Contributions of intermolecular bonding and lubrication to the mechanical behavior of a natural armor

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dc.citation.journalTitleACTA BIOMATERIALIA
dc.contributor.authorJiang, H.
dc.contributor.authorGhods, S.
dc.contributor.authorWeller, E.
dc.contributor.authorWaddell, S.
dc.contributor.authorOssa, E.A.
dc.contributor.authorYang, F.
dc.contributor.authorArola, D.
dc.contributor.departmentUniversidad EAFIT. Departamento de Ingeniería de Producciónspa
dc.contributor.researchgroupMateriales de Ingenieríaspa
dc.creatorJiang, H.
dc.creatorGhods, S.
dc.creatorWeller, E.
dc.creatorWaddell, S.
dc.creatorOssa, E.A.
dc.creatorYang, F.
dc.creatorArola, D.
dc.date.accessioned2021-04-12T21:26:45Z
dc.date.available2021-04-12T21:26:45Z
dc.date.issued2020-01-01
dc.description.abstractAmong many dermal armors, fish scales have become a source of inspiration in the pursuit of “next-generation” structural materials. Although fish scales function in a hydrated environment, the role of water and intermolecular hydrogen bonding to their unique structural behavior has not been elucidated. Water molecules reside within and adjacent to the interpeptide locations of the collagen fibrils of the elasmodine and provide lubrication to the protein molecules during deformation. We evaluated the contributions of this lubrication and the intermolecular bonding to the mechanical behavior of elasmodine scales from the Black Carp (Mylopharyngodon piceus). Scales were exposed to polar solvents, followed by axial loading to failure and the deformation mechanisms were characterized via optical mechanics. Displacement of intermolecular water molecules by liquid polar solvents caused significant (p = 0.05) increases in stiffness, strength and toughness of the scales. Removal of this lubrication decreased the capacity for non-linear deformation and toughness, which results from the increased resistance to fibril rotations and sliding caused by molecular friction. The intermolecular lubrication is a key component of the “protecto-flexibility” of scales and these natural armors as a system; it can serve as an important component of biomimetic-driven designs for flexible armor systems. Statement of Significance: The natural armor of fish has become a topic of substantial scientific interest. Hydration is important to these materials as water molecules reside within the interpeptide locations of the collagen fibrils of the elasmodine and provide lubrication to the protein molecules during deformation. We explored the opportunity for tuning the mechanical behavior of scales as a model for next-generation engineering materials by adjusting the extent of hydrogen bonding with polar solvents and the corresponding interpeptide molecular lubrication. Removal of this lubrication decreased the capacity for non-linear deformation and toughness due to an increase in resistance to fibril rotations and sliding as imparted by molecular friction. We show that intermolecular lubrication is a key component of the “protecto-flexibility” of natural armors and it is an essential element of biomimetic approaches to develop flexible armor systems. © 2020 Acta Materialia Inc.eng
dc.identifierhttps://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=11943
dc.identifier.doi10.1016/j.actbio.2020.02.014
dc.identifier.issn17427061
dc.identifier.issn18787568
dc.identifier.otherWOS;000527368300019
dc.identifier.otherPUBMED;32084601
dc.identifier.otherSCOPUS;2-s2.0-85081004667
dc.identifier.urihttp://hdl.handle.net/10784/29132
dc.language.isoeng
dc.publisherELSEVIER SCI LTD
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85081004667&doi=10.1016%2fj.actbio.2020.02.014&partnerID=40&md5=8ec84a9d95fd2d2e32d169f09b3003f7
dc.rightshttps://v2.sherpa.ac.uk/id/publication/issn/1742-7061
dc.sourceACTA BIOMATERIALIA
dc.subjectacetoneeng
dc.subjectalcoholeng
dc.subjectbalanced salt solutioneng
dc.subjecthanks balanced salt solutioneng
dc.subjectmethanoleng
dc.subjectunclassified drugeng
dc.subjectwatereng
dc.subjectArticleeng
dc.subjectbiomechanicseng
dc.subjectchemical bondeng
dc.subjectcollagen fibrileng
dc.subjectcontrolled studyeng
dc.subjectdigital image correlationeng
dc.subjectelectronic speckle pattern interferometryeng
dc.subjectevaluation studyeng
dc.subjectexoskeletoneng
dc.subjectfish scaleeng
dc.subjecthydrationeng
dc.subjectinterferometryeng
dc.subjectlubricationeng
dc.subjectmeasurementeng
dc.subjectmechanicseng
dc.subjectMylopharyngodoneng
dc.subjectMylopharyngodon piceuseng
dc.subjectnonhumaneng
dc.subjectopticseng
dc.subjectphysical parameterseng
dc.subjectphysical resistanceeng
dc.subjectpriority journaleng
dc.subjectrigidityeng
dc.subjectstress strain relationshipeng
dc.subjecttensile strengtheng
dc.subjecttoughnesseng
dc.subjectwater contenteng
dc.subjectYoung moduluseng
dc.titleContributions of intermolecular bonding and lubrication to the mechanical behavior of a natural armoreng
dc.typeinfo:eu-repo/semantics/articleeng
dc.typearticleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.typepublishedVersioneng
dc.type.localArtículospa

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