1. Department of Chemistry, Faculty
of Sciences, Universidad de Chile, Santiago, Chile
2. Department of Chemistry, P.O.
Box 55 (A.I. Virtanens plats 1), FIN-00014 University of Helsinki,
Finland
3. Center for the Development
of
Nanoscience and Nanotechnology, CEDENNA, Santiago, Chile
4. Instituto de Nutricion y Tecnología
de los Alimentos (INTA), Universidad de Chile, Santiago, Chile
5. Department of Analytic and Inorganic
Chemistry, Faculty of Chemical and Pharmaceutical Sciences, Universidad
de Chile, Santiago, Chile