Patent ID: 6863800

Claim:
A biosensor strip for determining the concentration of an analyte in a sample of biological liquid, said biosensor strip comprising: (a) an electrode support having an electrode bearing major surface; (b) a cover layer having an electrode-bearing major surface; (c) a spacer layer interposed between said electrode support and said cover layer; (d) a first electrode, said first electrode being a working electrode, said working electrode comprising working ink comprising (i) a reagent responsive to said analyte in said sample of said biological liquid and (ii) an electron mediator deposited on an electrically conductive material; (e) a second electrode, said second electrode being a reference electrode, said reference electrode comprising (i) said reagent responsive to said analyte in said sample of said biological liquid and (ii) said electron mediator deposited on an electrically conductive material; and (f) a third electrode, said third electrode being a counter electrode, said counter electrode comprising an electrically conductive material, said electrode-bearing major surface of said first electrode support facing said electrode-bearing major surface of said cover layer.