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dc.contributor.authorPei, Song Chee-
dc.contributor.authorRuzairi, Abdul Rahim, Prof. Dr. -
dc.contributor.authorRashidah @ Siti Saedah, Arsat, Dr.-
dc.contributor.authorUda, Hashim, Prof. Dr.-
dc.contributor.authorLoew,  Pei Ling, Dr.-
dc.date.accessioned2014-03-20T04:54:13Z-
dc.date.available2014-03-20T04:54:13Z-
dc.date.issued2013-
dc.identifier.citationSensors and Actuators, A: Physical, vol. 204, 2013, pages 107-113en_US
dc.identifier.issn0924-4247-
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S0924424713004822-
dc.identifier.urihttp://dspace.unimap.edu.my:80/dspace/handle/123456789/32905-
dc.descriptionLink to publisher's homepage at http://www.elsevier.comen_US
dc.description.abstractThis paper proposes a new bidirectional pumping principle based on a dynamic rectification mechanism. The pump is composed of a moveable actuation platform and a gourd-shaped chamber, whose role is to behave as both a rectification and a pumping structure. An asymmetrically deflected membrane induces a differential pressure across the chamber and thus generates a pumping effect. The stream flow field inside the chamber was verified by numerical simulations. Furthermore, the feasibility of the pump was examined by developing a poly-dimethylsiloxane (PDMS)-based prototype using micro-electromechanical (MEMS) fabrication technology. Because the pumping performance is directional, the micropump characteristics were evaluated at different actuation points along the membrane. In addition, the operating performance was assessed over a range of low driving frequencies (1-10 Hz, in 1 Hz increments) and over a nominal frequency ranges (5-55 Hz, in 5 Hz increments). The proposed micropump exhibits maximum flow rates of 1.52 ml/min in the forward direction and 1.48 ml/min in the reverse direction, with resonance frequencies of 15 Hz and 20 Hz, respectively. The presented pump offers advantage in future disposable microfluidics applications due to its bi-directional properties, low fabrication cost and modular architecture.en_US
dc.language.isoenen_US
dc.publisherElsevier B.V.en_US
dc.subjectBi-directional micropumpsen_US
dc.subjectDynamic structure valveen_US
dc.subjectElectromagnetic actuationen_US
dc.subjectNumerical simulationen_US
dc.titleBidirectional flow micropump based on dynamic rectificationen_US
dc.typeArticleen_US
dc.contributor.urlpschee2@live.utm.myen_US
dc.contributor.urlruzairi@fke.utm.myen_US
dc.contributor.urlrashidah@fke.utm.myen_US
dc.contributor.urluda@unimap.edu.myen_US
dc.contributor.urlleowpl@fke.utm.myen_US
Appears in Collections:Uda Hashim, Prof. Ts. Dr.
Institute of Nano Electronic Engineering (INEE) (Articles)

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