Patent ID: 8501406

Claim:
A method for selectively functionalizing a surface of a substrate having both silica-based portions and metal or metal oxide portions comprising: a) exposing a surface of a substrate having both silica-based portions and metal or metal oxide portions to an agent that preferentially binds to the metal or metal oxide portions to produce passivated metal or metal oxide portions of the surface; b) exposing the surface of the substrate to a silica functionalizing agent that binds to both the silica-based portions and the passivated metal or metal oxide portions of the surface, then rinsing the surface of the substrate; and c) after step b), exposing the silica-based portions and the passivated metal or metal oxide portions of the surface of the substrate to a selective removal compound that preferentially removes the silica functionalizing agent from the passivated metal or metal oxide portions of the surface.