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. 2015 Sep 22;13:57. doi: 10.1186/s12951-015-0121-5

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© Zhao et al. 2015

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. 5 — Cell apoptosis determined by Annexin V-FITC staining. Flow cytometer analysis of the apoptosis and necrosis cells after 48 h incubation with the free Gefitinib, Gefitinib loaded NPs and Gefitinib/CQ-NPs, respectively. Results were expressed as mean ± SD (n = 3). a QGY cells, b QGY/Gefitinib cells