Microfluidic transport in microdevices for rare cell capture
The isolation and capture of rare cells is a problem uniquely suited to microfluidic devices, in which geometries on the cellular length scale can be engineered and a wide range of chemical functionalizations can be implemented. The performance of such devices is primarily affected by the chemical i...
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Published in | Electrophoresis Vol. 33; no. 21; pp. 3133 - 3142 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Germany
Blackwell Publishing Ltd
01.11.2012
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Subjects | |
Online Access | Get full text |
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Summary: | The isolation and capture of rare cells is a problem uniquely suited to microfluidic devices, in which geometries on the cellular length scale can be engineered and a wide range of chemical functionalizations can be implemented. The performance of such devices is primarily affected by the chemical interaction between the cell and the capture surface and the mechanics of cell‐surface collision and adhesion. As rare cell‐capture technology has been summarized elsewhere (E. D. Pratt et al., Chem. Eng. Sci. 2011, 66, 1508–1522), this article focuses on the fundamental adhesion and transport mechanisms in rare cell‐capture microdevices, and explores modern device design strategies in a transport context. The biorheology and engineering parameters of cell adhesion are defined; adhesion models and reaction kinetics briefly reviewed. Transport at the microscale, including diffusion and steric interactions that result in cell motion across streamlines, is discussed. The review concludes by discussing design strategies with a focus on leveraging the underlying transport phenomena to maximize device performance. |
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Bibliography: | NSF Graduate Research Fellowship Program (ACB) Cornell Center on the Microenvironment & Metastasis - No. U54CA143876 istex:F852979FE263ACE6B8536884DBA9639B2F66CCCF ark:/67375/WNG-S6NDT40G-1 ArticleID:ELPS4398 See the article online to view Figs. 1, 3–6 in colour. Colour Online ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-3 content type line 23 ObjectType-Review-1 Present affiliation: Department of Chemical and Biological Engineering, Princeton University |
ISSN: | 0173-0835 1522-2683 |
DOI: | 10.1002/elps.201200263 |