Electrostatics of liquid interfaces

Electrostatics of Inhomogeneous Quantum Hall Liquid

The distribution of electron density in the quantum Hall liquid is considered in the presence of macroscopic density gradient caused by side electrodes or inhomogeneous doping. In this case different Landau levels are occupied in different regions of a sample. These regions are separated by “incompressible liquid”. It is shown that the applicability of the approach by Chklovskii et al. is subst...

Colloids at Liquid-liquid Interfaces

Symmetry-preserving mean field theory for electrostatics at interfaces.

We derive an instantaneous symmetry-preserving mean field equation relating the long-ranged component of the intermolecular interaction to an effective single particle potential. We verify the efficiency and accuracy of the symmetry-preserving mean field approach to treat complex nonuniform electrostatics and foresee its application to study self-assembly and disassembly processes at interfaces...

Interfacial Rheology of Gas/Liquid and Liquid/Liquid Interfaces

An interfacial shear rheometer for stressand strain-controlled measurements at liquid interfaces is outlined. Experimental data are reported for the surfactant sorbitan tristearate on κ-carrageenan subphases. A setup combining interfacial rheometry with Brewster-angle Microscopy for realtime imaging of the interface is presented. INTRODUCTION Dynamic processes involving deformable fluid interfa...

Hydrogen evolution at liquid-liquid interfaces.

Blowing bubbles: Hydrogen evolution by proton reduction with [(C(5)Me(5))(2)Fe] occurs at a soft interface between water and 1,2-dichloroethane (DCE). The reaction proceeds by proton transfer assisted by [(C(5)Me(5))(2)Fe] across the water-DCE interface with subsequent proton reduction in DCE. The interface essentially acts as a proton pump, allowing hydrogen evolution by directly using the aqu...