Abstract: According to one embodiment of the present disclosure, devices, systems, and methods for separating irregular particles by size. A fluidic device for zooplankton separation includes at least one inlet and a curvilinear channel having multiple sub-outlet divisions arranged along a fluidic path of the fluidic device. The multiple sub-outlet divisions include at least two first sub-outlets and at least four second sub-outlets. The least two second sub-outlets extend from each of the at least two first sub-outlets. A method of separating zooplankton includes introducing a mixture including irregular particles into at least one inlet of a micro-fluidic device. The method further includes guiding the mixture including the irregular particles through a curvilinear microchannel of the device. The method includes separating larger and smaller particles based on inertial forces between two first sub-outlets and separating larger and smaller particles from a pre-separated fluid between two second sub-outlets.

Abstract: A form of crossflow filtration particle separator which receives a particle laden moving fluid surrounded by a clear moving fluid at a proximal end, and separates the particles into a collection zone, or collector, in response to vortices created by diagonal slits and baffles located from the center of the particle separator to its distal end. The filter operates horizontally in a small amount of space without use of physical filter media or the need of a high pressure flow, while allowing delicate particles to be separated without damage. Particle collection structures allow the separated particles to be carried away in a separate flow.

Abstract: A form of crossflow filtration particle separator which receives a particle laden moving fluid surrounded by a clear moving fluid at a proximal end, and separates the particles into a collection zone, or collector, in response to vortices created by diagonal slits and baffles located from the center of the particle separator to its distal end. The filter operates horizontally in a small amount of space without use of physical filter media or the need of a high pressure flow, while allowing delicate particles to be separated without damage. Particle collection structures allow the separated particles to be carried away in a separate flow.