Particle Separation: Anticipating Cutoff Diameters in Deterministic Lateral Displacement (DLD) Microfluidic Devices for an Optimized Particle Separation (Small 37/2017)

Microfluidic deterministic lateral displacement separates different-sized particles in slanted pillar arrays. Large particles are displaced by the pillars while smaller particles follow a zigzag trajectory. In article number 1701901, Vincent Agache and co-workers show that intermediate-sized particles display a different trajectory mode, consisting of successive zigzag and displacement areas. Both experimental results and models are proposed to limit the intermediary mode and optimize the sorting efficiency.