Fig. 4From: A Comparative Evaluation of Hydroxycamptothecin Drug Nanorods With and Without Methotrexate Prodrug Functionalization for Drug Delivery a CLSM images and b flow cytometry analysis of HeLa cells incubated with MTX-PEG-CPT NRs in the presence of excess of free FA, MTX-PEG-CPT NRs, and PEG-CPT NRs for 2 h. Cell nuclei are stained with PI. Data are presented as mean ± s. d. (n = 3). *P < 0.05 compared with the other groupsBack to article page