There is a great article on the BBC website – it was published back in 2009 but shows some lovely images of atoms found in carbon nanotubes. You can read more and view the articles by clicking here.

By Original hochgeladen von Schwarzm am 30. Aug 2004; Selbst gemacht mit C4D/Cartoonrenderer, GNU FDL [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], via Wikimedia Commons