Electropermanent magnet activated microfluidic droplet size modulation
US10385893B2 · kind B2 · utility
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Key dates
| Filing date | Sep 30, 2016 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | Apr 16, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L2400/043
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An active microfluidic droplet generation device includes a droplet generation junction joining at least one continuous phase channel for carrying a ferrofluid, and a dispersed phase channel for carrying a dispersed phase (e.g., aqueous) flow. A miniature electropermanent magnet (EPM) upstream from the junction generates a magnetic field to modulate a flow rate of a ferrofluid in the continuous phase channel so that dispersed phase droplets are generated with volumes actively controlled on-demand and under continuous flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.