1. Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, São Carlos, São Paulo 13560-970, Brazil
2. PPGBiotec, Center for Exact Sciences and Technology, Federal University of São Carlos (UFSCar), São Carlos, São Paulo 13565-905, Brazil
3. São Carlos Institute of Physics, University of São Paulo, São Carlos, São Paulo 13560-970, Brazil
4. Institute of Chemistry, Federal University of Bahia (UFBA), Salvador, Bahia 40170-280, Brazil
5. Institute of Physics, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile