Multi-directional sorting modes in deterministic lateral displacement devices

Details Multi-directional sorting modes in deterministic lateral displacement devices Multi-directional sorting modes in deterministic lateral displacement devices

2008-07-25

arxiv.org/abs/0807.4168v1

Physical Review E 78, 046304 (2008)

Physics

Fluid Dynamics

Scientific paper

10.1103/PhysRevE.78.046304

Deterministic lateral displacement (DLD) devices separate micrometer-scale particles in solution based on their size using a laminar microfluidic flow in an array of obstacles. We investigate array geometries with rational row-shift fractions in DLD devices by use of a simple model including both advection and diffusion. Our model predicts novel multi-directional sorting modes that could be experimentally tested in high-throughput DLD devices containing obstacles that are much smaller than the separation between obstacles.

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