Optoelectronic rapid diagnostic test system
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Accused Products
Abstract
A rapid diagnostic test system or process uses a single-use module that includes a photodetector. The photodetector generates an electrical signal representing a measurement of light from a test region on a medium such as a lateral-flow strip for a binding assay. For light measurement, the test medium can contain a labeling substance that attaches a persistent fluorescent structure such as a quantum dot to a target analyte, so that the photodetector measures fluorescent light. Multiple photodetectors and an optical system that separates or filters light of wavelengths corresponding to different fluorescent labeling substances allow simultaneous testing for multiple analytes. The single-use module can include a display or LED for visual indication of test results, or the electrical signal can be output for processing in a reusable module.
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Citations
29 Claims
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1. (canceled)
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5. A rapid diagnostic test system comprising:
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a light source for illuminating a medium containing a sample under test, wherein the medium comprises a labeling substance that binds a persistent fluorescent structure to a target analyte, a first photodetector positioned to measure light from a test area of the medium;
a second photodetector; and
an optical system positioned to receive light from the test area, wherein the optical system separates light having a first frequency from light having a second frequency so that the first photodetector measures light having the first frequency and the second photodetector measures light having the second frequency. - View Dependent Claims (2, 3, 4, 6, 7, 8, 9, 27, 28, 29)
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10. A rapid diagnostic test system comprising:
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a light source for illuminating a medium containing a sample under test, wherein the medium comprises a labeling substance that binds a persistent fluorescent structure to a target analyte;
a photodetector positioned to measure light from a test area of the medium, wherein the first photodetector and the medium are contained in a single-use module. - View Dependent Claims (11, 12, 21, 22, 23, 24, 25, 26)
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13-20. -20. (canceled)
Specification