DOX-FA-PMIDA-CoO NP-induced cellular apoptosis analysis in KB and KG1a cell lines by flow cytometry using propidium iodide. Here, a (KB cells) = control, b and c = KB cell + 10 and 25 μg/ml DOX-FA-PMIDA-CoO, respectively, d and e = KB cells + 10 and 25 μg/ml MTX-FA-PMIDA-CoO, respectively; nanoparticles induced cellular apoptosis analysis KG1a cell lines by flow cytometry using propidium iodide. Here, f = control, g and h = KG1a cell + 10 and 25 μg/ml DOX-FA-PMIDA-CoO, respectively, i and j = KG1a cells + 10 and 25 μg/ml MTX-FA-PMIDA-CoO, respectively. Here, P1 = G0/G1 phase (apoptotic phase), P2 = S phase (synthesis phase), P3 = M phase