Table 1.

Hydrodynamic size of nanoparticles (DLS) in water, PBS, cell culture medium, and after six months.

Sample	Water–PDI (nm)		PBS–PDI (nm)		Cell Medium–PDI (nm)		Particles after 6 Months, Water (nm)
F127 Coated SPION	185.2 ± 4.0	0.135 ± 0.01	192.3 ± 9.6	0.138 ± 0.03	182.3 ± 4.2	0.141 ± 0.1	156.7 ± 4.3	0.182 ± 0.02
F127-Folate coated SPION	183.6 ± 2.8	0.122 ± 0.01	194.4 ± 7.8	0.139 ± 0.01	174.4 ± 7.8	0.109 ± 0.02	158.6 ± 4.7	0.175 ± 0.02