ABSTRACT
Since about half a century, it is known that the transition of swift heavy ions through thin polymer foils leaves a trail of radiochemical and structural damage can easily be removed by adequate etchants, thus creating nanopores, the so-called etched tracks. Both the control of the track etching and membrane formation processes and the subsequent membrane characterization are performed electrically, by applying a voltage across the measuring chamber and determining the passing currents. A peculiarity of experiments on coupled chemical reactions in dynamic nanometric confinement is the transient formation of stable, unsoluble, and impermeable membranes of the precipitating material within the etched tracks, which separate the latter into two compartments. Though the membranes embedded in the etched tracks guarantee a tight separation of the two etched track sides from each other, information exchange between the two sides can readily be accomplished by turning to higher frequencies.
