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. 2022 Oct 29;17:103. doi: 10.1186/s11671-022-03738-9

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© The Author(s) 2022

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 3 — a CLSM images of 4T1 and GES-1 cells incubated with FA-EM@MnO₂/ZIF-8/ICG nano-platform for 3 h. b CLSM images of macrophage cells incubated with EM@MnO₂/ZIF-8/ICG, FA-EM@MnO₂/ZIF-8/ICG, and MnO₂/ZIF-8/ICG nano-platform for 3 h. Images show cell nuclei stained by DAPI (blue), ICG fluorescence in cells (green), and the merged overlap of the two images. Scale bars: 30 μm