Method of defining an electrode area
First Claim
1. A method for defining an area of a layer on a porous substrate comprising compressing a volume of the substrate to produce a compressed region which defines, or which in combination with an edge of the substrate or of the layer defines, a boundary of the area and which substantially prevents the transport of material through or across its surface.
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Accused Products
Abstract
The present invention relates to a method for defining an area (4) of a layer on a porous substrate comprising compressing a volume of the substrate to produce a compressed region (8) which defines, or which in combination with an edge (7) of the substrate or of the layer defines, a boundary of the area and which substantially prevents the transport of material through or across its surface. The present invention also relates to an electrochemical sensing device comprising: a porous substrate; and an electrode (1) on one side of the substrate; wherein a region of the substrate is compressed to an extent which forms a barrier to migration of electrolyte within the substrate, the compressedregion defining, or in combination with an edge of the substrate or the electrode defining, a zone on the electrode of predetermined area.
82 Citations
40 Claims
- 1. A method for defining an area of a layer on a porous substrate comprising compressing a volume of the substrate to produce a compressed region which defines, or which in combination with an edge of the substrate or of the layer defines, a boundary of the area and which substantially prevents the transport of material through or across its surface.
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21. An electrochemical sensing device comprising:
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a porous substrate; and an electrode on one side of the substrate;
wherein a region of the substrate is compressed to an extent which forms a barrier to migration of electrolyte within the substrate, the compressed region defining, or in combination with an edge of the substrate or the electrode defining, a zone on the electrode of predetermined area. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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Specification