Ionophore/Lipid Bilayer Assembly on Soft Organic Electrodes for Potentiometric Detection of K+ Ions

Effects of valinomycin doping on the electrical and structural properties of planar lipid bilayers supported on polyelectrolyte multilayers

“…The high selectivity exhibited for K + results from the formation of a three-dimensional complex around the cation that increases its solubility in the hydrophobic core of a biological membrane. Valinomycin, in the presence of K + ions, has been used as a model system for EIS and potentiometric studies on doped SLBs [19], [34]. The mechanism of transport of K + ions across the valinomycin-doped SLBs has been widely investigated by EIS.…”