Efficiency of size-dependent particle separation by pinched flow fractionation

Aparna Srivastav (1) , Thomas Podgorski (1) , Gwennou Coupier (1)

1 LIPhy - Laboratoire Interdisciplinaire de Physique [Saint Martin d’Hères]

Pinched flow fractionation is shown to be an efficient and selective way to quickly separate particles by size in a very polydisperse semi-concentrated suspension. In an effort to optimize the method, we discuss the quantitative influence of the pinching intensity in the balance between the requirements of selectivity and minimal dilution.

Domaines: Dynamique des Fluides [physics.flu-dyn]

Aparna Srivastav, Thomas Podgorski, Gwennou Coupier. Efficiency of size-dependent particle separation by pinched flow fractionation. Microfluidics and Nanofluidics, 2012, 13, pp.697. ⟨10.1007/s10404-012-0985-8⟩. ⟨hal-00807688⟩