Stimulated reversal of the strong adhesion of catechol onto a silica surface

Abstract

AbstractMarine mussels permanently adhere to various surfaces via catechol (1,2‐dihydroxybenzene) functional groups. Such biofouling causes adverse effects, including the corrosion and dragging of a marine vessel. By using the density functional theory, we show an electrical stimulus detach a catechol molecule that strongly adhered to a silica surface. A moderate electric field significantly decreases the binding energy of catechol adhered to a dry or wet silica surface.