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. 2020 Jan 19;13(2):481. doi: 10.3390/ma13020481

Figure 1.

Figure 1

Maghemite nanoparticles (MNPs)–ferment observed by TEM and High-Angle Annular Dark Field-Scanning Transmission Electron Microscopy (HAADF-STEM): (a) TEM image of MNPs–ferment showing the presence of Lactobacillus acidophilus (dashed lines) with MNPs adhered to the exopolysaccharides (EPS); (b) TEM image of MNPs–ferment showing the presence of Streptococcus thermophilus (dashed lines) with MNPs adhered to the EPS; (c) HAADF-STEM image of the MNPs–ferment sample; and (d) EDX map of the MNPs–ferment sample with iron highlighted in red.