Mechanical Motion and Color Change of Humidity-Responsive Cellulose Nanocrystal Films from Sunflower Pith DOI Open Access
Shujie Wang, Yanan Liu, Tao Zhou

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(22), P. 3199 - 3199

Published: Nov. 18, 2024

Nanocellulose has prompted extensive exploration of its applications in advanced functional materials, especially humidity-responsive materials. However, the sunflower pith (SP), a unique agricultural by-product with high cellulose and pectin content, is always ignored wasted. This work applied sulfuric acid hydrolysis sonication to obtain nanocellulose construct film materials properties. The SP nanoparticle (SP-NP) suspension could form transparent stacked layers laminated structure. Due tightly layered structure expansion confinement effect, when humidity increases, SP-NP responds rapidly just 0.5 s completes full flipping cycle 4 s, demonstrating excellent capability. After removing hemicellulose lignin, nanocrystals (SPC-NC) self-assemble into chiral nematic film, displaying various structural colors based on different times. color SPC-NC dynamically adjusted changes ambient humidity, exhibiting both functionality aesthetics. research provides new perspective high-value utilization while establishing practical foundation for developing novel responsive cellulose-based

Language: Английский

A Win–Win Strategy to Fabricate Multifunctional Doping Materials from Cationic Dyes and Negatively Charged Biomass (Cellulose Nanocrystals) DOI
Zhonghua Zhao,

Yasong Cao,

Haowen Huang

et al.

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(4)

Published: Jan. 1, 2025

Abstract If optical probes with different sensitivity could be performed simultaneously in their hard states (e.g., film), soft gel), and solution states, sensing accuracy enhanced due to the highly mutual calibration. The biomass of cellulose nanocrystals is less compatible commonly used organo‐fluorescent dyes require chemical modification improve application performance, but this leads less‐effective material cost. In work, depending on electrostatic attractions between negatively charged polymer matrix cationic dyes, (CNCs)‐based emissive membranes were prepared by vacuum filtration method. Then, resulting materials transformed into hydrogels, or dispersed water solutions, further absorbed commercially available spheres filter papers, devices states. It worth mentioning that preparation process does not addition organic dispersants, thus greatly reducing Finally, behaviors toward several important stimuli, such as temperature, pollutants like Cr (VI) pH changes, successfully carried out. Overall, our research works highlighted a processable way fabricate fluorescent, water‐dispersible, portable, long‐time‐storable, cost‐effective sensors meet versatile requirements.

Language: Английский

Citations

0
Construction of Multifunctional Fabric with Structural Color by Polymer Microspheres Containing Antibacterial and Hydrophobic Functional Groups DOI

Wei-Han Tao,

Xiaoyan Zhao, Yinchun Fang

et al.

ACS Applied Polymer Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 29, 2025

Language: Английский

Citations

0
Advances in structural color composite films based on cellulose nanocrystals DOI

Yongyue Peng,

Xinyue Wei,

Yi Liang

et al.

Industrial Crops and Products, Journal Year: 2024, Volume and Issue: 221, P. 119294 - 119294

Published: July 31, 2024

Language: Английский

Citations

3
Recent advances in nanocellulose pretreatment routes, developments, applications and future prospects: A state-of-the-art review DOI

Ajithram Arivendan,

Xiaoqi Chen, Yuanfang Zhang

et al.

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: unknown, P. 135925 - 135925

Published: Oct. 1, 2024

Language: Английский

Citations

3
Mechanical Motion and Color Change of Humidity-Responsive Cellulose Nanocrystal Films from Sunflower Pith DOI Open Access
Shujie Wang, Yanan Liu, Tao Zhou

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(22), P. 3199 - 3199

Published: Nov. 18, 2024

Nanocellulose has prompted extensive exploration of its applications in advanced functional materials, especially humidity-responsive materials. However, the sunflower pith (SP), a unique agricultural by-product with high cellulose and pectin content, is always ignored wasted. This work applied sulfuric acid hydrolysis sonication to obtain nanocellulose construct film materials properties. The SP nanoparticle (SP-NP) suspension could form transparent stacked layers laminated structure. Due tightly layered structure expansion confinement effect, when humidity increases, SP-NP responds rapidly just 0.5 s completes full flipping cycle 4 s, demonstrating excellent capability. After removing hemicellulose lignin, nanocrystals (SPC-NC) self-assemble into chiral nematic film, displaying various structural colors based on different times. color SPC-NC dynamically adjusted changes ambient humidity, exhibiting both functionality aesthetics. research provides new perspective high-value utilization while establishing practical foundation for developing novel responsive cellulose-based

Language: Английский

Citations

0