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. 2013 Nov 19;8:4427–4440. doi: 10.2147/IJN.S53636

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© 2013 Tsai et al. This work is published by Dove Medical Press Limited, 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 Limited, provided the work is properly attributed.

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Confocal microscopy images of (A) free doxorubicin (Dox) and (B) multiwalled (MW) polyglycolic acid (PGA)-Dox carbon nanotubes incubated with HeLa cells for 2 hours. Red fluorescence means Dox and green fluorescence means PGA.