Patent · US Expired

Electrode arrangement for generating functional field barriers in microsystems

US7070684B1 · kind B1 · utility

10Cited by

13References

10Claims

0Family size

Assignee

Evotec Technologies GmbH · DE

Inventors

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

Key dates

Filing date	Jun 28, 1999
Grant date	Jul 4, 2006
Priority date	—
Expiry date	Jun 28, 2019

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01L2400/0415
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A microsystem adapted for dielectrophoretic manipulation of particles in a suspension liquid wherein the microsystem has a channel with channel walls and a longitudinal extension. An electrode arrangement is present which has at least one microelectrode on at least one of the channel walls. This acts to generate a field barrier which crosses the channel at least partly. The microelectrode has a band-shape or has a multitude of straight electrode sections connected to each other. The band-shape has a predetermined curvature or the straight electrode sections are arranged with predetermined different angles so that the field barrier has a predetermined curvature relative to the longitudinal extension of the channel.

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