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. Author manuscript; available in PMC: 2014 Apr 23.
Published in final edited form as: Methods. 2013 Apr 23;60(2):161–168. doi: 10.1016/j.ymeth.2013.02.019

Figure 2.

Figure 2

A typical force–distance curve obtained for the interactions between complementary DNA strands in a single tether approach: 1) Short-range adhesion peak due to nonspecific interactions between the surface and the tip of the probe, 2) this region is indicative of polymer linker stretching, 3) specific rupture peak. Region 2 of the curve is fitted with a) worm-like chain polymer model (WLC, continuous green line) and b) freely-jointed chain polymer model for comparison (FJC, continuous red line). Both models provide a good fit with the following residual RMS values: 6.9 pN for WLC model and 6.7 pN for FJC model.