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