Adjustable Multicolor Doped Cellulose Nanocrystal Film with Excitation and Temperature Dependence for All-Weather Anticounterfeiting in Sunlight and Darkness

Liu, Man; Jin, Feng; Chen, Wang; Wu, Qingfeng; Xu, Haiyan; Zhou, Qing; Yang, Lei

doi:10.1021/acssuschemeng.4c02390

Cited by 3 publications

(1 citation statement)

References 64 publications

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“…NC can be roughly categorized into cellulose nanocrystals (CNCs) and cellulose nanofibers (CNFs) . Additionally, a developing category is known as bacterial nanocellulose (BNCs). , Various kinds of nanocellulose can be synthesized from waste lignocellulosic biomass and afterward employed to fabricate optically sensitive nanocomposites. , CNCs are being extensively used for these classes’ optical, sensing and anticounterfeiting material due to their stimuli-responsive self-assembly behavior. CNCs have the potential to produce a broad range of nano cellulose-based fluorescent materials that have been extensively utilized in anticounterfeiting measures. − …”

Section: Introductionmentioning

confidence: 99%

Stimuli-Responsive Chiral Cellulose Nanocrystals Based Self-Assemblies for Security Measures to Prevent Counterfeiting: A Review

Singh,

Bhardwaj,

Choudhary

et al. 2024

ACS Appl. Mater. Interfaces

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The proliferation of misleading information and counterfeit products in conjunction with technical progress presents substantial worldwide issues. To address the issue of counterfeiting, many tactics, such as the use of luminous anticounterfeiting systems, have been investigated. Nevertheless, traditional fluorescent compounds have a restricted effectiveness. Cellulose nanocrystals (CNCs), known for their renewable nature and outstanding qualities, present an excellent opportunity to develop intelligent, optically active materials formed due to their self-assembly behavior and stimuli response. CNCs and their derivatives-based self-assemblies allow for the creation of adaptable luminous materials that may be used to prevent counterfeiting. These materials integrate the photophysical characteristics of optically active components due to their stimuli-responsive behavior, enabling their use in fibers, labels, films, hydrogels, and inks. Despite substantial attention, existing materials frequently fall short of practical criteria due to limited knowledge and poor performance comparisons. This review aims to provide information on the latest developments in anticounterfeit materials based on stimuli-responsive CNCs and derivatives. It also includes the scope of artificial intelligence (AI) in the near future. It will emphasize the potential uses of these materials and encourage future investigation in this rapidly growing area of study.

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Section: Introductionmentioning

confidence: 99%

Stimuli-Responsive Chiral Cellulose Nanocrystals Based Self-Assemblies for Security Measures to Prevent Counterfeiting: A Review

Singh,

Bhardwaj,

Choudhary

et al. 2024

ACS Appl. Mater. Interfaces

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Natural polysaccharide-based room-temperature phosphorescence materials: Designs, properties, and applications

Gao,

Lü,

Peng

2025

Progress in Materials Science

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Mechanical Motion and Color Change of Humidity-Responsive Cellulose Nanocrystal Films from Sunflower Pith

Wang,

Liu,

Tao

et al. 2024

Polymers

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

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Adjustable Multicolor Doped Cellulose Nanocrystal Film with Excitation and Temperature Dependence for All-Weather Anticounterfeiting in Sunlight and Darkness

Cited by 3 publications

References 64 publications

Stimuli-Responsive Chiral Cellulose Nanocrystals Based Self-Assemblies for Security Measures to Prevent Counterfeiting: A Review

Stimuli-Responsive Chiral Cellulose Nanocrystals Based Self-Assemblies for Security Measures to Prevent Counterfeiting: A Review

Natural polysaccharide-based room-temperature phosphorescence materials: Designs, properties, and applications

Mechanical Motion and Color Change of Humidity-Responsive Cellulose Nanocrystal Films from Sunflower Pith

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