Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/9033
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dc.contributor.authorLingham-Soliar, T-
dc.contributor.authorBonser, RHC-
dc.contributor.authorWesley-Smith, J-
dc.date.accessioned2014-09-09T10:46:00Z-
dc.date.available2014-09-09T10:46:00Z-
dc.date.issued2010-
dc.identifier.citationProceedings of the Royal Society B: Biological Sciences, 277(1685), 1161 - 1168, 2010en_US
dc.identifier.issn0962-8452-
dc.identifier.urihttp://rspb.royalsocietypublishing.org/content/277/1685/1161en
dc.identifier.urihttp://bura.brunel.ac.uk/handle/2438/9033-
dc.descriptionThis article is available open access through the publisher’s website at the link below. Copyright @ 2009 The Royal Society.en_US
dc.description.abstractFlight necessitates that the feather rachis is extremely tough and light. Yet, the crucial filamentous hierarchy of the rachis is unknown—study hindered by the tight chemical bonding between the filaments and matrix. We used novel microbial biodegradation to delineate the fibres of the rachidial cortex in situ. It revealed the thickest keratin filaments known to date (factor >10), approximately 6 µm thick, extending predominantly axially but with a small outer circumferential component. Near-periodic thickened nodes of the fibres are staggered with those in adjacent fibres in two- and three-dimensional planes, creating a fibre–matrix texture with high attributes for crack stopping and resistance to transverse cutting. Close association of the fibre layer with the underlying ‘spongy’ medulloid pith indicates the potential for higher buckling loads and greater elastic recoil. Strikingly, the fibres are similar in dimensions and form to the free filaments of the feather vane and plumulaceous and embryonic down, the syncitial barbules, but, identified for the first time in 140+ years of study in a new location—as a major structural component of the rachis. Early in feather evolution, syncitial barbules were consolidated in a robust central rachis, definitively characterizing the avian lineage of keratin.en_US
dc.languageEnglish-
dc.language.isoenen_US
dc.publisherThe Royal Societyen_US
dc.subjectFeather rachisen_US
dc.subjectMatrix biodegradationen_US
dc.subjectFibres/syncitial barbulesen_US
dc.subjectBiomechanicsen_US
dc.subjectEvolutionen_US
dc.titleSelective biodegradation of keratin matrix in feather rachis reveals classic bioengineeringen_US
dc.typeArticleen_US
dc.identifier.doihttp://dx.doi.org/10.1098/rspb.2009.1980-
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pubs.organisational-data/Brunel/Brunel Staff by College/Department/Division/College of Engineering, Design and Physical Sciences-
pubs.organisational-data/Brunel/Brunel Staff by College/Department/Division/College of Engineering, Design and Physical Sciences/Dept of Design-
pubs.organisational-data/Brunel/Brunel Staff by College/Department/Division/College of Engineering, Design and Physical Sciences/Dept of Design/Design-
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pubs.organisational-data/Brunel/Brunel Staff by Institute/Theme/Institute of Materials and Manufacturing-
pubs.organisational-data/Brunel/Brunel Staff by Institute/Theme/Institute of Materials and Manufacturing/Design for Sustainable Manufacturing-
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pubs.organisational-data/Brunel/University Research Centres and Groups/Brunel Business School - URCs and Groups-
pubs.organisational-data/Brunel/University Research Centres and Groups/Brunel Business School - URCs and Groups/Centre for Research into Entrepreneurship, International Business and Innovation in Emerging Markets-
pubs.organisational-data/Brunel/University Research Centres and Groups/School of Health Sciences and Social Care - URCs and Groups-
pubs.organisational-data/Brunel/University Research Centres and Groups/School of Health Sciences and Social Care - URCs and Groups/Brunel Institute for Ageing Studies-
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pubs.organisational-data/Brunel/University Research Centres and Groups/School of Health Sciences and Social Care - URCs and Groups/Centre for Systems and Synthetic Biology-
Appears in Collections:Design
Dept of Design Research Papers

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