MULTIPLE LAYER GEL
First Claim
1. An oxidation-reduction potential test device, comprising:
- a substrate;
a spacer layer interconnected to at least a portion of the substrate, wherein the spacer layer defines a sample chamber;
a test strip overlay, wherein the test strip overlay is interconnected to at least a portion of the spacer layer;
a first test lead supported by the substrate, the first test lead including;
a first area extending into the sample chamber;
a second area extending from the sample chamber to a readout region;
a second test lead supported by the substrate, the second test lead including;
a first area extending into the sample chamber;
a second area extending from the sample chamber to a readout region;
a reference cell;
a reference lead, including;
a first area in electrical contact with the reference cell;
a second area extending from the reference cell to a readout region;
a filter, wherein at least a portion of the filter overlaps at least a portion of each of the first area of the first test lead, the first area of the second test lead, and the first area of the reference lead; and
a gel volume, wherein the gel volume includes a first layer in contact with the reference cell and a second layer over the first layer, and wherein the first layer differs in composition from the second layer.
3 Assignments
0 Petitions
Accused Products
Abstract
A multiple layer gel and method for forming a multiple layer gel are provided. The multiple layer gel includes an isolation layer and an electrolyte layer. The isolation layer provides a molecular weight screen, to prevent proteins or other molecules from contacting a reference cell covered by the isolation layer. The electrolyte layer covers the isolation layer, and provides a source of ions that place the reference cell in ionic and/or electrical contact with a fluid sample. The multiple layer gel can be used to maintain a reliable reference voltage from an associated reference cell while an electrical potential or other electrical characteristic of a sample fluid is being determined.
2 Citations
20 Claims
-
1. An oxidation-reduction potential test device, comprising:
-
a substrate; a spacer layer interconnected to at least a portion of the substrate, wherein the spacer layer defines a sample chamber; a test strip overlay, wherein the test strip overlay is interconnected to at least a portion of the spacer layer; a first test lead supported by the substrate, the first test lead including; a first area extending into the sample chamber; a second area extending from the sample chamber to a readout region; a second test lead supported by the substrate, the second test lead including; a first area extending into the sample chamber; a second area extending from the sample chamber to a readout region; a reference cell; a reference lead, including; a first area in electrical contact with the reference cell; a second area extending from the reference cell to a readout region; a filter, wherein at least a portion of the filter overlaps at least a portion of each of the first area of the first test lead, the first area of the second test lead, and the first area of the reference lead; and a gel volume, wherein the gel volume includes a first layer in contact with the reference cell and a second layer over the first layer, and wherein the first layer differs in composition from the second layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A method for forming a multiple layer gel, comprising:
-
providing a test strip substrate that includes a plurality of test leads and a reference cell; applying an isolation layer over the reference cell; and applying an electrolyte layer over the isolation layer. - View Dependent Claims (16, 17, 18, 19)
-
-
20. A multiple layer gel, comprising:
-
an isolation layer, wherein the isolation layer is a molecular weight screening layer; an electrolyte layer, wherein the electrolyte layer is a source of ions.
-
Specification