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 . Recently modeling of displacement of such particles has seen new developments like the calculation of the trajectory of a particle , or the calculation of the concentration of a great number of such particles, at the same time, in a magnetic and hydrodynamic fields . 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) : 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.