Figure 6. Cytotoxicity effect of MTO niosomes on HUVEC cell line. Blank conventional niosomes (C-N.Blank), blank CHEMS niosomes (CHEMS-N.Blank), blank PEG-PMMI-CholC6 niosomes (PEG-PMMI-CholC6-N.Blank), MTO-loaded conventional niosome (C-N+MTO), MTO-loaded CHEMS niosomes (CHEMS-N+MTO) and MTO-loaded PEG-PMMI-CholC6 niosome (PEG-PMMI-CholC6-N+ MTO). (Data are the mean values of three replications, *P<0.05,**P<0.01 and ***P<0.001 compared with C-N+MTO).