Table I.

Physical properties of IONP agglomerates.

				Zeta potential (mV)
Particle type	Nomenclature	Diameter (nm)	Polydispersity	Water	Culture media
Carboxyl- small	C442S	276 ± 6	0.254	−37.6 ± 3.4	−17.2 ± 2.3
Carboxyl- large	C442L	689 ± 43	0.250	−32.6 ± 1.0	−17.3 ± 2.0
Amine- small	A262S	360 ± 15	0.204	−32.5 ± 0.7	−15.2 ± 1.9
Amine- large	A262L	1463 ± 93	0.261	−28.6 ± 3.8	−12.5 ± 2.9

IONP, iron oxide nanoparticle.