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. 2019 May 30;14:186. doi: 10.1186/s11671-019-3027-6

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© The Author(s). 2019

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.

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Fig. 10 — Confocal fluorescence images of live A549 cells treated with PBS, PDA@PMAA-1 nanoparticles, DOX-loaded PDA@PMAA-1 nanoparticles, and free DOX with or without NIR laser irradiation (λ = 808 nm, 5 W cm⁻²) for 300 s. Live cells were stained with Calcein-AM (green). The scale bar is 50 μm