Biosensor, biosensor chip and biosensor device
First Claim
Patent Images
1. A biosensor device, comprising:
- a biosensor, comprising;
a working electrode;
a counter electrode;
a working electrode terminal;
a counter electrode terminal;
a reference terminal;
a first line connecting the working electrode to the working electrode terminal;
a second line connecting the working electrode to the reference terminal; and
a third line connecting the counter electrode to the counter electrode terminal; and
a measurement circuit connected to the biosensor for performing an assay of a fluid to determine the concentration of a substance in the fluid,wherein at least one of the first line, the second line, and the third line is made of gold, and substantially no current flows through the second line during the assay.
3 Assignments
0 Petitions
Accused Products
Abstract
A biosensor includes a working electrode 101, a counter electrode 102 opposing the working electrode 101, a working electrode terminal 103 and a working electrode reference terminal 10 connected to the working electrode 101 by wires, and a counter electrode terminal 104 connected to the counter electrode 102 by a wire. By employing a structure with at least three electrodes, it is possible to assay a target substance without being influenced by the line resistance on the working electrode side.
70 Citations
107 Claims
-
1. A biosensor device, comprising:
-
a biosensor, comprising; a working electrode; a counter electrode; a working electrode terminal; a counter electrode terminal; a reference terminal; a first line connecting the working electrode to the working electrode terminal; a second line connecting the working electrode to the reference terminal; and a third line connecting the counter electrode to the counter electrode terminal; and a measurement circuit connected to the biosensor for performing an assay of a fluid to determine the concentration of a substance in the fluid, wherein at least one of the first line, the second line, and the third line is made of gold, and substantially no current flows through the second line during the assay. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
-
-
36. A biosensor device, comprising:
-
a biosensor, comprising; a working electrode; a counter electrode; a working electrode terminal; a counter electrode terminal; a reference terminal; a first line connecting the working electrode to the working electrode terminal; a second line connecting the counter electrode to the reference terminal; and a third line connecting the counter electrode to the counter electrode terminal; and a measurement circuit connected to the biosensor for performing an assay of a fluid to determine the concentration of a substance in the fluid, wherein at least one of the first line, the second line, and the third line is made of gold, and substantially no current flows through the second line during the assay. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70)
-
-
71. A biosensor device, comprising:
-
a biosensor, comprising; a working electrode; a counter electrode; a working electrode terminal; a counter electrode terminal; a first reference terminal; a second reference terminal; a first line connecting the working electrode to the working electrode terminal; a second line connecting the working electrode to the first reference terminal; a third line connecting the counter electrode to the counter electrode terminal; and a fourth line connecting the counter electrode to the second reference terminal; and a measurement circuit connected to the biosensor for performing an assay of a fluid to determine the concentration of a substance in the fluid, wherein at least one of the first line, the second line, the third line, and the fourth line is made of gold;
substantially no current flows through the second line during the assay; and
substantially no current flows through the fourth line during the assay. - View Dependent Claims (72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107)
-
Specification