VIDEO - Speed bumps sort cells

Researchers at Johns Hopkins University have created a novel microfluidic device that uses the force of gravity to sort different types of cells based weight or size. The device functions by passing a variety of cells over a series of bumps, sort of like speed bumps on a road. As seen in the video, the bumps are on an angle, so as the cells travel across the bumps, heavier cells are deflected along a different path.