Optical sensor for sensing multiple analytes
First Claim
1. A device for analyzing multiple analytes simultaneously in a fluid, comprising:
- (a) a plurality of sensors each for exposing to a sample of the fluid, the plurality of sensors comprising;
groups of sensors, each group targeting a specific analyte, each group including one or more sensors including an analyte-specific chemical that interacts more specifically with one analyte than with some other analytes to be analyzed;
(b) light source for providing light to shine on the sensors of said plurality of sensors to cause light interaction with said sensors, wherein the differences in the sensors lead to differences in said light interaction;
(c) detectors for determining the light interaction by the sensors; and
(d) processor for analyzing the light interaction by the sensors to take into account interference in light interaction among the analytes, thereby determining the concentration of each of the analytes in the fluid.
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Accused Products
Abstract
A device for analyzing simultaneously multiple analytes in a fluid of unknown composition. The device includes a plurality of sensors, a light source for providing light to shine on the sensors, light detectors, and a processor. The sensors are exposed to a sample of the fluid of unknown composition. The plurality of sensors includes groups of sensors, each group targeting a specific analyte and including one or more sensors that contain an analyte-specific chemical that interacts more specifically with one analyte than with some other analytes to be analyzed. Each sensor in each group has a different chemical interacting with the analyte to target it. The light source shines light on the sensors of the plurality of sensors to cause light interaction with the sensors. The differences in the sensors lead to differences in the light interaction. The light detectors detects the light interaction by the sensors. The processor analyzes the light interaction by the sensors to take into account interference in light interaction among the analytes, thereby determining the concentration of each of the analytes in the fluid.
382 Citations
24 Claims
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1. A device for analyzing multiple analytes simultaneously in a fluid, comprising:
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(a) a plurality of sensors each for exposing to a sample of the fluid, the plurality of sensors comprising;
groups of sensors, each group targeting a specific analyte, each group including one or more sensors including an analyte-specific chemical that interacts more specifically with one analyte than with some other analytes to be analyzed;
(b) light source for providing light to shine on the sensors of said plurality of sensors to cause light interaction with said sensors, wherein the differences in the sensors lead to differences in said light interaction;
(c) detectors for determining the light interaction by the sensors; and
(d) processor for analyzing the light interaction by the sensors to take into account interference in light interaction among the analytes, thereby determining the concentration of each of the analytes in the fluid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A device for analyzing simultaneously multiple analytes in a fluid, comprising:
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(a) a plurality of sensors each for exposing to a sample of the fluid, the plurality of sensors comprising;
groups of sensors, each group having one or more sensors each having an analyte-specific chemical that interacts more specifically with one analyte than with some other analytes to be analyzed, wherein at least half of the sensors for sensing analytes other than hydrogen ions or oxygen include a pH sensor or an oxygen sensor;
(b) light source for providing light to shine on the sensors of said plurality of sensors to cause light interaction with said sensors, wherein the differences in the sensors lead to differences in said light interaction, wherein at least some of the sensors specific for different analytes receive light of the same frequency profile;
(c) detectors for determining the light interaction by the sensors; and
(d) processor for analyzing the light interaction by the sensors to take into account interference in light interaction among the analytes using a matrix algorithm, thereby determining the concentration of each of the analytes in the fluid.
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14. A method for analyzing simultaneously multiple analytes in a fluid, comprising:
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(a) exposing a plurality of sensors each to a sample of the fluid, the plurality of sensors having groups of sensors, each group having one or more sensors each including an analyte-specific chemical that interacts more specifically with one analyte than with some other analytes to be analyzed; and
(b) shining light on the sensors of said plurality of sensors to cause light interaction with said sensors, wherein the differences in the sensors lead to differences in said light interaction;
(c) detecting the light interaction by the sensors;
(d) mathematically analyzing the light interaction by the sensors to take into account interference in light interaction among the analytes, thereby determining the concentration of each of the analytes in the fluid. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An method of making a device for analyzing simultaneously multiple analytes in a fluid, comprising:
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(a) making a plurality of sensors each for exposing to a sample of the fluid, the step of making the plurality of sensors comprising making groups of sensors wherein each group having one or more sensors including an analyte-specific chemical that interacts more specifically with one analyte than with some other analytes to be analyzed;
(b) positioning a light source for providing light to shine on the sensors of said plurality of sensors to cause light interaction with said sensors, wherein the differences in the sensors lead to differences in said light interaction;
(c) positioning detectors for determining the light interaction by the sensors; and
(d) electrically connecting the detectors to a processor for analyzing the light interaction by the sensors to take into account interference in light interaction among the analytes, thereby determining the concentration of each of the analytes in the fluid.
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Specification