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Electrokinetic behaviour of overlapped electric double layers in nanofluidic channels

Huang, Kuan-Da and Yang, Ruey-Jen (2007) Electrokinetic behaviour of overlapped electric double layers in nanofluidic channels. NANOTECHNOLOGY, 18 (11).

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Official URL: http://www.iop.org/EJ/abstract/0957-4484/18/11/115...

Abstract

The ionic concentration variation arising in overlapped electric double layers in nanochannels presents different electrokinetic behaviour from that in microchannels. Using a modified concentration approach, the results reveal that the surface charge density is insensitive to the concentration in the low-salt regime, and a nearly constant streaming conductance is predicted. A scaling analysis confirms that the streaming potential also has a constant value because of length scale effects, but not due to the accumulated charge in the double layer.

Item Type:Article
Subjects:Physical Science > Nanophysics
Material Science > Nanochemistry
ID Code:6258
Deposited By:IoN
Deposited On:22 Dec 2009 16:40
Last Modified:22 Dec 2009 16:40

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