Abstract
THE dependence on concentration of the hydrodynamic properties of DNA solutions has been the subject of some recent publications1–4. It has been shown in particular1, that under specified conditions the dependence on concentration of the reduced viscosity and the sedimentation coefficient of aqueous DNA solutions may be expressed by empirical formulæ that are formally analogous to those found to apply for most uncharged polymer solutions, namely: 
In these equations the symbols s and s0 represent the sedimentation coefficients at concentration c and zero respectively. ηsp/c and [η] are the corresponding reduced viscosity values and α and k are dimensionless constants.
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DARSKUS, R., JORDAN, D. & KURUCSEV, T. Concentration Effects in Measurements of Sedimentation Velocity and Viscosity of Deoxyribonucleic Acid Solutions. Nature 201, 1215 (1964). https://doi.org/10.1038/2011215a0
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DOI: https://doi.org/10.1038/2011215a0
