CLINICAL MEDICINE Electrodes Electron transitions Enzymes Nanostructures Osmium complexes Osmium compounds Peroxides Scanning tunneling microscopy Scanning tunneling spectroscopy Self assembled monolayers ARGENTINA Absorption spectroscopy Article Au (111) substrates Au(111) surfaces Binary alloys Bioelectric Energy Sources Bipyridine ligands Carbon Catalysis Chlorine compounds Competitive inhibition Covalently bonded Density functional theory Direct electron transfer ELECTION ELECTIONS Electrochemical electrodes Electrochemical gating