Properties of complexes and particles of gelatin with ionic surfactants

Use of Viscosity to Probe the Interaction of Anionic Surfactants with a Coagulant Protein from Moringa oleifera Seeds

“…Below 1 mM SDS, it is suggested that the coagulant protein-SDS complexes form aggregates. Although charge neutralization and aggregation of protein/surfactant mixtures has been reported before [25,26,30,31], the conclusion that the SDS bound to the coagulant protein promotes protein aggregation ([SDS] <1 mM) and opposes protein aggregation (1 mM < [SDS] <2 mM) is presently not well understood. But it does provide the framework for testable models.…”

The wettability of polytetrafluoroethylene by aqueous solution of cetyltrimethylammonium bromide and Triton X-100 mixtures

“…Surface tension measurements were made at 293 K with Krüss K9 tensiometer under atmospheric pressure by the ring method [29,30]. From those studies it results that the shape of the γ LV -log C curves is typical and that there is a minimum of solution surface tension at monomer mole fraction of CTAB equal to 0.2 represents on the curve the dependence of surface tension and surfactants mixture composition.…”

Assembled Materials: Polyelectrolyte-Surfactant Complexes

“…However, Vinetsky and Magdassi found that colloidal particles of gelatin A±C 12 TAB and ±C 16 TAB complexes formed when the surfactant concentrations were above the CMC. [29] Recently, Kabanov and coworkers [30±33] started to explore new complexes formed by block or graft polyelectrolytes with oppositely charged surfactants, in which the blocked or grafted segments could be either hydrophilic or lipophilic. Thus, this type of complex represents a special class of lyophilic colloids that exhibit combined properties of amphiphilic copolymers and polyelectrolyte complexes.…”