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. 2016 Jul 27;14:61. doi: 10.1186/s12951-016-0196-7

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© The Author(s) 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 3 — RT-PCR of Vero cells transfected and MTT assay. a RT-PCR of Vero cells transfected with the empty pVAX plasmid, only TVC, MWCNT functionalized with TVC, and c-MWCNT functionalized with TVC. b, c MTT assay in Vero cells treated with c-MWCNTs pure preparations (c-MWCNT) (b) or functionalized with plasmid DNA (TVC-c-MWCNT) (c) to evaluate the cytotoxicity of preparations