Laser-printed fluidic channels for the manufacture of multiplexed paper-based diagnostic sensors

Eason, Robert, Katis, Ioannis, He, Peijun and Sones, Collin (2016) Laser-printed fluidic channels for the manufacture of multiplexed paper-based diagnostic sensors. Advances in printed sensors, London, United Kingdom. 2 pp .

Record type: Conference or Workshop Item (Other)

Abstract

Paper-based microfluidics is a rapidly progressing inter-disciplinary technology driven by the need for low-cost alternatives to conventional point-of-care diagnostic tools. For transport of reagents/analytes, such devices often consist of interconnected hydrophilic fluid-flow channels that are demarcated by hydrophobic barrier walls that extend through the thickness of the paper. Here, we present a laser-based fabrication procedure that uses laser-induced polymerisation of a photopolymer to produce the required fluidic channels in paper or other porous materials. Experimental results showed that the structures successfully guide the flow of fluids and also allow containment of fluids in wells, and hence the technique is suitable for fabrication of paper-based microfluidic devices.
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