Carmen Chifiriuc, Valentina Grumezescu, Alexandru M Grumezescu*, Crina Saviuc, Veronica Lazăr and Ecaterina Andronescu
* Corresponding author: Alexandru M Grumezescu grumezescu@yahoo.com
Nanoscale Research Letters 2012, 7:209 doi:10.1186/1556-276X-7-209