Methods and systems for multiplex quantitative nucleic acid amplification
First Claim
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1. A method for assaying at least one template nucleic acid molecule, comprising:
- (a) activating a sensor array comprising (i) a substrate comprising a plurality of first probes immobilized to a first pixel, a plurality of second probes immobilized to a second pixel, wherein said first probes are configured to capture an individual primer of a primer set, and wherein said second probes are configured to to capture a control nucleic acid molecule, and (ii) an array of detectors configured to detect at least one first signal from said first pixel and at least one second signal from said second pixel, wherein a difference between said at least one first signal and said at least one second signal over time is indicative of said individual primer binding with an individual probe of said plurality of first probes;
(b) subjecting a reaction mixture to a nucleic acid amplification reaction under conditions sufficient to yield at least one target nucleic acid molecule as an amplification product(s) of said template nucleic acid molecule, wherein said reaction mixture comprises (i) a nucleic acid sample containing or suspected of containing said template nucleic acid molecule, (ii) said primer set, (iii) said control nucleic acid molecule, and (iv) a polymerizing enzyme, wherein said individual primer of said primer set has sequence complementarity with said template nucleic acid molecule;
(c) using said array of detectors to detect said at least one first signal and said at least one second signal at multiple time points during said nucleic acid amplification reaction; and
(d) using said difference between said at least one first signal and said at least one second signal to detect said template nucleic acid molecule.
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Abstract
The present disclosure provides methods, devices and systems that enable simultaneous multiplexing amplification reaction and real-time detection in a single reaction chamber.
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Citations
27 Claims
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1. A method for assaying at least one template nucleic acid molecule, comprising:
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(a) activating a sensor array comprising (i) a substrate comprising a plurality of first probes immobilized to a first pixel, a plurality of second probes immobilized to a second pixel, wherein said first probes are configured to capture an individual primer of a primer set, and wherein said second probes are configured to to capture a control nucleic acid molecule, and (ii) an array of detectors configured to detect at least one first signal from said first pixel and at least one second signal from said second pixel, wherein a difference between said at least one first signal and said at least one second signal over time is indicative of said individual primer binding with an individual probe of said plurality of first probes; (b) subjecting a reaction mixture to a nucleic acid amplification reaction under conditions sufficient to yield at least one target nucleic acid molecule as an amplification product(s) of said template nucleic acid molecule, wherein said reaction mixture comprises (i) a nucleic acid sample containing or suspected of containing said template nucleic acid molecule, (ii) said primer set, (iii) said control nucleic acid molecule, and (iv) a polymerizing enzyme, wherein said individual primer of said primer set has sequence complementarity with said template nucleic acid molecule; (c) using said array of detectors to detect said at least one first signal and said at least one second signal at multiple time points during said nucleic acid amplification reaction; and (d) using said difference between said at least one first signal and said at least one second signal to detect said template nucleic acid molecule. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system for assaying at least one template nucleic acid molecule, comprising:
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(a) a reaction chamber comprising a reaction mixture, wherein said reaction mixture comprises (i) a nucleic acid sample containing or suspected of containing said template nucleic acid molecule, (ii) a primer set comprising an individual primer, (iii) a control nucleic acid molecule, and (iv) a polymerizing enzyme, wherein said individual primer of said primer set has sequence complementarity with said template nucleic acid molecule, wherein said reaction chamber comprising said reaction mixture is configured to facilitate a nucleic acid amplification reaction with said reaction mixture under conditions sufficient to yield at least one target nucleic acid molecule as an amplification product(s) of said template nucleic acid molecule, wherein said nucleic acid amplification reaction does not yield any amplification product of said control nucleic acid; (b) a sensor array comprising (i) a substrate comprising a plurality of first probes immobilized to a first pixel, a plurality of second probes immobilized to a second pixel, wherein said first probes are configured to capture said individual primer of said primer set, and wherein said second probes are configured to capture said control nucleic acid molecule, and (ii) an array of detectors configured to detect at least one first signal from said first pixel and at least one second signal from said second pixel, wherein a difference between said at least one first signal and said at least one second signal over time is indicative of said individual primer binding with an individual probe of said plurality of first probes; and (c) a computer processor coupled to said sensor array and programmed to (i) subject said reaction mixture to said nucleic acid amplification reaction, and (ii) detect said at least one first signal and said at least one second signal at multiple time points during said nucleic acid amplification reaction. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification