Figure 1: Kinetic of release of Sb from small size liposomes (Lip 175) in isotonic buffer at 37°C. Liposome formulation was diluted at 1 g of Sb/L in PBS and incubated at 37°C under constant stirring. After different times of incubation, an aliquot was centrifuged, the pellet was digested with nitric acid and Sb was determined by graphite furnace atomic absoption spectroscopy. Data are given as mean ± SD (n = 3).