Ion‐exchange properties of poly(L‐lysine) coatings on pyrolytic graphite electrodes
Authors:
- 1 January 1994
- journal article
- research article
- Published by Wiley in Electroanalysis
- Vol. 6 (1) , 67-74
Abstract
Pyrolytic graphite electrodes are coated with films of poly(L‐lysine) (PLL). The polyelectrolyte films bind multiply charged counterions. Cyclic voltammetry is used to investigate the incorporation of Fe(CN) anions as a function of time, concentration, pH, and ionic strength. The stability of the film is studied after transfer of the PLL coatings into an electrolyte solution. The PLL‐modified pyrolytic graphite (PG) electrode proves to be very effective in facilitating electron transfers of negatively charged proteins, such as ferredoxin and hydrogenase.Keywords
This publication has 24 references indexed in Scilit:
- Electrocatalytic Hydrogen‐Evolution at the Pyrolytic Graphite Electrode in the Presence of HydrogenaseJournal of the Electrochemical Society, 1992
- Chemically and physically modified electrodes: some new developmentsJournal of Applied Electrochemistry, 1990
- Permselectivity and ion-exchange properties of Eastman-AQ polymers on glassy carbon electrodesAnalytical Chemistry, 1989
- Electrochemical study of flavin mononucleotide and of flavodoxin from desulfovibrio vulgaris hildenboroughElectrochimica Acta, 1988
- Ionomer Film-Coated Electrodes as Electrochemical SensorsMolecular Crystals and Liquid Crystals Incorporating Nonlinear Optics, 1988
- Influence of supporting electrolyte concentration and composition on formal potentials and entropies of redox couples incorporated in Nafion coatings on electrodesThe Journal of Physical Chemistry, 1986
- Voltammetry of hexacyanoferrates using a chemically modified carbon-paste electrodeThe Analyst, 1986
- Shifts in Redox Formal Potentials Accompanying the Incorporation of Cationic Complexes in Perfluoro Polycarboxylate and Polysulfonate Coatings on Graphite ElectrodesJournal of the Electrochemical Society, 1984
- Thermodynamic Aspects of Redox Reactions on Electrodes Coated with Thin, Ion Exchanging Polymer FilmsJournal of the Electrochemical Society, 1983
- Separation of hydrogenase from intact cells of Desulfovibrio vulgaris Purification and propertiesFEBS Letters, 1978