Supplementary information

From the following article

Direct growth of aligned carbon nanotubes on bulk metals: 

S. Talapatra, S. Kar, S. K. Pal, R. Vajtai, L. Ci, P. Victor, M. M. Shaijumon, S. Kaur, O. Nalamasu & P. M. Ajayan

Nature Nanotechnology 1, 112 - 116 (2006) Published online: 22 October 2006

doi:10.1038/nnano.2006.56