Size-Controlled Synthesis of CoFe₂O₄ Nanoparticles Potential Contrast Agent for MRI and Investigation on Their Size-Dependent Magnetic Properties

Table 1

Diameters of CoFe₂O₄/H⁺/citrate NPS measured by different methods for five different samples (denoted as SP1, SP2, SP3, SP4. and SP5).

Sample	D VSM/nm	D TEM/nm	D PCS/nm
SP1	4.61	7.25	12.98
SP2	5.53	8.51	15.97
SP3	5.90	9.26	19.25
SP4	6.13	10.38	28.35
SP5	7.04	11.02	37.89