Ubiquitous gravity can be used for sorting micro particles in microfluidic devices. When gravity acts perpendicular to the motion of the particles, the particles settle down at a velocity dependent on their radius. Additionally, the motion of the particles is influenced by the hydrodynamic effects originating from the difference between the density of the particles, the density of the fluid and the viscosity of the fluid.
Read the Microfluidics Particle Sorting Using Hydrodynamics blog.
Read the Microfluidics Particle Sorting Using Gravity blog.