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Fig. 4 | BMC Chemistry

Fig. 4

From: Flexibility and thermal dynamic stability increase of dsDNA induced by Ru(bpy)2dppz2+ based on AFM and HRM technique

Fig. 4

The change of DNA length as a function of the ruthenium intercalation. The curve presents the fractional extension (L/L0) defined as the increase of the end-to-end distance (L) due to the intercalation of Ru(bpy)2dppz2+ normalized by the natural length of the DNA molecule (without Ru), plotted over the Ru/DNAbps ratio (red circle). The blue solid line represents the fit from the model of McGhee and von Hippel (Eq. 1). The results were best fit for Ka: 5.9 * 106 M−1 and p: 2.87 bp

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