Mn2+ as a mediator for the electron transfer across thin wetting films of lecithin

Abstract The employment of manganese (Mn 2+ ) as a mediator for the electron transfer across glassy carbon-supported thin lecithin films in contact with electrolyte is described in the present work. The results suggest, that the ascorbate oxidation, which is normally hampered by the film, can proceed through the incorporated manganese. In this respect, the potential of Mn for modification of lipid wetting films in construction of sensitive interfaces is briefly outlined.