1. Department of Oral Pathology, Group of Biomaterials for Prostheses, Institute of Biomedical Engineering, Engineering School, Buenos Aires University; Av. Paseo Colón 850 (C1063ACV) Argentina
2. Laboratory for the Study of Biomaterials, Department of Oral Pathology, School of Dentistry; University of Buenos Aires; MT de Alvear 2142, 2° “A”, (C1122AAH) Argentina
3. Biomaterials Group, School of Dentistry; National University of Cuyo; Mendoza, General San Martin Park (M5502JMA) Argentina
4. Nuclear Materials Group, Bariloche Atomic Center (GMN-CAB), National Atomic Energy Commission; Av. E. Bustillo 9500, San Carlos de Bariloche, (R8402AGP) Argentina
5. National Research Council (CONICET); Buenos Aires (C1122AAH) Argentina