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Huang et al (2004) developed a microfluidic particle-separation device that relies upon asymmetric bifurcation of laminar flow around certain obstacles. This causes a particle to choose its path through the device deterministically, on the basis of the particle size. The randomizing effect of diffusion (see also Particle sorting in periodic array by Brownian motion), which is not critical to the device operation, can be minimized by setting a sufficiently high flow velocity. Microspheres of 0.8, 0.9, and 1.0 micrometers were sorted in 40 seconds, i.e. the device achieved a sorting resolution of the particle size of ~10 nanometers.
| CITATION: Jonasz M. 2006. Particle sorting in microfluidic array (www.tpdsci.com/Tpc/PtTpmMfAr.php). In: Top. Part. Disp. Sci. (www.tpdsci.com). |
HISTORY: Published: 13-Jan-2006 Modified: 03-Jul-2006 Peer-reviewed: PENDING |
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