Fig. 1.

Diagram of observations that led to the discovery of liposomes. The historical and scientific trends of studying behaviors of lipid and fat particles in water and the observations leading to the liposomes discovery, along with images of the scientists involved in the event, Pliny the Elder [23], Anthonie Van Hook [24], Alec D. Bangham [25], and Gerald Weissmann [26], respectively, from left to right