SYSTEMS, DEVICES AND METHODS FOR A HYDROSCOPIC BASED LATERAL FLOW ASSAY
First Claim
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1. A device for detecting an analyte in a fluid sample, the device comprising:
- a strip comprising;
a sample receiving region configured to receive the fluid sample;
a capture region; and
a non-capture region;
wherein the strip is configured such that when a fluid sample is applied to the sample receiving region, the fluid sample flows laterally to the capture region and the non-capture region;
a plurality of electrodes at least partially aligned with the capture region;
a plurality of electrodes at least partially aligned with the non-capture region; and
an electronic circuit comprising a processor coupled to the electrodes, the processor configured to execute a set of instructions to perform a method for detecting the analyte in the fluid sample, the method comprising;
measuring a drying-dependent impedance difference between the capture region and the non-capture region.
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Abstract
Systems, methods, and test kits for detecting and quantifying an analyte level in a biological fluid sample using impedance measurements, are disclosed. The fluid sample is applied to a lateral flow strip, and impedance of the strip is measured as the assay dries. Analysis of the drying-dependent impedance measurements indicates the presence and quantity of the analyte in the fluid sample.
4 Citations
21 Claims
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1. A device for detecting an analyte in a fluid sample, the device comprising:
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a strip comprising; a sample receiving region configured to receive the fluid sample; a capture region; and a non-capture region; wherein the strip is configured such that when a fluid sample is applied to the sample receiving region, the fluid sample flows laterally to the capture region and the non-capture region; a plurality of electrodes at least partially aligned with the capture region; a plurality of electrodes at least partially aligned with the non-capture region; and an electronic circuit comprising a processor coupled to the electrodes, the processor configured to execute a set of instructions to perform a method for detecting the analyte in the fluid sample, the method comprising; measuring a drying-dependent impedance difference between the capture region and the non-capture region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for detecting an analyte in a fluid sample, the method comprising:
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applying a fluid sample to a strip, wherein the strip is configured such that the fluid sample flows laterally to a capture region and a non-capture region of the strip; and measuring a drying-dependent impedance difference between the capture region and the non-capture region. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification