Table 1.

Particle size and zeta potential of the synthesized iron oxide nanoparticles determined in double-distilled H₂O using a Malvern-Zetasizer Nano instrument

Sample name	Particle size		Zeta potential (mV)
	Z-average (d.nm)	Pdl
dexSPIONs	75.69±0.43	0.161±0.005	−7.31
PEG-dexSPIONs	112.73±0.74	0.227±0.005	−29.2
Cet-PEG-dexSPIONs	90.79±0.83	0.251±0.007	−21.9

Abbreviations: cet, cetuximab; dex, dextran; PdI, polydispersity index; PEG, polyethylene glycol; SPIONs, superparamagnetic iron oxide nanoparticles.