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dc.contributor.author
Smith, Kathleen B.
dc.contributor.author
Tisserant, Jean-Nicolas
dc.contributor.author
Assenza, Salvatore
dc.contributor.author
Arcari, Mario
dc.contributor.author
Nyström, Gustav
dc.contributor.author
Mezzenga, Raffaele
dc.date.accessioned
2019-03-27T12:40:39Z
dc.date.available
2019-01-22T11:18:26Z
dc.date.available
2019-01-31T11:46:59Z
dc.date.available
2019-02-01T13:32:10Z
dc.date.available
2019-03-27T12:39:10Z
dc.date.available
2019-03-27T12:40:39Z
dc.date.issued
2019-02-20
dc.identifier.other
10.1002/advs.201801540
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/318484
dc.identifier.doi
10.3929/ethz-b-000318484
dc.description.abstract
Cellulose is a pervasive polymer, displaying hierarchical lengthscales and exceptional strength and stiffness. Cellulose's complex organization, however, also hinders the detailed understanding of the assembly, mesoscopic properties, and structure of individual cellulose building blocks. This study combines nanolithography with atomic force microscopy to unveil the properties and structure of single cellulose nanofibrils under weak geometrical confinement. By statistical analysis of the fibril morphology, it emerges that confinement induces both orientational ordering and self‐folding of the fibrils. Excluded volume simulations reveal that this effect does not arise from a fibril population bias applied by the confining slit, but rather that the fibril conformation itself changes under confinement, with self‐folding favoring fibril's free volume entropy. Moreover, a nonstochastics angular bending probability of the fibril kinks is measured, ruling out alternating amorphous–crystalline regions. These findings push forward the understanding of cellulose nanofibrils and may inspire the design of functional materials based on fibrous templates.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Wiley
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
alignment
en_US
dc.subject
cellulose nanofibrils
en_US
dc.subject
confinement
en_US
dc.subject
kink distribution
en_US
dc.subject
mesoscopic properties
en_US
dc.title
Confinement-Induced Ordering and Self-Folding of Cellulose Nanofibrils
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2018-12-18
ethz.journal.title
Advanced Science
ethz.journal.volume
6
en_US
ethz.journal.issue
4
en_US
ethz.pages.start
1801540
en_US
ethz.size
8 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Weinheim
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02070 - Dep. Gesundheitswiss. und Technologie / Dep. of Health Sciences and Technology::02701 - Inst.f. Lebensmittelwiss.,Ernährung,Ges. / Institute of Food, Nutrition, and Health::03857 - Mezzenga, Raffaele / Mezzenga, Raffaele
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02070 - Dep. Gesundheitswiss. und Technologie / Dep. of Health Sciences and Technology::02701 - Inst.f. Lebensmittelwiss.,Ernährung,Ges. / Institute of Food, Nutrition, and Health::03857 - Mezzenga, Raffaele / Mezzenga, Raffaele
en_US
ethz.date.deposited
2019-01-22T11:18:45Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2019-03-27T12:39:35Z
ethz.rosetta.lastUpdated
2019-03-27T12:40:45Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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