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Designing a sustainable security model that carries multilevel information with numerous optical states will significantly enhance anti‐counterfeiting abilities to deter counterfeits, ranging from artworks, currencies, and foods to medicines, but is enormously challenging. Herein, ambient‐friendly, large‐area, quadruple‐level, and chiral luminescent materials are prepared by incorporating lanthanide...
Cellulose nanocrystals (CNCs)–derived photonic materials have confirmed great potential in producing renewable optical and engineering areas. However, it remains challenging to simultaneously possess toughness, strength, and multiple responses for developing high‐performance sensors, intelligent coatings, flexible textiles, and multifunctional devices. Herein, the authors report a facile and robust...
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