A tunable cancer cell filter using magnetic beads: cellular and fluid dynamic simulations

Details A tunable cancer cell filter using magnetic beads: cellular and fluid dynamic simulations A tunable cancer cell filter using magnetic beads: cellular and fluid dynamic simulations

2011-10-05

arxiv.org/abs/1110.0995v1

Physics

Fluid Dynamics

Scientific paper

In the field of biomedicine magnetic beads are used for drug delivery and to treat hyperthermia. Here we propose to use self-organized bead structures to isolate circulating tumor cells using lab-on-chip technologies. Typically blood flows past microposts functionalized with antibodies for circulating tumor cells. Creating these microposts with interacting magnetic beads makes it possible to tune the geometry in size, position and shape. We develop a simulation tool that combines micromagnetics, discrete particle dynamics and fluid dynamics, in order to design micropost arrays made of interacting beads. For the simulation of blood flow we use the Lattice-Boltzmann method with immersed elastic blood cell models. Parallelization distributes large fluid and particle dynamic simulations over available resources to reduce overall calculation time.

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