Carbon working electrode for a continuous biological sensor
AssigneeZense-Life Inc.
InventorRobert James Boock
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Abstract
Briefly, a carbon working electrode is described that has a plastic substrate of polyethylene, polypropylene, polystyrene, polyvinyl chloride, or polylactic acid, and may be formed into an elongated wire. The carbon material coats the plastic substrate, and may be, for example, graphene, diamagnetic graphite, pyrolytic graphite, pyrolytic carbon, carbon black, carbon paste, or carbon ink, which is aqueously dispersed in an elastomeric material such as polyurethane, silicone, acrylates or acrylics. Optionally, selected additives may be added to the carbon compound prior to it being layered onto the plastic substrate. These additives may, for example, improve electrical conductivity or sensitivity, or act as a catalyst for target analyte molecules.
Claims18
A method of making a working electrode for a continuous biological monitor, comprising:
- providing a plastic substrate;
- preparing a carbon compound that is an aqueous solution of a carbon material and an elastomeric material;
- applying the carbon compound to the plastic substrate;
- curing the carbon compound to form a cured carbon compound;
- and
- adding an enzyme layer over the cured carbon compound;
- wherein the carbon material contains at least two materials selected from a group consisting of carbon black, graphene, pyrolytic carbon, pyrolytic graphite, and diamagnetic graphite.
Dependencies are inferred from the claim text.