Method and apparatus for separating particles by dielectrophoresis
US8778160B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2011 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Feb 24, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03C5/022
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Particle separation apparatus separate particles and particle populations using dielectrophoretic (DEP) forces generated by one or more pairs of electrically coupled electrodes separated by a gap. Particles suspended in a fluid are separated by DEP forces generated by the at least one electrode pair at the gap as they travel over a separation zone comprising the electrode pair. Selected particles are deflected relative to the flow of incoming particles by DEP forces that are affected by controlling applied potential, gap width, and the angle linear gaps with respect to fluid flow. The gap between an electrode pair may be a single, linear gap of constant gap, a single linear gap having variable width, or a be in the form of two or more linear gaps having constant or variable gap width having different angles with respect to one another and to the flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.