The interface between water and mixed surfactant solutions of CH(3)(CH(2))(19)OH and CF(3)(CF(2))(7)(CH(2))(2)OH in hexane was studied with interfacial tension and X-ray reflectivity measurements. Measurements of the tension as a function of temperature for a range of total bulk surfactant concentrations and for three different values of the molal ratio of fluorinated to total surfactant concen...

Formation of a monomolecular layer (the Langmuir monolayer) at the air/water interface is a self-organized process. On the basis of measurements of A isotherms, mechanical and thermodynamic properties of 2D molecular systems can be evaluated. The concept is applied to the study of molecular interactions in a binary system in biological membranes: L-dimyristoyl phosphatidylcholine (DMPC) and gra...

GrEASy fibrils: Hydrophobins are fungal proteins that assemble into an amphipathic fibrillar monolayer with amyloid properties and a hydrophobic face as water-resistant as Teflon. Solid-state NMR studies on EAS hydrophobin fibrils reveal direct evidence of a partial molecular rearrangement on assembly and an ordered β-sheet-rich core in the context of a whole protein in this functional amyloid.

It is demonstrated that oxidative debris can be separated and largely removed during the surfactant assisted phase transfer of graphene oxide from a water/ethanol mixture to dichlorobenzene. The new procedure described provides a facile method to obtain monolayer dispersed graphene sheets in a nonpolar solvent via solvothermal reduction of graphene oxide accompanied by an effective purification...

Self-assembly of surface-active agents at solid–liquid interfaces is critical for many processes in nature and technology, including the stability of suspension, detergency, wetting and mineral separation. Historically, a detailed understanding of nanometer-scale layers has emerged. However, surprisingly little is known about their dynamics—the key to non-equilibrium phenomena. Even in equilibr...