Cytotoxicity of Doxycycline Effluent Generated by the Fenton Process

Figure 2

Results of cytotoxicity tests performed by adding the 10-fold concentrated effluent from the Fenton process or doxycycline HCl to the culture medium after 24 h of incubation with L929 cells. Effluent blank did not contain the antibiotic. Ethanol 20% is considered to be responsible for 100% of cell death.