[1] Cardiff Univ, Welsh Sch Pharm, Cardiff CF10 3NB, S Glam, Wales
[2] Univ Palermo, Fac Farm, Dipartimento Farmacochim Tossicolog & Biol, I-90123 Palermo, Italy
[3] Pharminox Ltd, Nottingham NG1 1GF, England
[4] Univ Nottingham, Sch Pharm, Ctr Biomol Sci, Nottingham NG7 2RD, England
[5] Univ Nottingham, Sch Biol, Nottingham NG7 2RD, England