Permeation selectivity in the electro-dialysis of mono- and divalent cations using supported liquid membranes

We investigated in detail the permeation selectivity in the electro-dialysis of Na⁺, K⁺, Mg²⁺ and Ca²⁺ in both binary and quaternary mixtures using a supported liquid membrane (SLM). The SLM consisted of the organic liquid 2-nitrophenyl octyl ether (NPOE) containing a lipophilic anion, i.e. tetrakis...

Separation of alkali metal cations by a supported liquid membrane (SLM) operating under electro dialysis (ED) conditions

This study demonstrates the effective separation of alkali metal cations using a Supported Liquid Membrane (SLM) containing lipophilic, negatively charged borate moieties, operating under electro dialysis conditions. The selectivity of the membrane is essentially based on differences in dehydration energy and mobility between ion species. The...

Lipid bilayers cushioned with polyelectrolyte-based films on doped silicon surfaces

Silicon semiconductors with a thin surface layer of silica were first modified with polyelectrolytes (polyethyleneimine, polystyrene sulfonate and poly(allylamine)) via a facile layer-by-layer deposition approach. Subsequently, lipid vesicles were added to the preformed polymeric cushion, resulting in the adsorption of intact vesicles or...