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. 2018 Apr 19;16:42. doi: 10.1186/s12951-018-0367-9

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© The Author(s) 2018

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. 6 — HeLa and A549 were incubated with positive probe (Ag₂S@DP-FA) or negative probe (Ag₂S@DP), and then treated with or without NIR laser irradiation. Cells were stained by calcein-AM. Laser power was 1.8 W/cm², and irradiation time was 5 min. White dotted line was the border of laser irradiation