Nanoparticle, artwork. Nanotechnology involves designing systems on scales from the microscopic downwards. This nanoparticle has been built at a scale small enough to interact with individual molecules. These molecules are seen embedded in the multi-faceted polygonal surface of the nanoparticle. Nanoparticles like this could be used to deliver targeted drug treatments to particular areas of the body. Some of the other possible applications of nanoparticles include use as meteorological, geophysical, biological and surveillance sensors.