IP Library Granted Patent US 10,376,891
Granted Patent B2
US 10,376,891 · App. 15/212,992 · Granted Aug 13, 2019

System and method for temperature referencing for melt curve data collection

Inventors: Kenton C. Hasson (Germantown, MD); Hiroshi Inoue (Rockville, MD)
Assignee: Canon U.S. Life Sciences, Inc.
B01L7/52B01L3/502784C12Q1/68C12Q1/6825G01N21/6428G01N25/4866G01N25/4893B01L3/5025B01L2200/147B01L2300/0627B01L2300/0816B01L2300/1827G01N21/645G01N2021/6439G01N2201/06113
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Quick Facts
Patent No.
US 10,376,891
App. No.
15/212,992
Granted
Aug 13, 2019
Kind
B2
Abstract

The present invention relates to systems and methods of temperature referencing for melt curve data collection. More specifically, the present invention relates to systems and methods for collecting DNA melt curve data for a DNA sample and a temperature reference material.

Claims (32)

1. A system for performing melt curve data collection comprising:

a container comprising at least three chambers, wherein at least two of the chambers are spatially separated from each other, and contain a temperature reference material, and at least one chamber contains a DNA test sample;

a heating system to heat the container,

a detection system, wherein a detectable signal from the temperature reference material provides feedback to the heating system; and

a control system for determining a spatial temperature gradient due to temporal fluctuation within the container to calculate a temperature at a location of the DNA test sample based on temperature results from the temperature reference material that surrounds the location of the DNA test sample.

2. The system of claim 1 , wherein the heating system supplies heat to all of the chambers simultaneously.

3. The system of claim 1 , wherein the chambers contain at least two spatially separated temperature reference materials to determine a spatial temperature gradient.

4. The system of claim 1 , wherein the temperature reference material brackets the DNA test sample in both space and time.

5. The system of claim 1 , wherein the temperature reference material is mixed with the DNA test sample.

6. The system of claim 1 , wherein the detection system is an optical detection system.

7. The system of claim 1 , wherein the container is a microfluidic chip and the chambers are microfluidic channels in the chip.

8. The system of claim 1 , wherein at least two chambers containing DNA test samples are located between two chambers containing the temperature reference material.

9. The system of claim 1 , wherein the temperature reference material is a known DNA mixture.

10. The system of claim 1 , wherein the temperature reference material is a thermochromatic material.

11. A system for performing melt curve data collection, said system comprising:

a container comprising at least three chambers that are refillable without moving the container, wherein at least two of the chambers are spatially separated from each other and contain a temperature reference material, and at least one chamber contains a DNA test sample;

a heating system to heat the container;

a detection system, wherein a detectable signal from the temperature reference material provides feedback to the heating system;

a control system for determining a spatial temperature gradient due to temporal fluctuation within the container to calculate a temperature at a location of the DNA test sample based on temperature results from the temperature reference material that surrounds the location of the DNA test sample.

12. The system of claim 11 , wherein the heating system supplies heat to all of the at least three chambers simultaneously.

13. The system of claim 11 , wherein the detection system is an optical detection system.

14. The system of claim 11 , wherein the DNA test sample and the temperature reference material are alternated in the chamber.

15. The system of claim 11 , wherein the temperature reference material brackets the DNA test sample in both space and time.

16. The system of claim 11 , wherein the DNA test sample and the temperature reference material are mixed, wherein the temperature reference material has a detection signature that is discernible from that of the DNA test sample, and wherein data from both the sample and the temperature reference material are collected at the same place and the same time.

17. The system of claim 11 , wherein the temperature reference material is also a flow marker.

18. The system of claim 11 , wherein at least two chambers containing DNA test samples are located between two chambers containing the temperature reference material.

19. The system of claim 11 , wherein the temperature reference material is a known DNA mixture.

20. The system of claim 11 , wherein the temperature reference material is a thermochromatic material.

21. The system of claim 1 , wherein at least two of the chambers are located less than 1 mm from each other.

22. The system of claim 1 , wherein the detection system monitors optical properties from the chambers simultaneously.

23. The system of claim 11 , wherein at least two of the chambers are located less than 1 mm from each other.

24. The system of claim 11 , wherein the detection system monitors optical properties from the chambers simultaneously.

Assignments (1)
MERGER AND CHANGE OF NAME Recorded Dec 14, 2020
From: CANON U.S. LIFE SCIENCES, INC.; CANON U.S.A., INC.
To: CANON U.S.A., INC.
Reel/Frame 054640/0171 →
Continuity (2)
Division 12144307 · Jun 23, 2008
Related Publication 20160325285A1 · Nov 10, 2016