| Title | Particle patterning using fluidics and electric fields |
| Publication Type | Journal Article |
| Year of Publication | 2008 |
| Authors | Arnold, W.M. |
| Journal | IEEE Transactions on Dielectrics and Electrical Insulation |
| Volume | 15 |
| Issue | 1 |
| Pagination | 144 - 151 |
| Date Published | 2008 |
| ISSN | 10709878 (ISSN) |
| Keywords | Artificial tissue, Charged particles, Electric fields, Electrophoresis, Field-induced forces, FLOW OF FLUIDS, Fluidics, Particle incorporation, Suspensions (fluids) |
| Abstract | Electric-field manipulation of micro-particles in suspension can create patterns via a number of particle forces and fluid flows. These effects are assessed for their suitability for down-scaling to form nano-patterns such as may be incorporated into structured nano-composites. Consideration is given not only to the assembly of field-aligned chains or wires, but also to methods that can give cross-field assembly and even 2-D patterns or crystals. Dielectrophoresis is often the dominant driving force behind particle assembly, but other dipole-dipole interactions and also electrically-driven fluid flows are increasingly recognized as significant or dominant. Orientation of nonspherical particles in frequency-selectable directions is also possible. Estimates for the threshold field strengths required for using these effects to handle nano-particles are considered. Finally the use of media with modified permittivity to increase the field-induced forces or to optimize the selectivity of particle incorporation is discussed. © 2008 IEEE. |
| URL | http://www.scopus.com/inward/record.url?eid=2-s2.0-38949104086&partnerID=40&md5=d555a3cf127ca3d8971b332009051a01 |
| DOI | 10.1109/T-DEI.2008.4446745 |
