Figure 3.

(A) Changes in particle size of SCF-CO₂ liposomes stored at 4°C at different time intervals over 14 weeks. (B) Size distribution of SCF-CO₂ liposomes stored at 4°C at different time intervals over 14 weeks.

Notes: Liposomes were passed through 1-μm PTFE filters. Values denote the mean ± standard deviation of three separate sets of experiments.

Abbreviations: SCF-CO₂, supercritical fluid of carbon dioxide; SCF-S100, supercritical fluid liposomes prepared using Lipoid S100; SCF-E80, supercritical fluid liposomes prepared using Lipoid E80; PTFE, polytetrafluoroethylene.