.S. Department of Energy [DE-AC02-98CH10886]
- Directorate For Geosciences
- Division Of Earth Sciences [0948842] Funding Source: National Science Foundation
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [0906770] Funding Source: National Science Foundation
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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.
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