Nanotechnology is a cross-section technology concerned with research and construction in very small structures. A nanometer corresponds to a millionth of a millimeter. It is a discipline which offers more potential for innovative applications than any other, as special physical laws apply on the nano-level. The optical, electrical or chemical properties of established materials can be altered completely by manipulation of the nanostructure. The application possibilities are manifold, whether in energy technology  (fuel and solar cells), environmental technology  (material cycles and disposal), information technology (memories and processors) or the health sector.