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Fig. 1 | Journal of Nanobiotechnology

Fig. 1

From: Long-term live cells observation of internalized fluorescent Fe@C nanoparticles in constant magnetic field

Fig. 1

Characteristics of the initial Fe@C NPs. a TEM micrograph of Fe@C NPs; b Histogram of Fe@C NPs distribution by size. Size classes: I: < 10 nm, II: 10–20 nm; III: 20–30 nm; IV: 30–40 nm; V: 40–50 nm; VI: 50–60 nm; VII: 60–70 nm; VIII: 70–80 nm; IX: 80–90 nm; X: 90–100 nm; XI: > 100 nm; c, d HRTEM micrographs of Fe@C NPs, which demonstrate the iron lattice of graphitic-like NP shell (Gr) and alpha Fe core (α-Fe); e magnetization curves of Fe@C NPs measured at 300 K. f Scheme of consecutive chemical modifications of Fe@C NPs resulting in Alexa Fluor 647 binding

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