Ramón Manjarres-García, Gene E Escorcia-Salas, Javier Manjarres-Torres, Ilia D Mikhailov and José Sierra-Ortega*
* Corresponding author: José Sierra-Ortega jsierraortega@gmail.com
Nanoscale Research Letters 2012, 7:531 doi:10.1186/1556-276X-7-531