Ion current rectification and rectification inversion in conical nanopores: a perm-selective view

Ionic transport in charged conical nanopores is known to give rise to ion current rectification. The present study shows that the rectification direction can be inverted when using electrolyte solutions at very low ionic strengths. To elucidate these phenomena, electroneutral conical nanopores containing a perm-selective region at the tip have been investigated and shown to behave like classical charged nanopores. An analytical model is proposed to account for these rectification processes.


Published in:
Physical Chemistry Chemical Physics -Cambridge- Royal Society of Chemistry, 13, 5430-5440
Year:
2011
Publisher:
Royal Society of Chemistry
ISSN:
1463-9076
Keywords:
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 Record created 2011-05-11, last modified 2018-03-17

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