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Chiral self-assembly of cellulose nanocrystals is driven by crystallite bundles

Nature communications, 2022-05, Vol.13 (1), p.2657-9, Article 2657 [Peer Reviewed Journal]

2022. The Author(s). ;The Author(s) 2022. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;The Author(s) 2022 ;ISSN: 2041-1723 ;EISSN: 2041-1723 ;DOI: 10.1038/s41467-022-30226-6 ;PMID: 35550506

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Title:
Chiral self-assembly of cellulose nanocrystals is driven by crystallite bundles
Author: Parton, Thomas G ; Parker, Richard M ; van de Kerkhof, Gea T ; Narkevicius, Aurimas ; Haataja, Johannes S ; Frka-Petesic, Bruno ; Vignolini, Silvia
Subjects: Cellulose ; Cellulose - chemistry ; Chirality ; Crystallites ; Crystals ; Liquid crystals ; Liquid Crystals - chemistry ; Mesophase ; Nanocrystals ; Nanoparticles ; Nanoparticles - chemistry ; Optics and Photonics ; Origins ; Particulate composites ; Photonics ; Self assembly ; Suspensions
Is Part Of: Nature communications, 2022-05, Vol.13 (1), p.2657-9, Article 2657
Description: The transfer of chirality across length-scales is an intriguing and universal natural phenomenon. However, connecting the properties of individual building blocks to the emergent features of their resulting large-scale structure remains a challenge. In this work, we investigate the origins of mesophase chirality in cellulose nanocrystal suspensions, whose self-assembly into chiral photonic films has attracted significant interest. By correlating the ensemble behaviour in suspensions and films with a quantitative morphological analysis of the individual nanoparticles, we reveal an inverse relationship between the cholesteric pitch and the abundance of laterally-bound composite particles. These 'bundles' thus act as colloidal chiral dopants, analogous to those used in molecular liquid crystals, providing the missing link in the hierarchical transfer of chirality from the molecular to the colloidal scale.
Publisher: England: Nature Publishing Group
Language: English
Identifier: ISSN: 2041-1723
EISSN: 2041-1723
DOI: 10.1038/s41467-022-30226-6
PMID: 35550506
Source: AUTh Library subscriptions: ProQuest Central
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Chiral self-assembly of cellulose nanocrystals is driven by crystallite bundles

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