1. Department
of Chemistry, The University of Texas at El Paso, 500 W. University
Avenue, El Paso, Texas 79968, United States
2. USDA
Center for Education and Training in Agriculture and Related Sciences
(CETARS), The University of Texas at El Paso, El Paso, Texas 79968, United States
3. UC
Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, El Paso, Texas 79968, United States
4. European Synchrotron Radiation Facility, B.P.220-38043 Grenoble, Cedex, France
5. Environmental
Science Program, The University of Texas at El Paso, 500 W. University
Avenue, El Paso, Texas 79968, United States
6. Environmental
Science and Engineering PhD Program, The University of Texas at El Paso, 500 W. University Avenue, El Paso, Texas 79968, United States