Papers Published

1. Pendekanti, R; Henriquez, CS; Hoffmann, DA, Electrochemical model of the transient resistance of a bubble layer, Annual International Conference of the Ieee Engineering in Medicine and Biology Proceedings, vol. 1 (December, 1997), pp. 136-139 [IEMBS.1997.754484] .
   (last updated on 2023/06/01)

   Abstract:
   At high current densities, electrolysis occurs at the electrode-electrolyte interface and the gas evolved creates a bubble layer. To study the electrical effects of the bubble layer, a model based on electrochemistry and geometric considerations is developed. The model is used to determine the contribution of the bubble layer to the interelectrode impedance in a simple, axisymmetric electrochemical cell. Results indicate that the bubble layer can contribute up to a few ohms to the impedance during defibrillation-like shocks. The bubble layer is also expected to improve the uniformity of the current distribution profile over electrode surfaces.

   Keywords:
   biochemistry;biomedical electrodes;bubbles;current density;defibrillators;electrochemistry;electrolysis;physiological models;