Uncovering the Recent Progress of CNC‐Derived Chirality Nanomaterials: Structure and Functions

Small(2024)

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摘要
AbstractCellulose nanocrystal (CNC), as a renewable resource, with excellent mechanical performance, low thermal expansion coefficient, and unique optical performance, is becoming a novel candidate for the development of smart material. Herein, the recent progress of CNC‐based chirality nanomaterials is uncovered, mainly covering structure regulations and function design. Undergoing a simple evaporation process, the cellulose nanorods can spontaneously assemble into chiral nematic films, accompanied by a vivid structural color. Various film structure‐controlling strategies, including assembly means, physical modulation, additive engineering, surface modification, geometric structure regulation, and external field optimization, are summarized in this work. The intrinsic correlation between structure and performance is emphasized. Next, the applications of CNC‐based nanomaterials is systematically reviewed. Layer‐by‐layer stacking structure and unique optical activity endow the nanomaterials with wide applications in the mineralization, bone regeneration, and synthesis of mesoporous materials. Besides, the vivid structural color broadens the functions in anti‐counterfeiting engineering, synthesis of the shape‐memory and self‐healing materials. Finally, the challenges for the CNC‐based nanomaterials are proposed.
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