|
HKUST Institutional Repository >
Physics >
PHYS Journal/Magazine Articles >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/1783.1/3322
|
| Title: | Colloidal electrostatic interactions near a conducting surface |
| Authors: | Polin, Marco
Grier, David G.
Han, Yilong |
| Keywords: | Coatings
Colloids
Conducting materials
Electric charge
Glass
Gold |
| Issue Date: | 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. |
| Description: | Physical Review E © copyright (2007) American Physical Society. The Journal's web site is located at http://pre.aps.org/ |
| URI: | http://hdl.handle.net/1783.1/3322 |
| Appears in Collections: | PHYS Journal/Magazine Articles
|
Files in This Item:
| File |
Description |
Size | Format |
|---|
| hanylpre2007.pdf | | 211Kb | Adobe PDF | View/Open |
|
Find published version via |
All items in this Repository are protected by copyright, with all rights reserved.
|
