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Micromachines 2011, 2(3), 319-343; doi:10.3390/mi2030319
Article

Microfluidic Devices for Blood Fractionation

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Received: 11 May 2011; in revised form: 27 June 2011 / Accepted: 6 July 2011 / Published: 20 July 2011
(This article belongs to the Special Issue Biomedical Microdevices)
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Abstract: Blood, a complex biological fluid, comprises 45% cellular components suspended in protein rich plasma. These different hematologic components perform distinct functions in vivo and thus the ability to efficiently fractionate blood into its individual components has innumerable applications in both clinical diagnosis and biological research. Yet, processing blood is not trivial. In the past decade, a flurry of new microfluidic based technologies has emerged to address this compelling problem. Microfluidics is an attractive solution for this application leveraging its numerous advantages to process clinical blood samples. This paper reviews the various microfluidic approaches realized to successfully fractionate one or more blood components. Techniques to separate plasma from hematologic cellular components as well as isolating blood cells of interest including certain rare cells are discussed. Comparisons based on common separation metrics including efficiency (sensitivity), purity (selectivity), and throughput will be presented. Finally, we will provide insights into the challenges associated with blood-based separation systems towards realizing true point-of-care (POC) devices and provide future perspectives.
Keywords: blood separation; microfluidics; cell separation; enrichment; disease detection and diagnosis blood separation; microfluidics; cell separation; enrichment; disease detection and diagnosis
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Hou, H.W.; Bhagat, A.A.S.; Lee, W.C.; Huang, S.; Han, J.; Lim, C.T. Microfluidic Devices for Blood Fractionation. Micromachines 2011, 2, 319-343.

AMA Style

Hou HW, Bhagat AAS, Lee WC, Huang S, Han J, Lim CT. Microfluidic Devices for Blood Fractionation. Micromachines. 2011; 2(3):319-343.

Chicago/Turabian Style

Hou, Han Wei; Bhagat, Ali Asgar S.; Lee, Wong Cheng; Huang, Sha; Han, Jongyoon; Lim, Chwee Teck. 2011. "Microfluidic Devices for Blood Fractionation." Micromachines 2, no. 3: 319-343.


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