Patent · US Active

Methods and devices for separating particles in a liquid flow

US8262883B2 · kind B2 · utility

15Cited by

3References

30Claims

0Family size

Assignee

PerkinElmer Cellular Technologies Germany GmbH · DE

Inventors

Torsten Müller · Berlin, DE
Thomas Schnelle · Berlin, DE
Rolf Hagedorn · Berlin, DE

Key dates

Filing date	Mar 17, 2004
Grant date	Sep 11, 2012
Priority date	—
Expiry date	May 13, 2028

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB03C5/005
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Methods and devices for the separation of particles (20, 21, 22) in a compartment (30) of a fluidic microsystem (100) are described, in which the movement of a liquid (10) in which particles (20, 21, 22) are suspended with a predetermined direction of flow through the compartment (30), and the generation of a deflecting potential in which at least a part of the particles (20, 21, 22) is moved relative to the liquid in a direction of deflection are envisaged, whereby further at least one focusing potential is generated, so that at least a part of the particles is moved opposite to the direction of deflection relative to the liquid by dielectrophoresis under the effect of high-frequency electrical fields, and guiding of particles with different electrical, magnetic or geometric properties into different flow areas (11, 12) in the liquid takes place.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.