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. Author manuscript; available in PMC: 2012 Aug 1.
Published in final edited form as: Nanomedicine. 2011 Jan 25;7(4):505–513. doi: 10.1016/j.nano.2011.01.006

Figure 1.

Figure 1

Dose-dependent effect of PEI2-GNP on human corneal fibroblast viability. Cultures were exposed to five different concentrations of PEI2-GNP (N/P ratios of 60, 90, 120, 180, and 210) for 1 h, and cellular viability was quantified with a trypan blue assay.