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. 2015 Jul 30;31(33):9198–9204. doi: 10.1021/acs.langmuir.5b01833

Figure 1.

Figure 1

TEM of spherical, monodisperse magnetite nanoparticles with narrow size distributions of (a) 3.5 ± 0.4 nm, (b) 5.0 ± 0.4 nm, and (c) 8.3 ± 0.4 nm and (d) high-resolution (HR)-TEM of the 8.3 ± 0.4 nm SPIONs in panel c.