Table 1.

Relaxivities r₁ and r₂ (at 3 T), size and saturation magnetization (Ms) of bare and coated MNPs

MNPs formulation	Size (nm)	Saturation magnetization (Ms) (emu/g)	r1(mM−1 s−1)	R^2 value	r2(mM−1 s−1)	R^2 value	r2/ r1
CZFMNPs (co-precipitation)	16	43.1	1.490	0.987	88.46	0.972	59.3
CZF-MNPs@DMSA (co-precipitation)	40	42.4	0.577	0.940	28.80	0.999	50.0