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. Author manuscript; available in PMC: 2014 Jan 1.
Published in final edited form as: Biomaterials. 2012 Oct 13;34(1):283–293. doi: 10.1016/j.biomaterials.2012.09.057

FIGURE 6.

FIGURE 6

Representative bright-field optical microscopy images after 7 days of (A–B) HeLa cell colonies formed from control cells (untreated cells); (C–D) HeLa cell colonies formed after individual HeLa cells were initially incubated with only PEG-DSPE solution; (E–F) HeLa cell colonies formed after individual HeLa cells were initially incubated with 1 μg/ml O-GNR-PEG-DSPE’s; (G–H) HeLa cell colonies formed after individual HeLa cells were initially incubated with 10μg/ml O-GNR-PEG-DSPE’s; (I–J) MCF7 cell colonies formed from control cells (untreated cells); (K–L) MCF7 cell colonies formed after individual MCF7 cells were initially incubated with to 30 μg/ml O-GNR-PEG-DSPE solution. (M) Quantified colony areas for HeLa cells (Control, incubated with to only PEG-DSPE and treated with 1 μg/ml and 10μg/ml O-GNR-PEG-DSPE solutions), and MCF7 cells (Control, and treated with 30 μg/ml O-GNR-PEG-DSPE solution).Data are presented as mean ± SD (n = 6 per group). * = p < 0.05 between groups. All the optical images images have a size bar of 200 μm.