A new approach for biologically inhibiting surfaces

摘要

A biologically inhibiting surface based upon an electrochemical principle has shown to be very effective against the formation of biofilm in water containers and supply systems. The coating consists of silver and another precious metal, which is applied to the surface in small areas with a thickness measured in nanometer. Due to the difference in the potentials, the biologically inhibiting material will act as a galvanic element in contact with an electrolyte. But the electrochemical processes taking place at the metal surface seems to be of a catalytic oxidation character more than an oligomeric effect from the silver.