Mechanism of cationic surfactant adsorption – Effect of molecular structure and multiple charge

Mixed cationic liposomes for brain delivery of drugs by the intranasal route: The acetylcholinesterase reactivator 2-PAM as encapsulated drug model

“…For example, the CAC of DHDAB determined by Tucker was 0.01 mM [60] However, the CAC value found by Nagarajan is lower (0.0034 mM) [61]. Lower CAC (close to 0.0001 mM) were also determined using a linear relationship between log(CAC) and the number of carbon atoms in the dialkyl chain (n) [62] and CAC of DDAB [63][64][65]. These strongly different Size (hydrodynamic diameter) of DHDAB and DHDHAB associates was determined by dynamic light scattering at different surfactant concentrations.…”

A comparison of didodecyldimethylammonium bromide adsorbed at mica/water and silica/water interfaces using neutron reflection

“…The didodecyldimethylammonium bromide (Sigma Aldrich certificate of analysis 100.1% by argentometric titration with an IR spectra that conforms to the molecule expected) was additionally checked for purity using drop shape analysis, elemental analysis, 1 13,[26][27][28] . We determined the CMC as 0.08 mM and this is the value referred to throughout this study.…”

New cationic vesicles prepared with double chain surfactants from arginine: Role of the hydrophobic group on the antimicrobial activity and cytotoxicity

“…Para et al [25] also found that the surface activity of the gemini surfactant was somewhere in between the surface activity of the monomeric and that of the dimeric surfactant.…”