The formation and stability of sodium dodecylsulfate vesicles mediated by rough glass surface

Vesicle formation of single-tailed amphiphilic alkyltrimethylammonium bromides in water induced by dehydration–rehydration

“…0.81, 0.89, and 0.92, respectively. Similar interdigitated structures were suggested for other vesicles in our previous reports 30,33,48 and in the literature. 49,50 For clarity, the parameter values of C n TAB bilayers are listed in Table 1.…”

“…Furthermore, no obvious change in the appearance of vesiclesolutions was observed before and after heating at 80 1C for 2 h. These results indicate the remarkable stability of C n TAB vesicles, similar to our previous results on the vesicles of STAs. [25][26][27][28][29][30]33 3.4 Possible mechanism for DHRH-induced micelle-to-vesicle transition Based on the above results, it can be concluded that, using a DHRH process, the micelle-to-vesicle transition occurs for C n TABs in their single-component solutions (without any additives). For TTAB and CTAB, a complete transition from micelles…”

“…to vesicles can be achieved, forming pure vesicle systems, while for DTAB, only a partial transition occurs, forming a vesicle/ micelle coexisting system. In our previous reports, 25,26,28,30 it was demonstrated that RGSs can in situ mediate the micelle-to-vesicle transition for STAs in water, but smooth glass plates cannot. A possible mechanism for the RGS-mediated micelle-to-vesicle transition was proposed: 25 STA micelles and molecules adsorb on the RGSs to form curved bilayers, which are closed to form vesicles when detached from the RGSs.…”

“…However, we recently found that, under the mediation of solid surfaces (such as rough glass surfaces, RGSs), simple STAs can form vesicles from their respective micelle solutions without any additives. [25][26][27][28][29][30] The so-obtained STA vesicles coexist with micelles, and all such vesiclecontaining systems are transparent, [25][26][27][28][29][30] in contrast to the turbid appearance of conventional vesicle systems. 20,31,32 This is because the population and/or size of STA vesicles are small in the vesiclecontaining systems obtained by the solid surface in situ mediation.…”

Effect of Aggregation and Adsorption Behavior on the Flow Resistance of Surfactant Fluid on Smooth and Rough Surfaces: A Many-Body Dissipative Particle Dynamics Study

“…On the atomic scale, the definition of a smooth surface is somewhat imprecise because the wall substrates are formed by individual particles with finite roughness . Compared with smooth surfaces, rough surfaces exhibit different properties in surfactant adsorption and fluid flow resistance. − On the one hand, the rough surfaces with nanoscale patterns usually have lateral confinement on the adsorbed surfactant aggregates and affect the orientation of molecular packing. , On the other hand, the adsorption of surfactants in return influences the surface properties such as hydrophobicity, wettability, and surface roughness by forming a soft interface layer which is similar to polymer layers. , …”