A rapid prototyping technique for valves and filters in centrifugal microfluidic devices

Using short lengths of fused silica capillary tubing embedded in the disk, a system for valving and filtering samples on centrifugal microfluidic devices has been designed and implemented. Sedimentation of turbid samples and transfer of the clear supernatant was also accomplished. Also demonstrated...

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Bibliographic Details
Published in:Lab on a chip 2009-01, Vol.9 (21), p.3151-3154
Main Authors: LaCroix-Fralish, Angela, Templeton, Erin J, Salin, Eric D, Skinner, Cameron D
Format: Article
Language:English
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Summary:Using short lengths of fused silica capillary tubing embedded in the disk, a system for valving and filtering samples on centrifugal microfluidic devices has been designed and implemented. Sedimentation of turbid samples and transfer of the clear supernatant was also accomplished. Also demonstrated is the transfer of the liquid through a second capillary valve to the final reservoir. By controlling rotational speed, sedimentation and multiple step valving operations are readily implemented and easily prototyped.
ISSN:1473-0197
1473-0189
DOI:10.1039/b908683h