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Proceedings Paper

Polymer-based valves with tunable opening pressures for biomedical applications
Author(s): Changgeng Liu; Yifan Qiu; Kun Lian
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Paper Abstract

A series of polymer-based Polydimethylsiloxanes (PDMS) ball valves with different opening pressures have been developed for biomedical applications. By tuning different weight ratios of the two components (the base and the curing agent) of PDMS, the valves will have different opening pressures because of different stiffness of the PDMS materials. The curing conditions and mechanical properties of the PDMS material with different ratios have been thoroughly studied. The compressive Young's modulus of the material can be tuned from 310 KPa to 2.0 MPa. Such kind valves can be fabricated by injection molding, one of the cheapest fabrication techniques. Also such kind valve has no dead volume and easily to be integrated into micro-total analysis systems (μTAS).

Paper Details

Date Published: 22 January 2005
PDF: 7 pages
Proc. SPIE 5718, Microfluidics, BioMEMS, and Medical Microsystems III, (22 January 2005); doi: 10.1117/12.590859
Show Author Affiliations
Changgeng Liu, Louisiana State Univ. (United States)
Yifan Qiu, Louisiana State Univ. (United States)
Kun Lian, Louisiana State Univ. (United States)

Published in SPIE Proceedings Vol. 5718:
Microfluidics, BioMEMS, and Medical Microsystems III
Ian Papautsky; Isabelle Chartier, Editor(s)

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