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. Author manuscript; available in PMC: 2013 Feb 1.
Published in final edited form as: Biomaterials. 2011 Nov 5;33(4):1154–1161. doi: 10.1016/j.biomaterials.2011.10.033

Figure 4. FAM labeled siRNA and si-NPs distribution within the PUR scaffold.

Figure 4

Comparison of fluorescent confocal images of PUR scaffolds loaded with FAM-labeled siRNA or si-NPs. Row 1 is a scaffold loaded with naked siRNA. Row 2 is a scaffold loaded with si-NPs. The 3rd row is an empty scaffold to verify that there is no green autofluorescence of the PUR scaffold. Note that scaffold pores contain no fluorescence, and the distribution between naked siRNA and si-NPs is similar.