1. Botucatu Medical School; São Paulo State University - UNESP; Botucatu, SP, Brazil
2. School of Technology; University of Campinas- UNICAMP; Limeira, SP, Brazil
3. Institute of Chemistry; University of Campinas- UNICAMP; Campinas, SP, Brazil
4. School of Dentistry; University of São Paulo- USP; Ribeirão Preto, SP, Brazil