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Expression of caspase 3 in K562 cells by western blotting analysis. After normalization by corresponding β-actin expression, protein expression levels of caspase 3 were determined by densitometry scans to obtain quantitative data. Note: Data expressed as mean ± standard deviation (n = 3). Abbreviations: DNR, daunorubicin; DNR-TiO2, daunorubicin-titanium dioxide nanocomposites; Nps, nanoparticles; TiO2, titanium dioxide.
