Tunable Construction of Chiral Nematic Cellulose Nanocrystals/ZnO Films for Ultra-Sensitive, Recyclable Sensing of Humidity and Ethanol.
Int J Mol Sci
; 25(9)2024 May 02.
Article
em En
| MEDLINE
| ID: mdl-38732196
ABSTRACT
The investigation of functional materials derived from sustainable and eco-friendly bioresources has generated significant attention. Herein, nanocomposite films based on chiral nematic cellulose crystals (CNCs) were developed by incorporating xylose and biocompatible ZnO nanoparticles (NPs) via evaporation-induced self-assembly (EISA). The nanocomposite films exhibited iridescent color changes that corresponded to the birefringence phenomenon under polarized light, which was attributed to the formation of cholesteric structures. ZnO nanoparticles were proved to successfully adjust the helical pitches of the chiral arrangements of the CNCs, resulting in tunable optical light with shifted wavelength bands. Furthermore, the nanocomposite films showed fast humidity and ethanol stimuli response properties, exhibiting the potential of stimuli sensors of the CNC-based sustainable materials.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Óxido de Zinco
/
Celulose
/
Etanol
/
Nanopartículas
/
Umidade
Idioma:
En
Revista:
Int J Mol Sci
/
Int. j. mol. sci. (Online)
/
International journal of molecular sciences (Online)
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
China