Roll-to-plate fabrication of microfluidic devices with rheology-modified thiol-ene resins

Research output: Contribution to journalJournal articleResearchpeer-review

Silja Senkbeil, Johanna Aho, Leif Yde, Lars R. Lindvold, Jan F. Stensborg, Jukka Rantanen, Josiane P. Lafleur, Jörg P. Kutter

In this paper, the replication possibilities of microfluidic channels by UV-roll-to-plate fabrication were investigated and a study of rheology-modified thiol-ene for the application in such a UV-roll-to-plate setup was conducted. The system allows the manufacture of channels with aspect ratios of 2:1 and a maximal channel depth of 90 μm as well as the sealing of the finished devices with patterning and sealing speeds of up to 19 m min-1. By adding fumed silica nanoparticles to the uncured resins, it was possible to alter the rheological behavior of the resin system to fabricate shallow microfluidic channels with 40 × 95 μm cross-sectional dimensions. Moreover, deeper (90 μm) channels can be fabricated with highly viscous resins based on thiol-terminated oligomers. As a demonstration, capillary electrophoresis chips were prepared and tested for a simple separation of two fluorescent dyes.

Original languageEnglish
Article number075014
JournalJournal of Micromechanics and Microengineering
Issue number7
Number of pages9
Publication statusPublished - 20 Jun 2016

    Research areas

  • microfluidic device, rheology modification, roll-to-roll fabrication, thiol-ene polymers

ID: 165884252