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Cellular uptake of FePt/GO NSs by H1975 cells. (A) The distribution of FePt/GO NSs (white arrow) in H1975 cells 24 h after explosion to 25 ug/mL FePt/GO NSs. (B) Some FePt NPs partially disembled from GO and attached to surrounding organelles (lysosome, black arrow). (C) Some FePt NPs totally disembled from GO (mitochondria, black arrow).
