Patent ID: 9395361
Filing Date: 2016-07-19
CPC Classification: B01F,B01L,B03C,C12N,G01N,Y10T

Claim Text:
1. A method comprising: (a) providing a droplet actuator comprising: (b) positioning a droplet having magnetically responsive beads therein within the first region of the magnetic field of the magnet to cause the beads to be attracted to the magnet, and activating the droplet operations surface in a manner to cause the droplet to take an elongate shape; (c) operating the droplet operations surface to activate one electrode at a time, to cause the droplet to move away from the magnet, and thereby cause the geometry of the droplet to be distorted; and (d) continuing to operate the droplet operations surface to transport the droplet further away from the magnet and inactivating an electrode intermediate to the droplet to cause the droplet to split into a supernatant droplet and a smaller droplet that has the magnetically responsive beads therein.