Figure 2

Absorbance measurements of the solutions containing 0.20 mg/ml lecithin liposomes and Sudan II and IV and their linear regression. A: Sudan II in lecithin liposomes was dissolved in ethanol and the absorbance was measured at 495 nm; B: Sudan IV was dissolved in ethanol and the absorbance was measured at 515 nm; C: plots of γ^-1 vs. C_L^-1 for the interaction of Sudan II with liposomes; D: as C, but using Sudan IV in place of Sudan II.