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The stomatopod dactyl club: A formidable damage-tolerant biological hammer
Weaver, J.C.; Milliron, G.W.; Miserez, A.; Evans-Lutterodt, K.; Herrera, S.; Gallana, I.; Mershon, W.J.; Swanson, B.; Zavattieri, P.; DiMasi, E.; Kisailus, D. (2012). The stomatopod dactyl club: A formidable damage-tolerant biological hammer. Science (Wash.) 336(6086): 1275-1280.
In: Science (Washington). American Association for the Advancement of Science: New York, N.Y. ISSN 0036-8075, more
Peer reviewed article  

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Authors  Top 
  • Weaver, J.C.
  • Milliron, G.W.
  • Miserez, A.
  • Evans-Lutterodt, K.
  • Herrera, S.
  • Gallana, I.
  • Mershon, W.J.
  • Swanson, B.
  • Zavattieri, P.
  • DiMasi, E.
  • Kisailus, D.

    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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