1. Department
of Chemistry, The University of Texas at El Paso, 500 West University
Avenue, El Paso, Texas 79968, United States
2. University
of California Center for Environmental Implications of Nanotechnology
(UC CEIN), The University of Texas at El Paso, El Paso, Texas 79968, United States
3. European
Synchrotron Radiation Facility, BP 220 38043 Grenoble, Cedex 9, France
4. Environmental
Science and Engineering PhD Program, The University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, United States
5. Franklin High School, 900 North
Resler, El Paso, Texas 79912, United States
6. Department
of Biological Sciences, Border Biomedical Research Center, The University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, United States