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Characterization of M38 tumor cell membrane fragments (M) and M@NPs. A) Morphology of M38 under microscope. B) The morphology of DiOM under fluorescence microscope. C) Dir near-infrared fluorescent labeled DirM. D-F) TEM of NPs, M and M@NPs. G) Coomassie Blue Staining of cell mmbrance (kit method) and M@NPs. H) Uptake of red labeled M38 by different cells. I) Immune escape ability of M38 coated nanoparticles to macrophages.
