Cellulose elementary fibril orientation in the spruce S1-2 transition layer

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorReza, Mehedien_US
dc.contributor.authorBertinetto, Carloen_US
dc.contributor.authorKesari, Kavindra Kumaren_US
dc.contributor.authorEngelhardt, Peteren_US
dc.contributor.authorRuokolainen, Janneen_US
dc.contributor.authorVuorinen, Tapanien_US
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.departmentDepartment of Bioproducts and Biosystemsen
dc.contributor.groupauthorMolecular Materialsen
dc.contributor.groupauthorWood Chemistryen
dc.date.accessioned2019-04-02T06:57:41Z
dc.date.available2019-04-02T06:57:41Z
dc.date.issued2019-03-07en_US
dc.description.abstractThe tight organization of major wood cell wall polymers limits the swellability, solubility and reactivity of cellulose fibers during the production of regenerated textile fibers, nanocellulose, bioethanol, and many other value-added products. However, the ultrastructural assembly of cellulose elementary fibrils (EF) and matrix materials in one of the outer layers, i.e. S 1-2 transition layer of wood cell wall, is far from being understood. Here, single-axis electron tomography on ultrathin spruce sections was applied to observe the three-dimensional (3D) structure of the S 1-2 layer. The nanoscale geometries of the EFs were further quantitatively modeled through mathematical fitting of the tomographic subvolumes by suitable parametric space curves. The results showed that crisscross, bundled and parallel EF organizations are all present in this layer; the former two exhibit a denser structure. Several quantitative measures such as distances and angles were obtained for the analyzed structures. The result obtained in this study suggests that the S 1-2 transition layer differs in structure than the principal cell wall layers. The structural differences and its possible role in wood cell wall have been discussed. These results will enhance our understanding of the swellability, accessibility and solubility of woody biomass for its conversion into the aforementioned value-added products.en
dc.description.versionPeer revieweden
dc.format.extent1-7
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationReza, M, Bertinetto, C, Kesari, K K, Engelhardt, P, Ruokolainen, J & Vuorinen, T 2019, ' Cellulose elementary fibril orientation in the spruce S 1-2 transition layer ', Scientific Reports, vol. 9, no. 1, 3869, pp. 1-7 . https://doi.org/10.1038/s41598-019-40303-4en
dc.identifier.doi10.1038/s41598-019-40303-4en_US
dc.identifier.issn2045-2322
dc.identifier.otherPURE UUID: d1d42999-c9d9-4dc0-a0c0-f5a91083f8ecen_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/d1d42999-c9d9-4dc0-a0c0-f5a91083f8ecen_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85062609813&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/32620157/s41598_019_40303_4.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/37388
dc.identifier.urnURN:NBN:fi:aalto-201904022519
dc.language.isoenen
dc.publisherNATURE PUBLISHING GROUP
dc.relation.ispartofseriesScientific Reportsen
dc.relation.ispartofseriesVolume 9, issue 1en
dc.rightsopenAccessen
dc.subject.keywordCELL-WALLen_US
dc.subject.keywordELECTRON TOMOGRAPHYen_US
dc.subject.keywordFE-SEMen_US
dc.subject.keywordWOODen_US
dc.subject.keywordAPPLICABILITYen_US
dc.subject.keywordVISUALIZATIONen_US
dc.subject.keywordMICROFIBRILSen_US
dc.subject.keywordORGANIZATIONen_US
dc.subject.keywordAGGREGATIONen_US
dc.subject.keywordBIOMASSen_US
dc.titleCellulose elementary fibril orientation in the spruce S1-2 transition layeren
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion

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