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Axisymmetric polydimethysiloxane microchannels for in vitro hemodynamic studies

Lima, Rui and Oliveira, Monica and Ishikawa, T. and Kaji, H. and Tanaka, S. and Nishizawa, M. and Yamaguchi, T. (2009) Axisymmetric polydimethysiloxane microchannels for in vitro hemodynamic studies. Biofabrication, 1 (3). ISSN 1758-5082

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Abstract

The current microdevices used for biomedical research are often manufactured using microelectromechanical systems (MEMS) technology. Although it is possible to fabricate precise and reproducible rectangular microchannels using soft lithography techniques, this kind of geometry may not reflect the actual physiology of the microcirculation. Here, we present a simple method to fabricate circular polydimethysiloxane (PDMS) microchannels aiming to mimic an in vivo microvascular environment and suitable for state-of-the-art microscale flow visualization techniques, such as confocal µPIV/PTV. By using a confocal µPTV system individual red blood cells (RBCs) were successfully tracked trough a 75 µm circular PDMS microchannel. The results show that RBC lateral dispersion increases with the volume fraction of RBCs in the solution, i.e. with the hematocrit.

Item type: Article
ID code: 41374
Keywords: microchannels, polydimethysiloxane (PDMS) , flow visualisation, Mechanical engineering and machinery, Mechanical Engineering, Biomedical Engineering, Industrial and Manufacturing Engineering, Fluid Flow and Transfer Processes, Computational Mechanics, Computer Vision and Pattern Recognition
Subjects: Technology > Mechanical engineering and machinery
Department: Faculty of Engineering > Mechanical and Aerospace Engineering
Depositing user: Pure Administrator
Date Deposited: 11 Oct 2012 10:59
Last modified: 18 Jun 2015 08:40
URI: http://strathprints.strath.ac.uk/id/eprint/41374

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