The Latest Applications of Cellulose Nanocrystals Liquid Crystal

Abstract Cellulose nanocrystals, as a natural material, have emerged as a research hotspot due to their unique chiral properties and excellent optical performance, which enable the formation of chiral liquid crystals. This literature review begins by introducing the fundamental characteristics of cellulose nanocrystals and their inherent liquid crystalline properties. Subsequently, the review elaborates on the optical properties of liquid crystal films which are formed through the self‐assembly of cellulose nanocrystals, and highlights the latest studies that aim at enhancing these optical characteristics. Finally, the review delves into the extensive application potential of cellulose nanocrystals liquid crystal materials in fields such as anti‐counterfeiting, sensors, cancer detection, and smart windows, achieved by harnessing functionalities including multi‐layer optical responses, stress and humidity sensitivity, cell recognition capabilities, optical tuning, and thermal management. The innovative prospects for cellulose nanocrystals liquid crystal materials are vast, and future research is expected to further expand their applications in the field of liquid crystal technology.