Facile Synthesis Polyethylene Glycol Coated Magnetite Nanoparticles for High Colloidal Stability

Table 1

Hydrodynamic size and polydispersity index of MNPs with different loading amount of PEG 600 Da.

Sample	Hydrodynamic size (nm)	Polydispersity index (PDI)	Zeta potential (mV)
Uncoated	42.9	0.214	−29.8
0.6 g	44.1	0.200	−35.9
0.8 g	36.7	0.188	−41.1
1.0 g	35.5	0.178	−43.6
2.0 g	35.9	0.176	−45.6
3.0 g	32.3	0.168	−45.8