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Simultaneous improvement of surface finish and bonding of centrifugal microfluidic devices in cyclo-olefin polymers

Simultaneous improvement of surface finish and bonding of centrifugal microfluidic devices in cyclo-olefin polymers

Category
Conference lecture and academic presentation
Abstract
Two key issues in the manufacturing of microfluidic devices are to obtain low surface roughness, i.e. in the range of nanometers (to facilitate optical detection and controlled flow through microfluidic networks), and to achieve robust bonding. Here we report that a chemical polishing step, used for smoothening the surface of cyclo-olefin polymer (COP) components manufactured by micromilling, reduces the surface roughness (to Ra ~ 150 nm) and facilitates a leak-tight COP-COP bond. We report new results on COP structuring and surface characterization by white light interferometry (WLI), infrared spectroscopy (FTIR-ATR), contact angle measurements and transmittance measurements, as well as demonstrations of a functional thermally bonded centrifugal microfluidic devices.
Client
  • Norges forskningsråd / 245685
  • EC/H2020 / 688448
Language
English
Affiliation
  • SINTEF Digital / Microsystems and Nanotechnology
  • SINTEF Industry / Materials and Nanotechnology
  • University of South-Eastern Norway
  • SINTEF Industry / Sustainable Energy Technology
  • SINTEF Industry / Process Technology
Presented at
The 31st IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2018
Place
Belfast
Date
20.01.2018 - 24.01.2018
Organizer
IEEE
Year
2018