Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/139451
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dc.contributor.authorAmini, Shahrouzen_US
dc.contributor.authorTadayon, Maryamen_US
dc.contributor.authorChua, Julianto Q. Isaiahen_US
dc.contributor.authorMiserez, Alien_US
dc.date.accessioned2020-05-19T08:59:55Z-
dc.date.available2020-05-19T08:59:55Z-
dc.date.issued2018-
dc.identifier.citationAmini, S., Tadayon, M., Chua, J. Q. I., & Miserez, A. (2018). Multi-scale structural design and biomechanics of the pistol shrimp snapper claw. Acta Biomaterialia, 73, 449-457. doi:10.1016/j.actbio.2018.04.038en_US
dc.identifier.issn1742-7061en_US
dc.identifier.urihttps://hdl.handle.net/10356/139451-
dc.description.abstractThe Arthropoda, the largest phylum of the Animal Kingdom, have successfully evolved to survive various ecological constraints under a wide range of environmental conditions. Central to this survival are the structural designs developed in their exoskeletons and their raptorial appendages for protection and hunting. One such example, the pistol shrimp, is a shallow-water crustacean that is well-known for its aggressive hunting behavior, using its snapper claw to trigger the nucleation of cavitation bubbles that strike targets. In this study, we conducted a multi-scale structural/nanomechanics relationship study of this biotool to analyze its mechanical response to contact stresses. We found that the pistol shrimp snapper claw, which exhibits the capacity to emit a high-velocity water jet during rapid closure actions, is more brittle than other mineralized biotools, exhibiting accelerated wear damage under contact stresses. However, due to an angular offset between the dactylus and pollex of the snapper claw, the appendage never engages in any mechanical contact during the snapping action. This feature is in stark contrast to that reported in other fast raptorial appendages of crustaceans, notably the mantis shrimp dactyl club, which is designed to shatter close range targets in contact mode and exhibits a superior resistance to contact damage and wear. These findings suggest that adaptation of hunting appendages goes beyond their macroscopic morphology, and that multi-scale structural design concomitantly adapted to function, with enhanced structural complexification for tools that are subjected to more intense contact stresses.en_US
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en_US
dc.language.isoenen_US
dc.relation.ispartofActa biomaterialiaen_US
dc.rights© 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.en_US
dc.subjectEngineering::Materialsen_US
dc.titleMulti-scale structural design and biomechanics of the pistol shrimp snapper clawen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science & Engineeringen_US
dc.contributor.schoolSchool of Biological Sciencesen_US
dc.contributor.organizationCentre for Biomimetic Sensor Scienceen_US
dc.identifier.doi10.1016/j.actbio.2018.04.038-
dc.identifier.pmid29684626-
dc.identifier.scopus2-s2.0-85046118703-
dc.identifier.volume73en_US
dc.identifier.spage449en_US
dc.identifier.epage457en_US
dc.subject.keywordsCrustaceansen_US
dc.subject.keywordsAppendagesen_US
item.grantfulltextnone-
item.fulltextNo Fulltext-
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