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|Title: ||Colloidal electrostatic interactions near a conducting surface|
|Authors: ||Han, Yilong|
Grier, David G.
|Issue Date: ||30-Oct-2007 |
|Citation: ||Physical review. E, v. 76, 041406 (2007)|
|Abstract: ||Like-charged colloidal spheres dispersed in de-ionized water are supposed to repel each other. Instead, artifact-corrected video microscopy measurements reveal an anomalous long-ranged like-charge attraction in the interparticle pair potential when the spheres are confined to a layer by even a single-charged glass surface. These attractions can be masked by electrostatic repulsions at low ionic strengths. Coating the bounding surfaces with a conducting gold layer suppresses the attraction. These observations suggest a possible mechanism for the anomalous confinement-induced attractions.|
|Rights: ||Physical Review E © copyright (2007) American Physical Society. The Journal's web site is located at http://pre.aps.org/'|
|Appears in Collections:||PHYS Journal/Magazine Articles|
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