| Autor: |
Lyles, B. F., Terrot, M. S., Hammond, P. T., Gast, A. P. |
| Zdroj: |
Langmuir; April 2004, Vol. 20 Issue: 8 p3028-3031, 4p |
| Abstrakt: |
Here we present a study of patterning micrometer-sized features on glass surfaces with magnetic colloids. We employ a polyelectrolyte foundation composed of five bilayers on the surface of a glass slide. The directed assembly of carboxylate-modified superparamagnetic particles is accomplished by creating patterned regions of opposite charge via polymer-on-polymer stamping. Dot patterns created in a two-dimensional square array produce colloidal clusters with diameters ranging from 1 to 12 μm. Individual magnetic particles were patterned on the glass surface with micrometer-scale precision. Striped patterns also produced lines of magnetic particles varying in spacing and width from 1 to 7 μm. |
| Databáze: |
Supplemental Index |
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