Multi-stimuli-responsive photonics films based on chiral nematic cellulose nanocrystals

Multiple-stimuli-responsive bio-based materials have received considerable attention for intelligent packaging and anti-counterfeiting applications. Herein, we present a unique biobased photonics film with multi-stimuli responsive behavior based on cellulose nanocrystals (CNCs), sorbitol (S) and ant...

Full description

Saved in:
Bibliographic Details
Published in:Carbohydrate polymers 2022-02, Vol.277, p.118756-118756, Article 118756
Main Authors: Meng, Yahui, He, Zhibin, Dong, Cuihua, Long, Zhu
Format: Article
Language:English
Subjects:
Anthocyanin
Cellulose nanocrystal
Multi-stimuli responsive
Sorbitol
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Multiple-stimuli-responsive bio-based materials have received considerable attention for intelligent packaging and anti-counterfeiting applications. Herein, we present a unique biobased photonics film with multi-stimuli responsive behavior based on cellulose nanocrystals (CNCs), sorbitol (S) and anthocyanin (Anth). The resulting photonics film exhibits multi-stimuli responsive behavior to humidity, solvent and pH stimuli. Notably, the photonics film showed dramatic invertible color from blue to fuchsia and high sensitivity at a relative humidity from 50% to 100%. Moreover, the photonics film exhibited fast response and good reversibility under different ethanol concentrations. Significant color changes of the photonics film were also observed in response to pH change in the range of 2 to 12. Particularly, the humidity, solvent and pH responsiveness of the photonics film did not interfere with each other.
ISSN:0144-8617
1879-1344
DOI:10.1016/j.carbpol.2021.118756