1. Faculty of Sciences, Department of Physics, Laboratory of Polymers and Composite Materials (LP&MC), Buenos Aires Physics Institute (IFIBA-CONICET); Ciudad Universitaria, University of Buenos Aires; Ciudad Autónoma de Buenos Aires Argentina
2. Department of Chemistry, Faculty of Sciences; University of Chile; Las Palmeras 3425, Casilla 653, Santiago 8320000 Chile
3. Laboratory of surfaces y nanomaterials, Physics Department, Facultad de ciencias físicas y matemáticas; Universidad de Chile; Santiago Chile
4. Advanced Center for Chronic Diseases, Department of Pharmacological Chemistry and Toxicology, Faculty of Pharmaceutical Sciences; University of Chile; Santos Dumont 964, Box 233 Santiago Chile
5. Department of Physics, Faculty of Sciences; University of Santiago of Chile; Santiago Chile