1. São Carlos Institute of Physics, University of São Paulo, P.O Box 369, 13560-970São Carlos, SP, Brazil
2. São Carlos Institute of Chemistry, University of São Paulo, 13566-590São Carlos, SP, Brazil
3. National Institute of Science and Technology in Bioanalytics - INCTBio, 13083-970Campinas, SP, Brazil
4. Department of Applied Physics, “Gleb Wataghin” Institute of Physics (IFGW), University of Campinas (UNICAMP), 13083-859Campinas, SP, Brazil
5. Department of Chemistry, Federal University of São Carlos (UFSCar), 13560-970São Carlos, São Paulo, Brazil
6. Nanotechnology National Laboratory for Agriculture, Embrapa Instrumentation, 13560-970São Carlos, SP, Brazil
7. Department of Genetics Evolution, Microbiology, and Immunology, Institute of Biology, University of Campinas, 13083-970Campinas, SP, Brazil
8. Molecular Carcinogenesis Program, National Cancer Institute, 20231-050Rio de Janeiro, RJ, Brazil
9. Physics Department, del Valle University, AA 25360Cali, Colombia
10. Laboratory of Nanobiotechnology, Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia, 70910-900Brasilia, DF, Brazil