| Autor: |
Liu, Yang, Sauer, Jon, Dutton, Robert |
| Rok vydání: |
2007 |
| Předmět: |
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| Druh dokumentu: |
Working Paper |
| DOI: |
10.1063/1.2906327 |
| Popis: |
A numerical study within the framework of the Poisson-Nernst-Planck equations is conducted to investigate electrostatic screening of charged bio-molecules within synthetic pores having diameters of at least 10 Debye lengths. We show that with external biases, the bio-molecule charge is only partially screened due to the presence of electrodiffusion current flow. This is considerably different from the equilibrium Debye-Huckel screening behavior and will result in long-range electrostatic interactions. The potential application to direct bio-molecule charge sensing is also discussed. |
| Databáze: |
arXiv |
| Externí odkaz: |
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