Electrolyte effect on the aggregation behavior of 1-butyl-3-methylimidazolium dodecylsulfate in aqueous solution

Effect of mixed micellization on dimensions of 1-butyl-3-methylimidazolium dodecylsulfate micelles in presence of electrolytes

“…The presence of two relaxation times at high Brij30 concentrations reveals presence of secondary scattering species. Jiao et al [45] i.e., micelles grow with increase in mole fraction of Brij30 with the difference that the growth is more pronounced in the presence of NH 4 Cl. It is pertinent to mention that the upper concentration limit of Brij30 in mixed micelles was limited by the nature and concentration of salt.…”

“…Electrolytes used in this study belong to chaotropes as per the lyotropic series [92] with NH 4 + ion having higher salting-out efficiency. Jiao et al [45] observed that various electrolytes cause salting-out of [bmim][DS] monomers and facilitate micelle formation at low concentrations with addition of various electrolytes. It is known that inorganic electrolytes affect the aggregation behavior of ionic surfactants mainly through decreasing electrostatic repulsions.…”

“…The modification of interfacial activity and aggregate size/ morphology are crucial for their optimum performance. Such modifications can be achieved by modifying surfactants' own structure [71][72][73] or mixing them with each other [63,64,[74][75][76][77] as well as with additives like salts and different organic compounds [21,[43][44][45][46][47][78][79][80][81]. Considering the need to control aggregate size, vital for various applications, we attempted to investigate the mixed micellization between [bmim] [DS] and Brij30 in presence of two different ions (Na + and NH 4 + ) using dynamic light scattering (DLS), small angle neutron scattering (SANS) and Rheological measurements.…”

A novel cationic Gemini surfactant with amide group: synthesis and micellization behavior in aqueous solutions

“…It was observed that the CMC values of the surfactants decreased with the increase in the concentration of electrolyte added. [23][24][25].…”

Self-assembling systems based on quaternized derivatives of 1,4-diazabicyclo[2.2.2]octane in nutrient broth as antimicrobial agents and carriers for hydrophobic drugs

“…Besides, as mentioned above, micellization and properties of formed aggregates are known to depend markedly on the characteristics of the medium e.g. ionic strength, pH, and temperature [40,41], and also by the presence of various inorganic [42] and organic [43,44] substances, that are ample in nutrient broths. Therefore, although antimicrobial activity is usually exhibited at low surfactant concentrations, the problem should be considered whether antimicrobial effect is mediated by associated cationic surfactants, or if it is a result of the molecular forms of amphiphilic agents.…”