| Autor: |
P. Strating, F. W. Wiegel, A. E. García |
| Přispěvatelé: |
Physics of Complex Fluids |
| Jazyk: |
angličtina |
| Rok vydání: |
1993 |
| Předmět: |
|
| Zdroj: |
Modern physics letters. B, 7(7), 483-490. World Scientific Press |
| ISSN: |
0217-9849 |
| Popis: |
In this paper we evaluate the distribution of ions around a charged cylinder, in thermal equilibrium, taking into account the main effects of the excluded volume of the counterions. The cylinder is a model of a DNA molecule. There are major corrections to the standard Gouy-Chapman theory when the electrostatic energy due to the charge of the cylinder is large as compared to the thermal energy. The concentration shows a distinct saturation effect over a finite region, which may be interpreted as the Stern layer of immobilized ions. The known saturation of the electrostatic potential at the surface of the cylinder is removed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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