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Mixing characterisation for a serpentine microchannel equipped with embedded barriers

Khoshmanesh, K., Tovar-Lopez, F. J., Nasabi, M., Kouzani, A., Nahavandi, S., Kanwar, J., Baratchi, S., Kalantar-zadeh, K. and Mitchell, A. 2008, Mixing characterisation for a serpentine microchannel equipped with embedded barriers, in SPIE 2008 : Progress in biomedical optics and imaging : Proceedings of SPIE Biomedical Applications of Micro- and Nanoengineering IV and Complex Systems conference, SPIE : The International Society for Optical Engineering, Bellingham, Wash., pp. 1-11, doi: 10.1117/12.810678.

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Title Mixing characterisation for a serpentine microchannel equipped with embedded barriers
Author(s) Khoshmanesh, K.
Tovar-Lopez, F. J.
Nasabi, M.
Kouzani, A.ORCID iD for Kouzani, A. orcid.org/0000-0002-6292-1214
Nahavandi, S.ORCID iD for Nahavandi, S. orcid.org/0000-0002-0360-5270
Kanwar, J.ORCID iD for Kanwar, J. orcid.org/0000-0003-3728-9568
Baratchi, S.
Kalantar-zadeh, K.
Mitchell, A.
Conference name Biomedical Applications of Micro- and Nanoengineering IV and Complex Systems. Conference (9th : 2008 : Melbourne, Victoria)
Conference location Melbourne, Victoria
Conference dates 10-12 Dec. 2008
Title of proceedings SPIE 2008 : Progress in biomedical optics and imaging : Proceedings of SPIE Biomedical Applications of Micro- and Nanoengineering IV and Complex Systems conference
Publication date 2008
Series Proceedings of SPIE ; vol. 2720
Start page 1
End page 11
Total pages 11
Publisher SPIE : The International Society for Optical Engineering
Place of publication Bellingham, Wash.
Keyword(s) micromixer
microfluidics
lab-on-a-chip
serpentine
CFD
microfabrication
Summary This paper describes the design, simulation, fabrication and experimental analysis of a passive micromixer for the mixing of biological solvents. The mixer consists of a T-junction, followed by a serpentine microchannel. the serpentine has three arcs, each equipped with circular barriers that are patterned as two opposing triangles. >The barriers are engineered to induce periodic perturbations in the flow field and enhance the mixing. CFD (Computational Fluid Dynamics) method is applied to optimise the geometric variables of the mixer before fabrication. The mixer is made from PDMS (Polydimethylsiloxane) using photo- and soft-lithography techniques. Experimental measurements are performed using yellow and blue food dyes as the mixing fluids. The mixing is measured by analysing the composition of the flow's colour across the outlet channel. The performance of the mixer is examined in a wide range of flow rates from 0.5 to 10 µl/min. Mixing efficiencies of higher than 99.4% are obtained in the experiments confirming the results of numerical simulations. The proposed mixer can be employed as a part of lab-on-a-chip for biomedical applications.
ISSN 1605-7422
Language eng
DOI 10.1117/12.810678
Field of Research 091306 Microelectromechanical Systems (MEMS)
Socio Economic Objective 861503 Scientific Instruments
HERDC Research category E2.1 Full written paper - non-refereed / Abstract reviewed
HERDC collection year 2008
Copyright notice ©2008, SPIE
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30029327

Document type: Conference Paper
Collections: Centre for Intelligent Systems Research
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.