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. 2015 Apr 1;10:2619–2634. doi: 10.2147/IJN.S80025

Table 1.

Parameters of synthesized M-HFn nanoparticles with different core sizes

Sample Mean size (nm) R Ms (Am2 kg−1) Hc (mT) Tb (K) r2 (mM−1 s−1) r1 (mM−1 s−1) r2/r1
M-HFn1000 2.7 0.50 5.9 4.62 10 22.5 10.4 2.2
M-HFn3000 3.3 0.48 15.2 8.28 13 63.2 14.5 4.4
M-HFn5000 4.4 0.44 27.6 19.87 44 99.4 17.4 5.7
M-HFn7000 5.3 0.40 37.3 24.41 170 320.9 22.0 14.6

Abbreviations: R, magnetostatic interaction parameter; Ms, saturation magnetization; Hc, coercivity; Tb, blocking temperature; r2, transverse relaxivity; r1, longitudinal relaxivity; M-HFn, ferrimagnetic H-ferritin.