Key Parameters on the Microwave Assisted Synthesis of Magnetic Nanoparticles for MRI Contrast Agents

Table 1

Comparison of nanoparticle sizes when changing the iron concentration and the oleic acid/Fe molar ratio.

Molar ratio 5 (Oleic/Fe)	[Fe] mg/ml	2	3	4	5
	() nm	8.2 (±2.2)	9.7 (±2.7)	6.9 (±1.5)	6.7 (±1.7)
[Fe] = 4 mg/ml	Molar ratio (oleic/Fe)	2	3.5	5	6.5
	() nm	6.5 (±1.3)	7.1 (±2.2)	6.9 (±1.5)	5.7 (±1.2)