Micelles of Oxyethylated Isononylphenols in Aqueous Solutions and Hydrophilic–Lipophilic Balance

Abstract

We have measured the self-diffusion coefficients and calculated the effective hydrodynamic radii of micelles of ethoxylated isononylphenols in aqueous solutions in the presence of sodium chloride, as well as in their binary mutual mixtures, when approaching cloudy conditions. These cloudy conditions were created by an increase in temperature, a change in the concentration of an electrolyte in the solution, or a mutual ratio of neonols in their binary mixtures. The results are discussed within the concept of the hydrophilic− lipophilic balance.

Facile and scalable fabrication of exosome-mimicking nanovesicles through PEGylated lipid detergent-aided cell extrusion

“…2f). 46,47 These results indicate that the MEL PEG detergents may play a positive role in producing ENVs through cell extrusion, as they are not only biocompatible but also possess surfactant activity and self-assembly properties.…”

Facile Cloud Point Extraction for the Separation and Determination of Phenolic Acids from Dandelion

“…In general, the phase separation is accomplished by heating the mixture over CPT. Owing to the presence of the electrolyte, the CPT of surfactants is reduced, which improved the phase separation, and the use of low temperature may prevent the analyte degradation. ,, In addition, the nonelectrolyte becomes less soluble in the presence of the relatively high concentration of the electrolyte according to the salting-out concept, and hydrophobic interactions between micelles can be enhanced by adding a salt to the micellar solution. In view of that, NaCl is readily available, inexpensive, and more frequently used in the procedure of CPE.…”

“…Therefore, the efficiency of extraction was strengthened via adding NaCl into the solution. Nevertheless, the salting-out effect arises under higher salt concentration, which affects the precision of extraction. , Based on overall consideration of the results, 10% (w/v) of salt concentration was selected in this work.…”

“…The extraction recovery was enhanced because the nonionic surfactant becomes more hydrophobic with the increase of temperature. The dehydration of the surfactant improved when the temperature increased, which contributes to the repulsion and aggregation of micelles. ,, Meanwhile, more analytes are retained in the surfactant-rich phase. Hence, the solubilization capacity of micelles is accelerated with the rise of temperature, leading to an increase in the extraction of analytes.…”