Droplet actuation system and method
US7816121B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 15, 2006 |
| Grant date | Oct 19, 2010 |
| Priority date | — |
| Expiry date | Aug 2, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0318
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A droplet actuation system is provided including a droplet actuation device including a substrate that includes electrodes for conducting droplet operations; temperature control means for heating and/or cooling a region of the droplet actuation device and arranged such that a droplet can be transported on the electrodes to a region for heating; and a means for effecting a magnetic field in proximity to one or more of the electrodes sufficient to immobilize magnetically responsive beads in a droplet on the substrate during droplet operations. The system further includes a processor for controlling the electrodes and temperature control means, wherein the processor is programmed, and electrodes and magnetic field are arranged, to cause the electrodes to split a droplet including the magnetically responsive beads yielding a first daughter droplet which includes the magnetically responsive beads and a second daughter droplet without a substantial amount of the magnetically responsive beads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.