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Figure 1


Fig. 1 —Graph shows effect of poly-L-lysine (PLL) concentration on adipose-derived stem cell viability ({diamondsuit}) and percentage iron staining ({blacksquare}) in presence of ferumoxide (12.5 µg/mL of elemental iron). Error bars represent SE. Increasing concentration of PLL resulted in both increased iron staining and decreased cell viability. These data showed PLL concentration of 0.375 µg/mL as providing acceptable level of iron staining with minimal loss of cell viability. Findings led to choice of this concentration for future experiments.