Journal
NATURE COMMUNICATIONS
Volume 13, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41467-022-30226-6
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Funding
- BBSRC [BB/V00364X/1]
- EPSRC [EP/K503757/1, EP/P030467/1, EP/N509620/1, EP/L015978/1]
- Philip Leverhulme Prize [PLP-2019-271]
- ERC Horizon 2020 Framework Programme Marie Curie Individual Fellowship [893136-MFCPF]
- ERC [SeSaME ERC-2014-STG H2020 639088, ERC-2017-POC 790518, ERC BiTe ERC-2020-CoS-101001637]
- ITN-H2020 Plamatsu [722842]
- Emil Aaltonen Foundation
- Lord Lewis Research Studentship in Chemistry
- BBSRC [BB/V00364X/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/K503757/1, EP/P030467/1] Funding Source: researchfish
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The transfer of chirality across length-scales is an intriguing and universal natural phenomenon, but connecting the properties of individual building blocks to the emergent features of their resulting large-scale structure remains a challenge. In this work, the authors investigate the origins of mesophase chirality in cellulose nanocrystal suspensions, whose self-assembly into chiral photonic films has attracted significant interest.
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. Chirality transfer across length-scales is an intriguing phenomenon but connecting the properties of individual building blocks to the emergent features of their resulting large-scale structure remains challenging. Here, the authors investigate the origins of mesophase chirality in cellulose nanocrystal suspensions, whose self-assembly into chiral photonic films has attracted significant interest.
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