Sample

Av. crystallite size (nm)

core size (nm)

Morphology

Hydrodynamic size (nm)

PDI

Zeta potential (mV)

Polymer

Fe²⁺

Ms (emu/g)

42 (deg.) (seconds)

45 (deg.) (seconds)

SAR (W/g)

ILP (nH·m²/kg)

Bare-MNPs

12.5

quasi-spherical

150

0.232

1.15

2 (wt%)

70.9 (wt%)

PVP-MNPs

11

quasi-spherical

145

0.202

10

15 (wt%)

61.5 (wt%)

72

90

120

160

2.6

PEG-MNPs

9.5

quasi-spherical

120

0.27

−40

18 (wt%)

59.3 (wt%)

62

180

260

70

1.15

PAA-MNPs

5

quasi-spherical

75

0.241

−45

60 (wt%)

28.9 (wt%)

10

Not reached

Not reached

2

0.03