To stick or not to stick... that is the question.


Patrick Tabeling's group in collaboration with his former post-doc, Cesare Cejas, has recently published an article underlying the mechanisms required for particles to adhere (or not adhere) onto surface walls when traveling inside a micro channel.

The physics is particularly rich and the paper, using microfluidics experiments, numerical simulations, and theory demonstrates the various factors at play controlling particle trajectories: hydrodynamic forces, adhesion (van der Waals), diffusion, electrostatic forces, etc.

The roles of these phenomena with respect to one another are summarized in a universal diagram of particle deposition.

For more information, check out the paper published in Physical Review E

C.M. Cejas, F. Monti, M. Truchet, J.-P. Burnouf, P. Tabeling. (2018). "Universal diagram for the kinetics of particle deposition in micro channels." Physical Review E. 98. 062606.

https://journals.aps.org/pre/abstract/10.1103/PhysRevE.98.062606


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