Cytotoxicity of Doxycycline Effluent Generated by the Fenton Process

Figure 1

Results of cytotoxicity tests performed by adding the 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. Saline solutions are assumed to be inert for cells.