Figure 5From: Binding of Sudan II and IV to lecithin liposomes and E. coli membranes: insights into the toxicity of hydrophobic azo dyesGrowth curve of E. coli at 37°C. 1: turbidity of culture fluid at 600 nm at 48 h culture time; 2: variation of E. coli activity indicated by the absorbance measured at 555 nm with MTT.Back to article page