Imec of Leuven, Belgium, has received US Patent No. 8,142,720, "Molecules suitable for binding to a metal layer for covalently immobilizing biomolecules." The patent claims a method for immobilizing functional organic biomolecules via a covalent bond to a thiolate or disulfide monolayer assembled on a metal surface. The monolayer can contain, but is not limited to, two moieties. One has a group that resists nonspecific adsorption and another has a group that directly reacts with functional groups on the biomolecules.