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A reliable method for bonding polydimethylsiloxane (PDMS) to polymethylmethacrylate (PMMA) and its application in micropumps

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A reliable method for bonding polydimethylsiloxane (PDMS) to polymethylmethacrylate (PMMA) and its application in micropumps

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dc.contributor.author Tan, Hsih Yin
dc.contributor.author Loke, Weng Keong
dc.contributor.author Nguyen, Nam-Trung
dc.date.accessioned 2012-04-12T04:15:09Z
dc.date.available 2012-04-12T04:15:09Z
dc.date.copyright 2010
dc.date.issued 2012-04-12
dc.identifier.citation Tan, H. Y., Loke, W. K., & Nguyen, N. T. (2010). A reliable method for bonding polydimethylsiloxane (PDMS) to polymethylmethacrylate (PMMA) and its application in micropumps. Sensors and Actuators B: Chemical, 151(1), 133-139.
dc.identifier.uri http://hdl.handle.net/10220/7746
dc.description.abstract Poly(methylmethacrylate) (PMMA) attracts growing interest in microfluidics research community due to its low cost, high transparency, good mechanical and chemical properties. The more flexible polydimethylsiloxane (PDMS) is well suited for pneumatic actuation. However, PDMS is permeable to gases and absorbs molecules from the sample liquids. Combining PMMA with PDMS would allow a microfluidic device to utilize advantages of both materials. Bonding PMMA to PDMS is a critical step for this hybrid approach. In this paper, we present a simple, fast and reliable technique for bonding PMMA to PDMS. A 25 μm thick adhesive film (ARclear® Optically clear adhesive 8154, Adhesive Research, Glen Rock, PA USA) was laminated onto a clean PMMA surface. Subsequently, pre-cured PDMS mixture was spin coated onto the adhesive film. After curing, the adhesive and the PDMS layer form a hybrid membrane. The bonding quality and the strength of the PDMS/adhesive membrane was tested using a precision pressure source. A peristaltic micropump was fabricated by bonding a PDMS part with microchannels to the PDMS/PMMA part. The PDMS/adhesive membrane acts as the pneumatic actuator for the micropump. Pressurized air was switched to the three pneumatic actuators by solenoid valves and control electronics. The micropumps can achieve a flow rate as high as 96 μl/min. The techniques reported in this paper allow the integration of microfluidic components made of both PMMA and PDMS in a single device.
dc.format.extent 30 p.
dc.language.iso en
dc.relation.ispartofseries Sensors and actuators B: chemical
dc.rights © 2010 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Sensors and Actuators B: Chemical, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: http://dx.doi.org.ezlibproxy1.ntu.edu.sg/10.1016/j.snb.2010.09.035
dc.subject DRNTU::Engineering::Mechanical engineering.
dc.title A reliable method for bonding polydimethylsiloxane (PDMS) to polymethylmethacrylate (PMMA) and its application in micropumps
dc.type Journal Article
dc.contributor.school School of Mechanical and Aerospace Engineering
dc.identifier.doi http://dx.doi.org.ezlibproxy1.ntu.edu.sg/10.1016/j.snb.2010.09.035
dc.description.version Accepted version
dc.identifier.rims 159370

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