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. Author manuscript; available in PMC: 2012 Aug 16.
Published in final edited form as: Langmuir. 2011 Feb 16;27(6):2739–2746. doi: 10.1021/la104313z

Figure 8.

Figure 8

Cytotoxicity of the modified surfaces. The viability of NIH/3T3 cells cultured on a SAM-modified gold-coated glass surface, a 0.1 μg/μL DPP-treated SAM-modified surface, and a 0.1 μg/μL sDPP-treated SAM-modified surface were assessed 24 h post-transfection by fluorescence microscopy of ethidium homodimer-1 stained samples. The error bars represent one standard deviation from the mean of 4 separate samples. Statistically significant differences were observed between the samples indicated with an asterisk or a double asterisk (p≤0.025).