Device and method for multiple analyte detection
First Claim
1. A method for analyzing a fluid sample, the method comprising:
- filling with the fluid sample a substrate comprising a sample-distribution network having (i) a sample inlet, (ii) two or more detection chambers, and (iii) a channel providing fluid connections between each of said two or more detection chambers and said inlet, wherein at least two of said two or more detection chambers each contains detection reagents comprising a different selected-sequence polynucleotide pre-loaded therein, and each selected-sequence polynucleotide is effective to selectively bind to a respective target polynucleotide, the filling comprising filling the fluid sample into the two or more detection chambers until all of the two or more detection chambers are filled with the fluid sample and the filling is stopped;
after all of the two or more detection chambers are filled with the fluid sample and the filling is stopped, then isolating the two or more detection chambers from one another such that the fluid sample is prevented from flowing from one of the detection chambers to another of the detection chambers;
reacting the fluid sample with the detection reagents in the two or more detection chambers;
producing detection signals in the two or more detection chambers; and
detecting the detection signals produced in the two or more detection chambers.
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Abstract
The invention is directed to a method and device for simultaneously testing a sample for the presence, absence, and/or amounts of one or more a plurality of selected analytes. The invention includes, in one aspect, a device for detecting or quantitating a plurality of different analytes in a liquid sample. The device includes a substrate which defines a sample-distribution network having (i) a sample inlet, (ii) one or more detection chambers, and (iii) channel means providing a dead-end fluid connection between each of the chambers and the inlet. Each chamber may include an analyte-specific reagent effective to react with a selected analyte that may be present in the sample, and detection means for detecting the signal. Also disclosed are methods utilizing the device.
77 Citations
19 Claims
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1. A method for analyzing a fluid sample, the method comprising:
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filling with the fluid sample a substrate comprising a sample-distribution network having (i) a sample inlet, (ii) two or more detection chambers, and (iii) a channel providing fluid connections between each of said two or more detection chambers and said inlet, wherein at least two of said two or more detection chambers each contains detection reagents comprising a different selected-sequence polynucleotide pre-loaded therein, and each selected-sequence polynucleotide is effective to selectively bind to a respective target polynucleotide, the filling comprising filling the fluid sample into the two or more detection chambers until all of the two or more detection chambers are filled with the fluid sample and the filling is stopped; after all of the two or more detection chambers are filled with the fluid sample and the filling is stopped, then isolating the two or more detection chambers from one another such that the fluid sample is prevented from flowing from one of the detection chambers to another of the detection chambers; reacting the fluid sample with the detection reagents in the two or more detection chambers; producing detection signals in the two or more detection chambers; and detecting the detection signals produced in the two or more detection chambers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification