Fig. 5From: A Comparative Evaluation of Hydroxycamptothecin Drug Nanorods With and Without Methotrexate Prodrug Functionalization for Drug Delivery a Cell viability of HeLa cells incubated with the free CPT, free CPT plus free MTX, PEG-CPT NRs, and MTX-PEG-CPT NRs for 24 h of incubation. Data are presented as mean ± s. d. (n = 6). b Combination index for MTX-PEG-CPT NRs against HeLa cellsBack to article page