1. Biomedical Engineering Laboratory; Federal University of Pernambuco; Av. Prof. Moraes Rego, 1235 - Cidade Universitária 50670-901 Recife PE Brazil
2. Chemical Institute; State University of Campinas; Rua Carlos Gomes, 241 - Cidade Universitária 13083-970 Campinas SP Brazil
3. National Institute of Science and Technology in Bioanalysis; Brazil
4. Institute of Chemical and Biotechnology; Federal University of Alagoas; Av.Tabuleiro do Martins 57072-970 Maceió AL Brazil