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Updated: Dec 26, 2025

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
Published on: October 31, 2019
DNA thermotropic liquid crystals controlled by positively charged catanionic bilayer vesicles
Huizhong Liu1, Ling Wang, Yuanyuan Hu
1Key Laboratory of Colloid and Interface Chemistry & State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China. jhao@sdu.edu.cn.
Abstract:
We report DNA thermotropic liquid crystal (TLC) formation by positively charged catanionic surfactant bilayer vesicles. The properties of DNA TLCs were found to be manipulated by both the chemical structures of cationic and anionic surfactants and the DNA amount. Positively charged catanionic bilayer vesicles bond to negative DNA sites resulting in the transition from vesicles to long range ordered lamellar crystals of DNA-catanionic surfactants, as confirmed by cryo- and freeze-fracture (FF) TEM observations and small-angle X-ray scattering (SAXS) measurements.
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