Scanning tunnelling microscopy (STM), Atomic force microscopy (AFM), Biocompatibility, Biosensors, Catalysis, Hydrogen communities, Materials science, Nanobiotechnology, Nanocatalysis, Nanomaterials, Nanoscience, Nanoscience and nanotechnology, Nanotechnology, Scanning probe microscopy (SPM), Solid state physics, Surface coatings, Surface physics