Droplet preparation and size control device based on electrowetting step emulsification
US10518231B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2017 |
| Grant date | Dec 31, 2019 |
| Priority date | — |
| Expiry date | Sep 28, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F2101/2204
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A droplet preparation and size control device based on electrowetting step emulsification is provided, including a syringe pump, a metal pipeline, a micro-channel, two electrode plates, a continuous phase container and a direct-current power supply, wherein: the syringe pump, the metal pipeline and the micro-channel are successively connected; an outlet of the micro-channel is clamped and sealed between the two electrode plates; each electrode plate consists of four layers, respectively a base layer, a conducting layer, an insulating layer and a hydrophobic layer; a cathode of the direct-current power supply is connected with the metal pipeline, and an anode of the direct-current power supply is connected with the conducting layer of each electrode plate; the syringe pump is filled with dispersed phase fluid; continuous phase fluid is injected into the continuous phase container and immerses the electrode plates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.