Fig. 3

a DSF content change curves of DSF/SPC-NSps in 0.9% NaCl, 5% glucose and PBS at 37 °C. b DSF content change curves of DSF/SPC-NSps in artificial gastric juice, artificial intestinal fluid, and plasma at 37 °C. c Particle size change curves of DSF/SPC-NSps in 0.9% NaCl, 5% glucose PBS, artificial gastric juice, artificial intestinal fluid, and plasma at 37 °C. d In vitro cumulative release profiles of DSF from DSF/SPC-NSps at 37 °C. All data are presented as the mean ± SD (n = 3)