Nanotech 2001 Vol. 1
Nanotech 2001 Vol. 1
Technical Proceedings of the 2001 International Conference on Modeling and Simulation of Microsystems

Micro and Bio Fluidics Chapter 6

Numerical Modeling of Magnetic Field Flow Fractionation in Microchannels: A Two-fold Approach Using Particle Trajectories and Concentration

Authors: J. Berthier, P. Pham and P. Massé

Affilation: LETI, France

Pages: 202 - 205

Keywords: numerical modeling, magnetic field, flow fractionation, microchannels, particle trajectoris, concentration

Submicronic paramagnetic particles are currently used for biological applications like medical diagnostic [1]. Recently modeling of displacement of such particles has seen new developments like the calculation of the trajectory of a particle [2], or the calculation of the concentration of a great number of such particles, at the same time, in a magnetic and hydrodynamic fields [3]. It is shown here that the two approaches - determinist and statistical - are consistent when applied to the calculation of a Magnetic Field-Flow Fractionation channel (MFFF) [4]: both numerical models predict similar convective patterns and the same accumulation location on the channel wall. Moreover, the application to a MFFF shows that submicronic paramagnetic particles can be separated by such methods depending on their size and magnetic susceptibility.

ISBN: 0-9708275-0-4
Pages: 638