The limiting layer of fish scales: Structure and properties

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dc.citation.journalTitleACTA BIOMATERIALIA
dc.contributor.authorArola D.
dc.contributor.authorMurcia S.
dc.contributor.authorStossel M.
dc.contributor.authorPahuja R.
dc.contributor.authorLinley T.
dc.contributor.authorDevaraj A.
dc.contributor.authorRamulu M.
dc.contributor.authorOssa E.A.
dc.contributor.authorWang J.
dc.contributor.departmentUniversidad EAFIT. Departamento de Ingeniería de Producciónspa
dc.contributor.researchgroupMateriales de Ingenieríaspa
dc.creatorArola D.
dc.creatorMurcia S.
dc.creatorStossel M.
dc.creatorPahuja R.
dc.creatorLinley T.
dc.creatorDevaraj A.
dc.creatorRamulu M.
dc.creatorOssa E.A.
dc.creatorWang J.
dc.date.accessioned2021-04-12T21:26:44Z
dc.date.available2021-04-12T21:26:44Z
dc.date.issued2018-02-01
dc.description.abstractFish scales serve as a flexible natural armor that have received increasing attention across the materials community. Most efforts in this area have focused on the composite structure of the predominately organic elasmodine, and limited work addresses the highly mineralized external portion known as the Limiting Layer (LL). This coating serves as the first barrier to external threats and plays an important role in resisting puncture. In this investigation the structure, composition and mechanical behavior of the LL were explored for three different fish, including the arapaima (Arapaima gigas), the tarpon (Megalops atlanticus) and the carp (Cyprinus carpio). The scales of these three fish have received the most attention within the materials community. Features of the LL were evaluated with respect to anatomical position to distinguish site-specific functional differences. Results show that there are significant differences in the surface morphology of the LL from posterior and anterior regions in the scales, and between the three fish species. The calcium to phosphorus ratio and the mineral to collagen ratios of the LL are not equivalent among the three fish. Results from nanoindentation showed that the LL of tarpon scales is the hardest, followed by the carp and the arapaima and the differences in hardness are related to the apatite structure, possibly induced by the growth rate and environment of each fish.STATEMENT OF SIGNIFICANCE: The natural armor of fish, turtles and other animals, has become a topic of substantial scientific interest. The majority of investigations have focused on the more highly organic layer known as the elasmodine. The present study addresses the highly mineralized external portion known as the Limiting Layer (LL). Specifically, the structure, composition and mechanical behavior of the LL were explored for three different fish, including the arapaima (Arapaima gigas), the tarpon (Megalops atlanticus) and the carp (Cyprinus carpio). Results show that there are significant differences in the surface morphology of the LL from posterior and anterior regions in the scales, and between the three species. In addition, the composition of the LL is also unique among the three fish. Results from nanoindentation showed that the LL of tarpon scales is the hardest, followed by the carp and the arapaima and the differences in hardness are related to the apatite structure, possibly induced by the growth rate and environment of each fish. In addition, a new feature was indentified in the LL, which has not been discussed before. As such, we feel this work is unique and makes a significant contribution to the field. Copyright © 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.eng
dc.identifierhttps://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=7862
dc.identifier.doi10.1016/j.actbio.2017.12.011
dc.identifier.issn17427061
dc.identifier.issn18787568
dc.identifier.otherWOS;000424853600028
dc.identifier.otherPUBMED;29248639
dc.identifier.otherSCOPUS;2-s2.0-85033407105
dc.identifier.urihttp://hdl.handle.net/10784/29115
dc.language.isoeng
dc.publisherELSEVIER SCI LTD
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85033407105&doi=10.1016%2fj.actbio.2017.12.011&partnerID=40&md5=9f58a7d8a1149aa2fa1d1b541ead51a6
dc.rightshttps://v2.sherpa.ac.uk/id/publication/issn/1742-7061
dc.sourceACTA BIOMATERIALIA
dc.subjectanatomy and histologyeng
dc.subjectanimaleng
dc.subjectanimal scaleseng
dc.subjectfisheng
dc.subjectfluorescence imagingeng
dc.subjectmechanicseng
dc.subjectRaman spectrometryeng
dc.subjectsurface propertyeng
dc.subjectAnimal Scaleseng
dc.subjectAnimalseng
dc.subjectFisheseng
dc.subjectMechanical Phenomenaeng
dc.subjectOptical Imagingeng
dc.subjectSpectrum Analysiseng
dc.subjectRamaneng
dc.subjectSurface Propertieseng
dc.titleThe limiting layer of fish scales: Structure and propertieseng
dc.typeinfo:eu-repo/semantics/articleeng
dc.typearticleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.typepublishedVersioneng
dc.type.localArtículospa

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