[1] Universidad Autónoma Metropolitana-Iztapalapa,Departamento de Física
[2] Apartado Postal 55-534,Departamento de Materiales
[3] México 09340,Department of Chemical and Biological Engineering
[4] Distrito Federal,undefined
[5] México,undefined
[6] Department of Chemistry and Biochemistry Delaware Valley College,undefined
[7] Department of Chemical and Biological Engineering University of Wisconsin-Madison,undefined
[8] Universidad Nacional de Colombia,undefined
[9] Sede Medellín,undefined
[10] Bloque M3-050,undefined
[11] Medellin,undefined
[12] Colombia,undefined
[13] University of Wisconsin-Madison,undefined