Multiplexed droplet actuation and sensing in digital microfluidics
US10960398B2 · kind B2 · utility
3Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2017 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Nov 28, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/1027
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure discloses a multi-droplet sensing and actuation system, for use in a digital microfluidic chip operation wherein a linearly independent alternating current signal is applied to each discrete actuation electrode thus encoding the electrode's identity. The combined measured impedance signal from multiple channels is then processed to decode an impedance measurement for the volume between each discrete actuation electrode and its corresponding conductive counter electrode region, where the sensed impedance is inversely proportional to an amount of liquid within the volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.