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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

The Neutral red assay to assess the cell viability of HeLa, MCF7 and SKBR3 cells incubated with PEG -DSPE(control) and various O-GNR-PEG-DSPE (10–400 μg/ml) concentrations at (A) 24 and (B) 48 hours. Data are presented as mean ± SD (n = 6 per group). * = p < 0.05 between groups at that particular concentration.

The Neutral red assay to assess the cell viability of HeLa, MCF7 and SKBR3 cells incubated with PEG -DSPE(control) and various O-GNR-PEG-DSPE (10–400 μg/ml) concentrations at (A) 24 and (B) 48 hours. Data are presented as mean ± SD (n = 6 per group). * = p < 0.05 between groups at that particular concentration.