Cholesteric-type cellulosic structures: from plants to applications

Research output: Contribution to journalArticle

Abstract

The structural support of plant cells is provided by the cell wall, which major load-bearing component is an array of hierarchical orientedhierarchical-oriented cellulose nano-, micro- and meso-structures of cellulose microfibrils. Cellulosic structures can respond to humidity changes by expanding or shrinking and this allows, for example, the dispersion of seeds. Previous studies have shown that nanorods, extracted from cell walls, can generate lyotropic liquid crystals that are at the origin of solid cholesteric-like arrangements. Not only photonic films, but also right and left helical filaments, anisotropic films with the ability to bend back and forth under the action of a moisture gradient at room temperature, are some of the materials that were produced from cellulose liquid crystal systems. This work is a review that focus on liquid crystalline-based structures obtained from cellulosic materials and how small perturbations on their structures affect significantly the response to external stimulus and interactions with the environment. Special emphasis is given to cholesteric-like organization of cellulose structures existing in plants, which are an inspiration for the production of the next generation of soft interactive materials.

Original languageEnglish
Pages (from-to)1937-1949
Number of pages13
JournalLiquid Crystals
Volume46
Issue number13-14
DOIs
Publication statusPublished - 14 Nov 2019

Fingerprint

cellulose
Cellulose
Liquid Crystals
Liquid crystals
Bearings (structural)
liquid crystals
Cells
inspiration
Nanorods
moisture
stimuli
Photonics
nanorods
Seed
humidity
seeds
Atmospheric humidity
filaments
Moisture
photonics

Keywords

  • Cellulose
  • cellulose-based lyotropic systems
  • cholesteric phases
  • photonic materials
  • responsive cellulose-based materials
  • thermotropic cellulosic systems

Cite this

@article{37113febf2ef4ecebd44d69e1815da65,
title = "Cholesteric-type cellulosic structures: from plants to applications",
abstract = "The structural support of plant cells is provided by the cell wall, which major load-bearing component is an array of hierarchical orientedhierarchical-oriented cellulose nano-, micro- and meso-structures of cellulose microfibrils. Cellulosic structures can respond to humidity changes by expanding or shrinking and this allows, for example, the dispersion of seeds. Previous studies have shown that nanorods, extracted from cell walls, can generate lyotropic liquid crystals that are at the origin of solid cholesteric-like arrangements. Not only photonic films, but also right and left helical filaments, anisotropic films with the ability to bend back and forth under the action of a moisture gradient at room temperature, are some of the materials that were produced from cellulose liquid crystal systems. This work is a review that focus on liquid crystalline-based structures obtained from cellulosic materials and how small perturbations on their structures affect significantly the response to external stimulus and interactions with the environment. Special emphasis is given to cholesteric-like organization of cellulose structures existing in plants, which are an inspiration for the production of the next generation of soft interactive materials.",
keywords = "Cellulose, cellulose-based lyotropic systems, cholesteric phases, photonic materials, responsive cellulose-based materials, thermotropic cellulosic systems",
author = "Almeida, {Ana P. C.} and Canejo, {Jo{\~a}o P.} and Almeida, {Pedro L.} and Godinho, {Maria Helena}",
note = "This work is funded by National Funds through FCT - Portuguese Foundation for Science and Technology and FCT/MCTES. Under projects numbers UID/CTM/50025/2019, PTDC/FIS-NAN/0117/2014, PTDC/CTM-BIO/6178/2014, M-ERA-NET2/0007/2016 (CellColor) and PTDC/CTM/30529/2017. A.P.A. acknowledge the Minister of Science, Technology, and Higher Education for National Funds, European Social Funds, and FCT for the fellowship with reference SFRH/BD/115567/2016.",
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Cholesteric-type cellulosic structures: from plants to applications. / Almeida, Ana P. C.; Canejo, João P.; Almeida, Pedro L.; Godinho, Maria Helena.

In: Liquid Crystals, Vol. 46, No. 13-14, 14.11.2019, p. 1937-1949.

Research output: Contribution to journalArticle

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AU - Almeida, Ana P. C.

AU - Canejo, João P.

AU - Almeida, Pedro L.

AU - Godinho, Maria Helena

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PY - 2019/11/14

Y1 - 2019/11/14

N2 - The structural support of plant cells is provided by the cell wall, which major load-bearing component is an array of hierarchical orientedhierarchical-oriented cellulose nano-, micro- and meso-structures of cellulose microfibrils. Cellulosic structures can respond to humidity changes by expanding or shrinking and this allows, for example, the dispersion of seeds. Previous studies have shown that nanorods, extracted from cell walls, can generate lyotropic liquid crystals that are at the origin of solid cholesteric-like arrangements. Not only photonic films, but also right and left helical filaments, anisotropic films with the ability to bend back and forth under the action of a moisture gradient at room temperature, are some of the materials that were produced from cellulose liquid crystal systems. This work is a review that focus on liquid crystalline-based structures obtained from cellulosic materials and how small perturbations on their structures affect significantly the response to external stimulus and interactions with the environment. Special emphasis is given to cholesteric-like organization of cellulose structures existing in plants, which are an inspiration for the production of the next generation of soft interactive materials.

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KW - photonic materials

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KW - thermotropic cellulosic systems

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