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Fig. 3 | Biomaterials Research

Fig. 3

From: Epsilon-Fe2O3 is a novel intermediate for magnetite biosynthesis in magnetotactic bacteria

Fig. 3

Component analyses of intracellular iron oxide nanoparticles in MSR-1 wild type after the induction of ferric citrate for 5 min and 10 min by HRTEM. a. HRTEM analysis of intracellular iron oxide nanoparticles form samples, FFT analyses are shown below the corresponding HRTEM images. M, ε, and H subscripts shown in FFT pattern denote Fe3O4 (magnetite), ε-Fe2O3, and α-Fe2O3 (hematite) phases, respectively. The time shown beside the individual HRTEM image is the interval when the samples were taken out after the induction of ferric citrate. b. The schematic representation of crystal structures for magnetite, hematite and ε-Fe2O3

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