Centrifugal field relaxation and ionic strength effects on calf thymus DNA gels
- 1 March 1983
- journal article
- research article
- Published by Wiley in Biopolymers
- Vol. 22 (3) , 935-943
- https://doi.org/10.1002/bip.360220314
Abstract
The gellike phase formed by DNA on sedimentation to the bottom of a centrifuge cell has been studied as a function of centrifuge speed and of solvent ionic strength. The swelling pressure of the gel was found to be logarithmically related to the DNA concentration and also to the ionic strength of the solvent. The concept of electrostatic persistence length was useful in interpreting the gel‐phase volume changes occurring with ionic strength.Keywords
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