Characteristics of surface-modified MNPs nanospheres in deionized water and in culture media.

Particles	Characteristics
	In deionized water		In media
	Size (nm)	ζ (mV)	Medium	Concentration (mM)	d mean (nm)	PDI	Stable (24 h)	ζ (mV)
MNP-SO-PEG	76 ± 1.53	−42.3	DMEM	0.1	243 ± 7	0.159 ± 0.009	Yes	−15.8 ± 0.9
				0.05	241 ± 6	0.157 ± 0.017		−16.0 ± 1.0
			RPMI	0.1	258 ± 19	0.168 ± 0.007	Yes	−15.6 ± 1.2
				0.05	255 ± 18	0.171 ± 0.006		−16.1 ± 0.9
MNP-SO-BSA	70 ± 1.29	−37.2	DMEM	0.1	97 ± 8	0.137 ± 0.013	Yes	−16.3 ± 1.0
				0.05	101 ± 10	0.134 ± 0.015		−16.7 ± 0.8
			RPMI	0.1	84 ± 9	0.138 ± 0.012	Yes	−15.4 ± 0.9
				0.05	86 ± 6	0.137 ± 0.013		−15.8 ± 1.1