Fig. 9From: In-vitro cytotoxicity assessment of carbon-nanodot-conjugated Fe-aminoclay (CD-FeAC) and its bio-imaging applicationsCross-sectioned transmission electron microscopy (TEM) image (a) and its Fe elemental mapping with green color (b), and scanning transmission electron microscopy (STEM) image (c), d enlarged image of c, and its energy-dispersive X-ray (EDX) analysis (e) in Z-contrast mode of a single HeLa cell with treatment of FeAC NPs (200 μg/mL)Back to article page