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. Author manuscript; available in PMC: 2009 Feb 26.
Published in final edited form as: Biotechnol Bioeng. 2005 May 5;90(3):290–302. doi: 10.1002/bit.20393

Figure 3.

Figure 3

DNA deposition and stability. (A) Polyplexes (circles) and lipoplexes (triangles) were deposited onto polystyrene (●, ▲) and serum-coated polystyrene (○, △) for 24 h. Substrates were incubated with 2 μg of DNA; (B) immobilized polyplexes and lipoplexes were exposed to phosphate-buffered saline (PBS, pH 7.4); (C) conditioned media; (D) polyplexes incubated with cell growth media (●, PS; ○, FBS-PS), and trypsin (■, PS; □, FBS-PS) at 37°C. Data are presented as average ± standard deviation of the mean. *P < 0.05 relative to FBS-PS deposition of polyplexes after 24 h; **P × 0.05 relative to lipoplexes released from PS at 8 days.