Electrochemical sensor ink compositions, electrodes, and uses thereof
First Claim
1. An ink composition comprising:
- about 0.003% to about 1.6% by weight of a transition metal catalyst;
an electrically conductive material;
a polymer binder blend comprising a first polymer and a second polymer, wherein the first polymer and the second polymer are selected from the group consisting of;
acrylic homopolymers, acrylic copolymers, and acrylic terpolymers, wherein the glass transition temperature of said first polymer is higher than the glass transition temperature of said second polymer, the first polymer, and the second polymer having different molecular weights; and
one or more solvents.
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Accused Products
Abstract
The invention is directed to conductive polymer compositions, catalytic ink compositions (e.g., for use in screen-printing), electrodes produced by deposition of an ink composition, as well as methods of making, and methods of using such compositions and electrodes. An exemplary ink material comprises a metal catalyst (e.g., platinum black and/or platinum-on-carbon), graphite as a conducting material, a polymer binding material, and an organic solvent. In one aspect, the polymer binding material comprises a polymer binder blend comprising first and second polymers, wherein the first polymer has a glass transition temperature higher than the second polymer. In a second aspect, the polymer binding material comprises a hydrophilic acrylic polymer, copolymer, or terpolymer. The conductive polymer compositions of the present invention may be used, for example, to make electrochemical sensors. Such sensors may be used, for example, in a variety of devices to monitor analyte amount or concentrations in subjects.
66 Citations
30 Claims
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1. An ink composition comprising:
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about 0.003% to about 1.6% by weight of a transition metal catalyst;
an electrically conductive material;
a polymer binder blend comprising a first polymer and a second polymer, wherein the first polymer and the second polymer are selected from the group consisting of;
acrylic homopolymers, acrylic copolymers, and acrylic terpolymers, wherein the glass transition temperature of said first polymer is higher than the glass transition temperature of said second polymer, the first polymer, and the second polymer having different molecular weights; and
one or more solvents. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An ink composition comprising:
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about 0.003% to about 1.6% by weight of a transition metal catalyst;
an electrically conductive material;
a polymer binder blend comprising a first polymer mixture and a second polymer, wherein the first polymer mixture is a mixture of acrylic homopolymers having different glass transition temperatures and different molecular weights and the second polymer is selected from the group consisting of acrylic copolymers and acrylic terpolymers; and
one or more solvents. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. An ink composition comprising:
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about 0.003% to about 1.6% by weight of a transition metal catalyst;
an electrically conductive material;
a polymer binder comprising acrylic copolymers or acrylic terpolymer prepared by polymerizing monomers selected from the group consisting of;
alkyl acrylates, alkyl methacrylates, hydroxyl-alkyl acrylates, hydroxyl-alkyl methacrylates, acrylic acid, methacrylic acid, carboxyl alkyl acrylates, carboxylmethacrylates, amino alkylate acrylate, amino alkyl methacrylate, vinylamine acrylate and vinyl amine alkyl acrylate; and
one or more solvents. - View Dependent Claims (30)
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Specification