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. Author manuscript; available in PMC: 2009 Feb 26.
Published in final edited form as: Biomaterials. 2005 May;26(13):1575–1584. doi: 10.1016/j.biomaterials.2004.05.007

Fig. 3.

Fig. 3

Surface densities of DNA/PEI complexes immobilized to HA-collagen- NA hydrogels for complexes formed in 15 0mm NaCl (B) or water (C). Plotted data is an average of triplicate conditions±SD. Fluorescence photomicrographs of immobilized biotinylated DNA/PEI complexes (N/P=5) to HA-collagen-NA hydrogels. Biotinylated complexes formed in water (B) or 150mm NaCl (C) were incubated on the substrate for 120 min. Images were captured after washing the substrate with PBS buffer.