[1] Univ Fed Minas Gerais, Fac Pharm, Dept Pharmaceut Prod, BR-31270901 Belo Horizonte, MG, Brazil
[2] Fundacao Oswaldo Cruz FIOCRUZ, Inst Rene Rachou, Clin Res & Publ Policy Grp Infect & Parasit Dis, BR-30190002 Belo Horizonte, MG, Brazil
[3] Univ Fed Minas Gerais, Inst Biol Sci, Dept Morphol, BR-31270901 Belo Horizonte, MG, Brazil
[4] Univ Brasilia, Inst Phys, Lab Software & Instrumentat Appl Phys, BR-70910900 Brasilia, DF, Brazil
[5] Univ Brasilia, Inst Phys, Lab Electron Paramagnet Resonance, BR-70910900 Brasilia, DF, Brazil
[6] Univ Brasilia, Inst Biol Sci, Nanobiotechnol Lab, BR-70910900 Brasilia, DF, Brazil
[7] Univ Sao Paulo, Fac Philosophy Sci & Letters Ribeirao Preto, Ctr Nanotechnol & Tissue Engn, Dept Chem,Photobiol & Photomed Res Grp, BR-14040900 Ribeirao Preto, Brazil