Characterizing the interaction between DNA and GelRed fluorescent stain

  title={Characterizing the interaction between DNA and GelRed fluorescent stain},
  author={F. A. P. Crisafuli and Eva Ramos and M S Rocha},
  journal={European Biophysics Journal},
We have performed single-molecule stretching and dynamic light-scattering (DLS) experiments to characterize the interaction between the DNA molecule and the fluorescent stain GelRed. The results from single-molecule stretching show that the persistence length of DNA–GelRed complexes increases as the ligand concentration increases up to a critical concentration, then decreases for higher concentrations. The contour length of the complexes, on the other hand, increases monotonically as a function… CONTINUE READING
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