Figure 1.

Labeling efficiency.

Notes: (A) Number of labeled iPSC-NP cells expressed as a percentage of total cell number counted after 72 hours cell growth with different concentrations of CZF and PLL-coated γ-Fe₂O₃ nanoparticles. The graph represents results from three independent experiments ± SD (*P<0.05). (B) Representative pictures of PB staining in iPSC-NPs treated with 5 and 15 μg Fe/mL for 72 hours show increasing labeling efficiency. Iron labeling was not present in unlabeled control. The bar represents 20 μm.

Abbreviations: iPSC-NPs, induced pluripotent stem cell-derived neural precursors; CZF, silica-coated cobalt zinc ferrite nanoparticles; PLL-coated γ-Fe₂O₃, poly-l-lysine-coated iron oxide superparamagnetic nanoparticles; PB, Prussian blue; SD, standard deviation.