Table 1. Zeta potential and average hydrodynamic sizes of aggregates of investigated CoFe-MNPs in different media.

Particle (CoFe-MNPs)	Media	Zeta potential (mV)	DLS mean size (nm)
Bare	Water	–33.5	192.70 ± 15.13
	RPMI-1640	–15.4	869.00 ± 12.00
	RPMI-1640 10%FBS	–11.3	189.75 ± 4.20
SiO2 coated	Water	–39.5	175.73 ± 4.63
	RPMI-1640	–20.6	708.40 ± 14.28
	RPMI-1640 10%FBS	–9.8	160.03 ± 10.15