Surfactant Adsorption to Different Fluid Interfaces

Surfactant adsorption to fluid interfaces is ubiquitous in biological systems, industrial applications, and scientific fields. Herein, we unravel the impact of hydrophobic phase (air oil) role oil polarity on surfactants interfaces. We investigated anionic (sodium dodecyl sulfate), cationic (dodecyltrimethylammonium bromide), non-ionic (polyoxyethylene-(23)-monododecyl ether) at different interfaces, including air oils, with a wide range polarities. The surfactant-induced interfacial tension decrease, called pressure, correlates linearly initial clean oil–water interface describes experimental results over 30 studies from literature. higher competition surfactant polar molecules caused number adsorbed drop. Further, found that critical micelle concentration water solubility water. Hence, nature affects behavior equilibrium state These broaden our understanding enable better predictability interactions phases, which essential for emulsion, foam, capsule formation, pharmaceutical commodities, cosmetics, many food products.