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Microfluidic PMMA interfaces for rectangular glass capillaries

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Author

Summary, in English

We present the design and fabrication of a polymeric capillary fluidic interface fabricated by micro-milling. The design enables the use of glass capillaries with any kind of cross-section in complex microfluidic setups. We demonstrate two different designs of the interface; a double-inlet interface for hydrodynamic focusing and a capillary interface with integrated pneumatic valves. Both capillary interfaces are presented together with examples of practical applications. This communication shows the design optimization and presents details of the fabrication process. The capillary interface opens up for the use of complex microfluidic systems in single-use glass capillaries. They also enable simple fabrication of glass/polymer hybrid devices that can be beneficial in many research fields where a pure polymer chip negatively affects the device's performance, e.g. acoustofluidics.

Publishing year

2014

Language

English

Publication/Series

Journal of Micromechanics and Microengineering

Volume

24

Issue

2

Document type

Journal article

Publisher

IOP Publishing

Topic

  • Medical Engineering

Keywords

  • acoustophoresis
  • capillaries
  • lab-on-a-chip
  • PMMA
  • system interfacing

Status

Published

ISBN/ISSN/Other

  • ISSN: 0960-1317