Optochemical sensor and method for production

US5611998A · kind A · utility

Assignee

• AVL Medical Instruments · CH

Inventors

• Franz Aussenegg · Graz, AT
• Harald Brunner · Ingolstadt, DE
• Alfred Leitner · Graz, AT
• Fritz Pittner · Wien, AT
• Thomas Schalkhammer · Bischofshofen, AT

Key dates

• Filing date: Apr 10, 1995
• Grant date: Mar 18, 1997
• Expiry date: Apr 10, 2015

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2021/7779
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An optochemical sensor for measuring concentrations of analytes is provided with a reactive matrix preferably made of polymeric material capable of swelling. Further provided are a mirror layer and a layer of a plurality of discrete islands that are electrically conductive, between which layers the reactive matrix is positioned, the diameter of the islands being smaller than the wavelength of the light employed for monitoring and evaluation.