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(a) TEM image of maltoheptaose-conjugated SNPs treated with E. coli ATCC 33456 (scale bar: 500 nm). (b) Overlay of confocal laser scanning microscopy image and bright field image (scale bar: 10 μm). The SNPs were doped with FITC. (c) TEM thin section image of maltoheptaose-conjugated iron oxide nanoparticles treated with E. coli ATCC 33456 (scale bar: 100 nm). (Copyright Royal Society of Chemistry. Reproduced from Ref. [113] with permission.)
