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Open AccessArticle

Development of Active Centrifugal Pump for Microfluidic CD Platforms

1
NanoLab, School of Applied Technical Sciences, German Jordanian University (GJU), Amman 11180, Jordan
2
Institut für Mikrotechnik, Technische Universität Braunschweig, Braunschweig 38106, Germany
3
Faculty of Engineering, Middle East University, Amman 11831, Jordan
4
School of Engineering and Technology, Central Michigan University, Mount Pleasant, MI 48859, USA
*
Author to whom correspondence should be addressed.
Micromachines 2020, 11(2), 140; https://doi.org/10.3390/mi11020140
Received: 8 December 2019 / Revised: 14 January 2020 / Accepted: 16 January 2020 / Published: 27 January 2020
(This article belongs to the Section A:Physics)
The continuous emerging of microfluidic compact disc (CD) platforms for various real-life applications motivates researchers to explore new innovative ideas towards more integrated active functions. However, microfluidic CDs have some drawbacks, including the unidirectional flow that limits the usable space for multi-stepped biological and chemical assays. In this work, a novel active and bidirectional centrifugal pump is developed and integrated on microfluidic CDs. The design of the developed pump partially replicates the designs of the conventional centrifugal pumps with a modification in the connecting channels’ positions that allow the developed pump to be reversible. The main advantage of the proposed centrifugal pump is that the pumping speed can be accurately controlled during spinning or while the microfluidic CD is stationary. Performance tests show that the pumping speed can reach up to 164.93 mm3/s at a pump rotational speed (impellers speed) of 4288 rpm. At that speed, 1 mL of water could be pumped in 6.06 s. To present a few of the potential applications of the centrifugal pump, flow reciprocation, bidirectional pumping, and flow switching were performed and evaluated. Results show that the developed centrifugal pump can pump 1096 µL of liquid towards the CD center at 87% pumping efficiency while spinning the microfluidic CD at 250 rpm. This novel centrifugal pump can significantly widen the range of the applicability of microfluidic CDs in advanced chemical processes and biological assays.
Keywords: microfluidics; lab-on-disc; micro pumping; centrifugal pumps microfluidics; lab-on-disc; micro pumping; centrifugal pumps
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MDPI and ACS Style

Al-Halhouli, A.; Far, B.E.; Albagdady, A.; Al-Faqheri, W. Development of Active Centrifugal Pump for Microfluidic CD Platforms. Micromachines 2020, 11, 140.

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