1. Colloidal Materials Group, Physical-Chemistry Department, Instituto de Química de São Carlos, Universidade de São Paulo, São Carlos, 13566-590 São Paulo, Brazil
2. Bionanomanufacturing Center, Institute for Technological Research, 05508-901 São Paulo, SP, Brazil
3. Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, 20131 Milano, Italy