Figure 1From: Binding of Sudan II and IV to lecithin liposomes and E. coli membranes: insights into the toxicity of hydrophobic azo dyesVisible spectra of solutions containing: 1, Sudan II (14 μM) in ethanol; 2, Sudan IV (6.3 μM) in ethanol; 3, lecithin liposomes (10 mg/ml).Back to article page