Polymer-based valves with tunable opening pressures for biomedical applications

Changgeng Liu; Yifan Qiu; Kun Lian

doi:10.1117/12.590859

22 January 2005 Polymer-based valves with tunable opening pressures for biomedical applications

Changgeng Liu, Yifan Qiu, Kun Lian

Proceedings Volume 5718, Microfluidics, BioMEMS, and Medical Microsystems III; (2005) https://doi.org/10.1117/12.590859
Event: MOEMS-MEMS Micro and Nanofabrication, 2005, San Jose, California, United States

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).

Citation Download Citation

Changgeng Liu, Yifan Qiu, and Kun Lian "Polymer-based valves with tunable opening pressures for biomedical applications", Proc. SPIE 5718, Microfluidics, BioMEMS, and Medical Microsystems III, (22 January 2005); https://doi.org/10.1117/12.590859

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