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. Author manuscript; available in PMC: 2010 Mar 1.
Published in final edited form as: Acta Biomater. 2008 Oct 21;5(3):903–912. doi: 10.1016/j.actbio.2008.10.003

Fig. 3.

Fig. 3

Cumulative release of DNA from the surface as a function of time. Peptide–lipoplexes containing radiolabeled DNA at peptide/DNA ratios of 0 (▲), 1 (◆), 10 (■) and 100 (●) were immobilized to tissue-culture polystyrene and exposed to serum-containing media. Cumulative release of DNA was measured as various time points by extracting samples from the media and measuring DNA content using a scintillation counter. Data are presented as the mean of triplicate measurements ± standard deviation (*p<0.05).