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