By utilizing widely sourced,green,and renewable cellulose nanocrystals to combine with functional materials,biomass chiral optical materials with excellent performance could be constructed.The as prepared materials had broad application fields such as colorimetric sensing,information encryption,chiral induction,and building energy conservation.This review introduced the preparation of cellulose nanocrystals,the self-assembly of chiral nematic liquid crystal structures,and their chiral optical properties.And the strategies for regulating the optical properties of cellulose nanocrystal chiral structure materials,as well as the research progress on chiral optical applications,emphaticdly summarized.Finally,the challenges and future prospects faced by the development of cellulose nanocrystal based chiral optical materials were summarized and prospected.
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