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. 2013 Sep 2;8:3321–3331. doi: 10.2147/IJN.S47742

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© 2013 Wu et al. This work is published by Dove Medical Press Ltd, and licensed under Creative Commons Attribution – Non Commercial (unported, v3.0) License

The full terms of the License are available at http://creativecommons.org/licenses/by-nc/3.0/. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Ltd, provided the work is properly attributed.

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Line graph summarizes the internalization profiles of Fe@Au nanoparticles as assessed by ICP-OES.

Notes: Cells were treated with 50 μg/mL of Fe@Au for the assigned times; the cells were harvested; and the Fe and Au concentration was analyzed. From this graph, it becomes clear that the total amount of internalized Fe or Au is not proportional to the cytotoxicity observed in individual cells.

Abbreviations: ICP-OES, inductively coupled plasma optical emission spectrometry; Fe, iron; Au, gold.