Simone Mazzucato, Benjamin Royall, Richard Ketlhwaafetse*, Naci Balkan, Joel Salmi, Janne Puustinen, Mircea Guina, Andy Smith and Russell Gwilliam
* Corresponding author: Richard Ketlhwaafetse rmketl@essex.ac.uk
Nanoscale Research Letters 2012, 7:631 doi:10.1186/1556-276X-7-631
