Patent Number: 6,309,535

Title: Electrodes and their use in assays

Abstract: An electrode comprises a non-conductive substrate and a conductive layer comprising, in a bonded matrix, graphite particles coated with a noble metal, and carbon particles, wherein the graphite particles are up to 20 .mu.m is size and have a surface area of 1-50 m.sup.2 /g. This electrode is capable of measuring low levels of analyte, e.g. glucose in sweat when convined with a layer containing glucose oxidase.

Inventors: Williams; Stephen Charles (Half Moon Bay, CA), Yon-Hin; Bernadette (Cambridge, GB), Blair; Neil (Cambridge, GB)

Assignee: Cambridge Sensors Limited

International Classification: G01N 27/30 (20060101); G01N 027/26 ()

Expiration Date: 10/30/2018