EP0206218A2
Expired / Lapsed
EP
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Electrode for electrochemical sensors
Assignee: Bayer Corp
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Filing: 1986-06-16
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Granted: —
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Expires: 2006-06-16
Abstract
Abstract A disposable, inexpensive electrode for an electrochemical sensor includes a laminated anode and a laminated cathode. The anode is a film substrate with anodic material such as platinum deposited on the substrate. The cathode is also a film substrate with cathodic material such as silver deposited on the substrate. The anode and cathode can be laminated with an intermediate layer of dielectric material. A working surface is provided on the electrode and defined, in part, by the anode and cathode. One procedure for defining the working surface is to fabricate spaced openings in the cathode film and the layer of dielectric material. The openings in the cathode film and dielectrical layer are aligned and the exposed surfaces of the anode and cathode define the working area. An enzyme, such as glucose oxidase, is bonded to the exposed anode and a membrane is applied over the working area and enzyme. The membrane is preferably a silicone water-based elastomer. The laminated anode, cathode and dielectric layer are then severed to form individual electrodes each including a working area.
Inventors
- 👤 Frank W. Wogoman
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 19:46
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/001; C12Q1/002; C12Q1/005; C12Q1/006; G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/327; G01N27/3271; G01N27/3272; Y; Y10; Y10S; Y10S435/00; Y10S435/817
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
55 words
1 An electrode, comprising: a cathode defined by a first electrically conductive layer including first and second surfaces; a first layer of dielectric material on said first surface of said cathode; and an anode defined by a second electrically conductive layer; said anode secured to said first layer of said dielectric material adjacent said cathode.
Claim 2
Dependent Claim
55 words
1 An electrode, comprising: a cathode defined by a first electrically conductive layer including first and second surfaces; a first layer of dielectric material on said first surface of said cathode; and an anode defined by a second electrically conductive layer; said anode secured to said first layer of said dielectric material adjacent said cathode.
Claim 3
Dependent Claim
26 words
The electrode set forth in claim 1 wherein said anode and said cathode define a working area, a glucose permeable membrane bonded to said working area.
Claim 4
Dependent Claim
14 words
The electrode claimed in claim 2 wherein said membrane is a silicone water-based elastomer.
Claim 5
Dependent Claim
43 words
An electrode for an electrochemical sensor, comprising: a first lamination defining an anode, a second lamination defining a cathode, access means for accessing said anode and said cathode to define an electrode working area, and a membrane integrally bonded to said working area.
Claim 6
Dependent Claim
43 words
An electrode for an electrochemical sensor, comprising: a first lamination defining an anode, a second lamination defining a cathode, access means for accessing said anode and said cathode to define an electrode working area, and a membrane integrally bonded to said working area.
Claim 7
Dependent Claim
14 words
The electrode claimed in claim 4 wherein said membrane comprises a silicone water-based elastomer.
Claim 8
Dependent Claim
23 words
The electrode claimed in claim 4 further comprising an enzyme immobilized on at least a portion of said anode at said working area.
Claim 9
Dependent Claim
82 words
A disposable laminated electrode for an electrochemical sensor, comprising: an anode defined by a first layer of electroconductive material deposited on a first film, a cathode defined by a second layer of electroconductive material deposited on a second film, a dielectric layer positioned between said anode and said cathode, a working area defined by said anode and cathode, an enzyme bonded to at least said anode at said working area, and a membrane integrally bonded to said enzyme and said working area.
Claim 10
Dependent Claim
82 words
A disposable laminated electrode for an electrochemical sensor, comprising: an anode defined by a first layer of electroconductive material deposited on a first film, a cathode defined by a second layer of electroconductive material deposited on a second film, a dielectric layer positioned between said anode and said cathode, a working area defined by said anode and cathode, an enzyme bonded to at least said anode at said working area, and a membrane integrally bonded to said enzyme and said working area.
Claim 11
Dependent Claim
16 words
The laminated electrode set forth in claim 7 wherein said membrane is a silicone water-based elastomer.
Claim 12
Independent Claim
62 words
A method of fabricating a disposable electrode for an electrochemical sensor, comprising the steps of laminating a first sheet including a layer of cathodic material and a second sheet including a layer of anodic material; fabricating a working area including said anodic and cathodic material; and severing said first and second sheets to form individual electrodes, each electrode including a working area.
Claim 13
Independent Claim
62 words
A method of fabricating a disposable electrode for an electrochemical sensor, comprising the steps of laminating a first sheet including a layer of cathodic material and a second sheet including a layer of anodic material; fabricating a working area including said anodic and cathodic material; and severing said first and second sheets to form individual electrodes, each electrode including a working area.
Claim 14
Dependent Claim
32 words
The method of fabricating a disposable electrode as claimed in claim 9 further comprising the steps of applying a silicone water-based elastomer over said working area, and curing said silicone water-based elastomer.
References Cited (Backward Citations)
No citation records indexed.
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