Semiconductor based analyte sensors and methods
AssigneeAscenia Diabetes Care Holdings AG
InventorsMu Wu, Jiangfeng Fei, Serban Peteu, Hoi-Cheong Steve Sun, Raeann Gifford
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Abstract
An analyte sensor is provided that comprises a substrate which includes a semiconductor material. Embodiments may include a core of a conductive material, and a cladding of a semiconductor material, in which the cladding may form at least a portion of a conducting path for a working electrode of the analyte sensor. Method of manufacturing and using the analyte sensor are described, as are numerous other aspects.
Claims19
An analyte sensor, comprising:
- a substrate including:
- a care comprised of conductive material;
- a cladding comprised of semiconductor material and disposed around the core, wherein the cladding has a tensile strength of at least 1000 MPa;
- a working electrode formed from a portion of the cladding, the working electrode being at least partially coated with an electrochemically-active layer formed from at least one of a noble metal, carbon nanotubes, and a conductive polymer;
- and
- an active region positioned on the substrate and adapted to be exposed to a fluid environment, the active region including an agent on the electrochemically-active layer on the working electrode.
An analyte sensor, comprising:
- a substrate including semiconductor material surrounding a conductive core, a first portion of the semiconductor material forming a working electrode;
- a second portion of the semiconductor material partially coated with an electrochemically-active layer formed from at least one of a noble metal, carbon nanotubes, and a conductive polymer;
- and an active region positioned on the substrate and adapted to be exposed to a fluid environment, the active region including an agent on the electrochemically-active layer adapted to convert an analyte within the fluid environment into a product from which an electrical current may be generated.
A method of manufacturing an analyte sensor, comprising:
- providing a substrate including semiconductor material surrounding a conductive core, a portion of the semiconductor material forming a working electrode;
- and
- applying an electrochemically-active layer formed from at least one of a noble metal, carbon nanotubes, and a conductive polymer on top of the semiconductor material, the electrochemically-active layer adapted to convert an analyte within a fluid environment into a product from which an electrical current may be generated.
A method of using an analyte sensor, comprising:
- providing an analyte sensor having a substrate including semiconductor material surrounding a conductive core, a first portion of the semiconductor material forming a working electrode, a second portion of the semiconductor material partially coated with an electrochemically-active layer formed from at least one of a noble metal, carbon nanotubes, and a conductive polymer, and an active region positioned on the substrate and adapted to be exposed to a fluid environment, the active region including an agent on the electrochemically-active layer;
- and
- inserting at least a portion of the analyte sensor into a user's body.
Dependencies are inferred from the claim text.