Title: A thermally actuated microfluidic relay valve
Abstract:This work demonstrates a new 2-stage valving concept for microfluidic systems based on polydimethylsiloxane (PDMS) that uses the reversible gelation of a thermally responsive polymer solution in a con...This work demonstrates a new 2-stage valving concept for microfluidic systems based on polydimethylsiloxane (PDMS) that uses the reversible gelation of a thermally responsive polymer solution in a control channel to deflect a membrane into the main flow channel for flow control. This method can control flow through a system of PDMS channels using integrated electric heating elements and only one control pressure source, compared to the off-chip pressure manifold needed in existing systems. This valve technology therefore enables the formation of portable diagnostics tools for biomedical applications and environmental monitoring allowing on-site analysis. Valves with zero leakage rates and a response time of about 5 seconds have been achieved.Read More
Publication Year: 2009
Publication Date: 2009-06-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 2
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