Device for measurement of exhaled nitric oxide concentration
AssigneeAndas Inc.
InventorsTimothy Clay Anglin, Jr., Timothy D. Bemer, Joseph C. Jensen
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Abstract
Described is a personal device and methods for measuring the concentration of an analyte in a sample of gas. The device and method may utilize a chemically selective sensor element with low power consumption integrated with circuitry that enables wireless communication between the sensor and any suitable electronic readout such as a smartphone, tablet, or computer. In preferred form, the sensor circuitry relies upon the quantum capacitance effect of graphene as a transduction mechanism. Also in preferred form, the device and method employ the functionalization of the graphene-based sensor to determine the concentration of nitric oxide in exhaled breath.
Claims24
A device for detecting an analyte in a sample, comprising:
- one or more analyte sensors, at least one analyte sensor having a graphene-based variable capacitor,
- wherein at least one graphene-based variable capacitor comprises:
- a dielectric layer;
- a graphene layer which is substantially supported by the dielectric layer;
- and
- a modifying layer in contact with the graphene layer;
- and
- a sensor signal processor, programmed to receive data from the at least one analyte sensor having a graphene-based variable capacitor and to determine the concentration of nitric oxide in the sample.
Dependencies are inferred from the claim text.