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. 2011 Jul 4;1:310–321. doi: 10.7150/thno/v01p0310

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© Ivyspring International Publisher. This is an open-access article distributed under the terms of the Creative Commons License (http://creativecommons.org/licenses/by-nc-nd/3.0/). Reproduction is permitted for personal, noncommercial use, provided that the article is in whole, unmodified, and properly cited.

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Cellular uptake and biocompatibility of SWCNTs and MWCNTs in vitro. OVCAR8 ovarian cancer cells treated with SWCNTs (A) and MWCNTs (B) dispersed in PL-PEG-NH₂ and labeled with FITC were imaged using confocal fluorescence microscope. The green fluorescence clearly shows that the carbon nanotubes were taken up by the cancer cells 2 h post treatment. (C) OVCAR8 ovarian cancer cells were treated with SWCNT s/ MWCNTs dispersed in PL-PEG-NH₂ to test cellular toxicity and evaluated using cell proliferation colorimetric MTT assay.