This is an important step. To give you some perspective on the size of a nanotube:

100 microns – width of human hair 10 microns – water droplet 8 microns – transistors in Cedric 625 nanometres (nm) – wavelength of red light 20-450 nm – single viruses 22 nm latest silicon chips 9 nm – smallest carbon nanotube chip 6 nm – cell membrane 1 nm – single carbon nanotube

Fascinating.