Three-dimensional dielectrophoretic microparticle separator fabricated by ultraviolet-assisted direct-write assembly

Hamid Dalir, Rouhollah D. Farahani, Lewith Hernandez, Clement Aldebert, Martin Lévesque, Daniel Therriault

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


The design and fabrication of complex microfluidic devices is a subject of broad biomedical and technological interest. In this paper, we demonstrate the fabrication of a three-dimensional (3D) dielectrophoretic microparticle separator involving ultraviolet (UV)-assisted direct-write assembly of a UV-curable polyurethane. This approach yields a series of 3D microcoil interdigitated electrodes with defined geometry promoting particle separation through dielectrophoresis. These vertical microcoils give rise to considerable improvements in separation relative to standard planar (2D) microelectrodes. We envisage that the complex 3D electrodes will provide an enabling platform for a wide array of fluidic- and electronic-based applications.

Original languageEnglish (US)
Pages (from-to)765-771
Number of pages7
JournalJournal of Nanoscience and Nanotechnology
Issue number1
StatePublished - Jan 1 2016


  • 3D microfluidic devices
  • Dielectrophoresis
  • Lab-on-a-chip
  • Particle separation
  • UV assisted direct-write assembly

ASJC Scopus subject areas

  • Bioengineering
  • General Chemistry
  • Biomedical Engineering
  • General Materials Science
  • Condensed Matter Physics


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