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. 2019 Jul 23;17(3):1559325819865713. doi: 10.1177/1559325819865713

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© The Author(s) 2019

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 3. — The cytotoxicity of Ag NPs (code XFJ14) and Ag NFs (code XFJ45). THP-1 macrophages were exposed to various concentrations of Ag NMs with or without the presence of 3-hydroxyflavone (H3) for 24 hours. After exposure, CCK-8 (A) and neutral red uptake assays (B) were done to indicate the cytotoxicity. *, P < .05, compared with control; ^#, P < .05, comparison between Ag NM-exposed groups at the same mass concentrations of NMs with or without the presence of H3. CCK-8 indicates cell counting kit-8; NF, nanoflake; NM, nanomaterial; NP, nanoparticle.