Table 1.

Viability of ASCs (assessed by Trypan blue viability test) incubated for 24 hours and 72 hours with increasing concentrations of USPIO

	12.5 µg Fe/mL	25 µg Fe/mL	50 µg Fe/mL	100 µg Fe/mL	200 µg Fe/mL	Nonlabeled
24 hours	100.0±0	90.7±6.3	89.8±5.2	93.5±4.3	97.0±1.5	100.0±0
72 hours	96.2±2.1	98.0±1.1	97.0±2.1	100.0±0	92.9±2.3	98.7±1.1

Note: Data are shown as mean percentage ± SEM.

Abbreviations: ASCs, adipose stem cells; SEM, standard error of the mean; USPIO, ultrasmall superparamagnetic iron oxide nanoparticles.