Test element with a one layer reaction film

US7629175B2 · kind B2 · utility

Assignee

• Roche Diagnostics Operations, Inc. · US

Inventors

• Wolfgang-Reinhold Knappe · Ludwigshafen, DE
• Franz Wittmann · Hockenheim, DE
• Dan Mosoiu · Schifferstadt, DE
• Carina Horn · Biblis, DE
• Joachim Hoenes · Zwingenberg, DE

Key dates

• Filing date: Feb 18, 2005
• Grant date: Dec 8, 2009
• Expiry date: Feb 5, 2027

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T436/144444
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention concerns test elements and methods for the optical detection of an analyte in a sample. The test element includes a support having at least one transparent portion, and a one-layer film positioned on the support. The film has a thickness when dry of less than about 10 μm. The method includes contacting the sample with the test element and determining the analyte concentration in the sample.