Key Parameters on the Microwave Assisted Synthesis of Magnetic Nanoparticles for MRI Contrast Agents
Table 2
Comparison of structural and magnetic for all samples described on the manuscript.
MwE8
MwA8
TdE12
TdO15
Diameter TEM (nm) number
6.9 (0.21)
7.3 (0.21)
7.9 (0.26)
14.8 (0.17)
Diameter TEM (nm) volume
8.1
9
10.5
16.3
Diameter XRD (nm)
7.9
8.5
12.2
15.5
Diameter DLS (nm)
23 (0.2)
68 (0.5)
37 (0.3)
173 (0.3)
Diameter VSM (nm)
6.4 (0.33)
7.1 (0.4)
8.5 (0.29)
8.8 (0.27)
Volume XRD (103 nm3)
2.1
2.5
7.6
15.6
at 5 K (Am2/kgFe)
60
114
105
128
at RT (Am2/kgFe)
55
100
93
115
at 5 K (104 A/m)
2.4
2.2
2.8
3.2
at RT (104 A/m)
0.47
0.21
0.18
0.63
Zeta potential (mV) at pH 7
−34.4
−27.6
−28.3
−32.2
8
28.1
6.8
72
(mM−1 s−1)
85.2
222
143
165.6
(mM−1 s−1)
10.6
7.9
20.9
2.3
Diameter DLS is and the number between brackets is the polydispersity index; = saturation magnetization; = coercive field; = MRI transversal relaxivity; = MRI longitudinal relaxivity.
