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

Here, an overview of recent advances in CNC-based chirality nanomaterials is presented. Various film structure-controlling strategies are summarized, including assembly processing, physical routes, additive engineering, surface modification, geometric structure regulations, etc. Next, the structure-function correlation of nanomaterials is revealed. Finally, the applications of composites that derive from the unique layer-by-layer structure and optical activity are reviewed. 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 applic...

Source: Small - April 23, 2024 Category: Nanotechnology Authors: Shengzhe Jia, Bingbing Yang, Jing Du, Yujiang Xie, Liuyang Yu, Yuan Zhang, Tiantian Tao, Weiwei Tang, Junbo Gong Tags: Review Source Type: research