1. Department of Fundamental Chemistry, Federal University of Pernambuco, Recife, PE, 50740-560, Brazil
2. Danish Offshore Technology Centre, Technical University of Denmark, Kgs. Lyngby, 2800, Denmark
3. Department of Pharmaceutical Sciences, Federal University of Pernambuco, Recife, PE, 50740-521, Brazil
4. Department of Biophysics and Radiobiology, Federal University of Pernambuco, Recife, PE, 50670-901, Brazil