Regulatory Mechanism of Opposite Charges on Chiral Self-Assembly of Cellulose Nanocrystals.

ABSTRACT: The charge plays an important role in cellulose nanocrystal (CNC) self-assembly to form liquid crystal structures, which has rarely been systematically explored. In this work, a novel technique combining atomic force microscopy force and atomistic molecular dynamics simulations was addressed for the first time to systematically investigate the differences in the CNC self-assembly caused by external positive and negative charges at the microscopic level, wherein sodium polyacrylate (PAAS) and chitosan oligosaccharides (COS) were used as external positive and negative charge additives, respectively. The results show that although the two additives both make the color of CNC films shift blue and eventually disappear, their regulatory mechanisms are, respectively, related to the extrusion of C

SUBMITTER: Wang B 

PROVIDER: S-EPMC9959273 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature