Manning free counterions fraction for a rod-like polyion - short DNA fragments in very low salt

Tomislav Vuletic, Sanja Dolanski Babic, Danijel Grgicin +4

We quantified the Manning free (uncondensed) counterions fraction $\theta$ for dilute solutions of rod-like polyions - 150bp DNA fragments, in very low salt $<0.05$mM. Conductivity meas…