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Cited by 498

The DOI matches its Crossref record; 63 of the 63 references it cites were found in a registry or an index.

Understanding nanocellulose chirality and structure–properties relationship at the single fibril level

Open access
Usov, Ivan, Nyström, Gustav, Adamcik, Jozef, Handschin, Stephan, Schütz, Christina, Fall, Andreas, Bergström, Lennart, Mezzenga, Raffaele·2015·Nature Communications

Abstract

Nanocellulose fibrils are ubiquitous in nature and nanotechnologies but their mesoscopic structural assembly is not yet fully understood. Here we study the structural features of rod-like cellulose nanoparticles on a single particle level, by applying statistical polymer physics concepts on electron and atomic force microscopy images, and we assess their physical properties via quantitative nanomechanical mapping. We show evidence of right-handed chirality, observed on both bundles and on single fibrils. Statistical analysis of contours from microscopy images shows a non-Gaussian kink angle distribution. This is inconsistent with a structure consisting of alternating amorphous and crystalline domains along the contour and supports process-induced kink formation. The intrinsic mechanical properties of nanocellulose are extracted from nanoindentation and persistence length method for transversal and longitudinal directions, respectively. The structural analysis is pushed to the level of single cellulose polymer chains, and their smallest associated unit with a proposed 2 × 2 chain-packing arrangement.

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Crossref · 10.1038/ncomms8564

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Metadata

Authors
Usov, I., Nyström, G., Adamcik, J., Handschin, S., Schütz, C., Fall, A., Bergström, L., & Mezzenga, R.
Venue
Nature Communications
Published
2015-06-25
Volume
6
Issue
1
Pages
7564-7564
ISSN
2041-1723 (ISSN-L)
OpenAlex
W1678917879
Cited by
498
References
63
FWCI
14.18
Type
journal article
Language
en
Open access
gold

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