Structural Color from Cellulose Nanocrystals or Chitin Nanocrystals : Self-Assembly, Optics, and Applications

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Journal Title
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Volume Title
A2 Katsausartikkeli tieteellisessä aikakauslehdessä
Date
2023-12-13
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Language
en
Pages
162
12595-12756
Series
Chemical Reviews, Volume 123, issue 23
Abstract
Widespread concerns over the impact of human activity on the environment have resulted in a desire to replace artificial functional materials with naturally derived alternatives. As such, polysaccharides are drawing increasing attention due to offering a renewable, biodegradable, and biocompatible feedstock for functional nanomaterials. In particular, nanocrystals of cellulose and chitin have emerged as versatile and sustainable building blocks for diverse applications, ranging from mechanical reinforcement to structural coloration. Much of this interest arises from the tendency of these colloidally stable nanoparticles to self-organize in water into a lyotropic cholesteric liquid crystal, which can be readily manipulated in terms of its periodicity, structure, and geometry. Importantly, this helicoidal ordering can be retained into the solid-state, offering an accessible route to complex nanostructured films, coatings, and particles. In this review, the process of forming iridescent, structurally colored films from suspensions of cellulose nanocrystals (CNCs) is summarized and the mechanisms underlying the chemical and physical phenomena at each stage in the process explored. Analogy is then drawn with chitin nanocrystals (ChNCs), allowing for key differences to be critically assessed and strategies toward structural coloration to be presented. Importantly, the progress toward translating this technology from academia to industry is summarized, with unresolved scientific and technical questions put forward as challenges to the community.
Description
Funding Information: This work was supported by the following funds: BBSRC BB/V00364X/1 (R.M.P. and S.V.); EPSRC EP/W031019/1 (B.F.-P., R.M.P., and S.V.), EP/K503757/1 (S.V.), EP/L015978/1 and EP/T517847/1 (T.G.P.); Philip Leverhulme Prize PLP-2019-271 (S.V.); ERC Horizon 2020 Framework Programme Marie Curie Individual Fellowship 893136-MFCPF (J.S.H.), ERC SeSaME ERC-2014-STG H2020 639088 (B.F.-P., R.M.P., and S.V.), the Shanghai Jiao Tong Grant (Q.S.), ITN-H2020 Plamatsu 722842 (B.E.D. and S.V.); Emil Aaltonen Foundation (J.S.H.); and the Hiroshima University WPI-SKCM2 (B.F.-P.). The authors thank Kosuke Kikuchi for the rendered schematic of a cholesteric assembly of twisted rods. Funding Information: This work was supported by the following funds: BBSRC BB/V00364 X/1 (R.M.P. and S.V.); EPSRC EP/W031019/1 (B.F.-P., R.M.P., and S.V.), EP/K503757/1 (S.V.), EP/L015978/1 and EP/T517847/1 (T.G.P.); Philip Leverhulme Prize PLP-2019-271 (S.V.); ERC Horizon 2020 Framework Programme Marie Curie Individual Fellowship 893136-MFCPF (J.S.H.), ERC SeSaME ERC-2014-STG H2020 639088 (B.F.-P., R.M.P., and S.V.), the Shanghai Jiao Tong Grant (Q.S.), ITN-H2020 Plamatsu 722842 (B.E.D. and S.V.); Emil Aaltonen Foundation (J.S.H.); and the Hiroshima University WPI-SKCM (B.F.-P.). The authors thank Kosuke Kikuchi for the rendered schematic of a cholesteric assembly of twisted rods. 2 Publisher Copyright: © 2023 The Authors. Published by American Chemical Society.
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Frka-Petesic , B , Parton , T G , Honorato-Rios , C , Narkevicius , A , Ballu , K , Shen , Q , Lu , Z , Ogawa , Y , Haataja , J S , Droguet , B E , Parker , R M & Vignolini , S 2023 , ' Structural Color from Cellulose Nanocrystals or Chitin Nanocrystals : Self-Assembly, Optics, and Applications ' , Chemical Reviews , vol. 123 , no. 23 , pp. 12595-12756 . https://doi.org/10.1021/acs.chemrev.2c00836