Self-assembled monolayers of bis-thioctic ester derivatives of oligoethyleneglycols: remarkable selectivity for K+/Na+ recognitionDedicated to Professor Jean-Marie Lehn on the occasion of his 60th birthday.
Abstract
Bis-thioctic ester terminated derivatives of oligoethylene glycols form extremely stable self-assembled monlayers (SAMs) on gold electrodes and these can recognize K+ selectively over Na+, as measured by cyclic voltammetry and impedance spectroscopy.