Journal
ADVANCED MATERIALS
Volume 30, Issue 19, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201704477
Keywords
cellulose nanocrystals; colloids; liquid crystals; self-assembly; structural color
Categories
Funding
- BBSRC David Phillips Fellowship [BB/K014617/1]
- EPSRC [1525292, EP/L016087/1]
- European Research Council [ERC-2014-STG H2020 639088]
- Winton Programme for the Physics of Sustainability
- Biotechnology and Biological Sciences Research Council [BB/K014617/1] Funding Source: researchfish
- Engineering and Physical Sciences Research Council [1648007, 1525292, 1800758] Funding Source: researchfish
- BBSRC [BB/K014617/1] Funding Source: UKRI
- EPSRC [1800758] Funding Source: UKRI
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By controlling the interaction of biological building blocks at the nanoscale, natural photonic nanostructures have been optimized to produce intense coloration. Inspired by such biological nanostructures, the possibility to design the visual appearance of a material by guiding the hierarchical self-assembly of its constituent components, ideally using natural materials, is an attractive route for rationally designed, sustainable manufacturing. Within the large variety of biological building blocks, cellulose nanocrystals are one of the most promising biosourced materials, primarily for their abundance, biocompatibility, and ability to readily organize into photonic structures. Here, the mechanisms underlying the formation of iridescent, vividly colored materials from colloidal liquid crystal suspensions of cellulose nanocrystals are reviewed and recent advances in structural control over the hierarchical assembly process are reported as a toolbox for the design of sophisticated optical materials.
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