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US 2025/0146043 A1Published application
Sensor with porous wicking layer
OwnerPaul DASTOORinventor
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Abstract
The present invention relates to organic thin film sensors and the preparation and use thereof in sensing applications, and in particular in glucose sensing applications.
Claims20
An organic thin film transistor based sensor for detecting the presence of an analyte in a liquid sample, the sensor including:
- a porous wicking layer having a first surface and a second surface, wherein the first surface is configured to receive a liquid sample;
- an enzyme disposed on or within the porous layer, the enzyme for facilitating the generation of a charge carrier from an analyte;
- a polymer layer in contact with the second surface of the porous layer, and configured to be connected to an ohmic conductor for applying a gate voltage to the polymer layer, the polymer layer being conductive to the charge carrier;
- and
- an organic semiconducting layer configured to be connected to a source electrode and a drain electrode.
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A method of forming an organic thin film transistor based sensor for detecting the presence of an analyte in a liquid sample, the method including:
- providing a layered structure including at least an organic semiconducting layer configured to be connected to a source electrode and a drain electrode, and a polymer gating layer;
- and
- disposing a porous wicking layer on a surface of the polymer gating layer;
- wherein the porous wicking layer includes, or is treated to include an enzyme for facilitating the generation of a charge carrier from an analyte.
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Dependencies are inferred from the claim text.