Table 1.
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.