1. Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
2. Institute for Problems of Material Science, NAS of Ukraine, 03680 Kyiv, Ukraine
3. Department of Chemistry and Biochemistry, Interdisciplinary Center for Nanotoxicity, Jackson State University, Jackson, MS 39217, USA
4. Badger Technical Services LLC, Vicksburg, MS 39180, USA