Global Patent Index - EP 1129345 A1

EP 1129345 A1 20010905 - PRACTICAL DEVICE FOR CONTROLLING ULTRASMALL VOLUME FLOW

Title (en)

PRACTICAL DEVICE FOR CONTROLLING ULTRASMALL VOLUME FLOW

Title (de)

PRAKTISCHE VORRICHTUNG ZUR DURCHFLUSS-KONTROLLE VON ULTRAKLEINEN FLÜSSIGKEITSVOLUMEN

Title (fr)

DISPOSITIF PRATIQUE PERMETTANT D'AGIR SUR UN FLUX DE VOLUME ULTRA-REDUIT

Publication

EP 1129345 A1 20010905 (EN)

Application

EP 99958906 A 19991110

Priority

  • US 9926724 W 19991110
  • US 10808698 P 19981112

Abstract (en)

[origin: WO0028315A1] A device for control of ultrasmall volume fluid flow used in the fields of electrophoretic separation, chemical analysis, and microchemical reactions has a substrate defining a capillary channel and integrated external electrodes to control electroosmotic flow. The channel geometry and integrated external electrode proximity reduce the voltage required for control of flow. Longitudinal electrodes provide electrophoretic separation of components. High dielectric material between the integrated external electrode and capillary reduces the voltage required for the control of flow. Real-time flow monitoring and capillary channel surface coating enhance the control of flow.

IPC 1-7

G01N 27/447

IPC 8 full level

G01N 1/10 (2006.01); B03C 5/00 (2006.01); G01N 27/447 (2006.01); G01N 37/00 (2006.01); G05D 7/06 (2006.01)

CPC (source: EP)

G01N 27/44752 (2013.01); G01N 27/44791 (2013.01)

Citation (search report)

See references of WO 0028315A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 0028315 A1 20000518; WO 0028315 B1 20000706; CA 2348864 A1 20000518; EP 1129345 A1 20010905; JP 2002529235 A 20020910

DOCDB simple family (application)

US 9926724 W 19991110; CA 2348864 A 19991110; EP 99958906 A 19991110; JP 2000581444 A 19991110