Conference Publication Details
Mandatory Fields
Kitsara M.;Nwankire C.;O'Reilly A.;Siegrist J.;Donohoe G.;Zhang X.;O'Kennedy R.;Ducrée J.
Proceedings of the 16th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2012
Hydrophilic polymeric coatings for enhanced, serial-siphon based flow control on centrifugal lab-on-a-disc platforms
2012
January
Published
1
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Optional Fields
Capillary force Centrifugal microfluidic platform Hydrophilization Lab-on-a-disc Serial siphon Spin coating
1255
1257
In this paper, we implement rotational flow control on a polymeric microfluidic "lab-on-a-disc" device by combining serial siphoning and capillary valving for sequential release of on-board stored liquid reagents. The functionality of this integrated, multi-step centrifugal assay platform is tightly linked by the capability to establish reproducible, capillary-driven priming of the innately hydrophobic siphon microchannels. We here demonstrate for the first time that spin-coated hydrophilic polymeric films of poly(vinyl alcohol) and (hydroxylpropyl)methyl cellulose provide stable contact angles.
Grant Details