1. Department of Materials Science and Nano Engineering; Rice University; 6100 Main St. Houston TX 77005 USA
2. Smalley Institute for Nanoscale Science & Technology; Rice University; 6100 Main St. Houston TX 77005 USA
3. Department of Chemistry; Rice University; 6100 Main St. Houston TX 77005 USA
4. Department of Physics and Astronomy; University of Texas at San Antonio One UTSA Circle; San Antonio TX 78249 USA
5. Departmento de Ingenieria Quimica; Universidad de Sonora; 83000 Hermosillo Sonoroa Mexico