Study of the Formation and Solution Properties of Worm-Like Micelles Formed Using Both N-Hexadecyl-N-Methylpiperidinium Bromide-Based Cationic Surfactant and Anionic Surfactant

Abstract

The viscoelastic properties of worm-like micelles formed by mixing the cationic surfactant N-hexadecyl-N-methylpiperidinium bromide (C16MDB) with the anionic surfactant sodium laurate (SL) in aqueous solutions were investigated using rheological measurements. The effects of sodium laurate and temperature on the worm-like micelles and the mechanism of the observed shear thinning phenomenon and pseudoplastic behavior were systematically investigated. Additionally, cryogenic transmission electron microscopy images further ascertained existence of entangled worm-like micelles.

Insights into the mechanism of high lipid–detergent crystallization of membrane proteins

“…We also observed fingerprint-like patterns [Fig. 3(i)], which resemble previously published images of surfactant micelles (Wei et al, 2016;Yan et al, 2014). However, no intact crystals were observed.…”

Wormlike micellar solutions formed by an anionic surfactant and a cationic surfactant with two head groups

“…The simple phase diagram revealed that for a wide range of molar ratios, the aggregates formed by C18-DQA and SL efficiently increased the viscoelasticity of the solutions, an unprecedented observation compared to previously reported wormlike micelle systems constructed with SL and other cationic surfactants. 35,36 As shown in Fig. 3, at a fixed C18-DQA concentration, the zero-shear viscosity of the mixed solutions increased with increasing the molar ratio of SL : C18-DQA, indicating an optimized molecular geometry for forming wormlike micelles.…”