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Cytotoxicity effects (IC50) of the control (the combination of the free drug with blank PBCA nanoparticles) and cisplatin against BHK-21 cells (39.9 ± 1.0, 21.4 ± 1.5, and 19.0 ± 1.1 µM after 24-, 48-, and 72-h incubation, respectively). The data were expressed as mean ± SD (n = 3).
