Compositions and methods for analyte detection using nanoswitches
US-12077807-B2 · Sep 3, 2024 · US
US11629373B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11629373-B2 |
| Application number | US-202016832309-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 27, 2020 |
| Priority date | Sep 12, 2014 |
| Publication date | Apr 18, 2023 |
| Grant date | Apr 18, 2023 |
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
What the patent document calls the invention.
A short plain-language summary of the technical disclosure.
Who owns or filed the patent and who is credited as inventor.
Filing, priority, publication, and grant dates set the timeline.
The legal scope of protection — read this for what is actually claimed.
Technology tags used to group this patent with similar filings.
Prior art links and similar publications in this corpus.
Official abstract text for this publication.
Under one aspect, a composition includes a substrate; a first polynucleotide coupled to the substrate; a second polynucleotide hybridized to the first polynucleotide; and a catalyst coupled to a first nucleotide of the second polynucleotide, the catalyst being operable to cause a chemiluminogenic molecule to emit a photon. Under another aspect, a method includes providing a catalyst operable to cause a first chemiluminogenic molecule to emit a photon; providing a substrate; providing a first polynucleotide coupled to the substrate; hybridizing a second polynucleotide to the first polynucleotide; coupling a first quencher to a first nucleotide of the second polynucleotide; and inhibiting, by the first quencher, photon emission by the first chemiluminogenic molecule.
Opening claim text (preview).
What is claimed is: 1. A composition comprising: a catalyst operable to cause a chemiluminogenic molecule to emit a photon; a substrate; a first polynucleotide coupled to the substrate; a second polynucleotide hybridized to the first polynucleotide; and a quencher coupled to a first nucleotide at a 3′ end of the second polynucleotide, the quencher operable to inhibit photon emission by the chemiluminogenic molecule. 2. The composition of claim 1 , wherein the catalyst is coupled to the substrate or coupled to the first polynucleotide. 3. The composition of claim 1 , wherein the quencher is cleavable from the first nucleotide. 4. The composition of claim 1 , wherein the quencher is coupled to the first nucleotide via a first moiety, and a second moiety is coupled to the first moiety and to the quencher. 5. The composition of claim 1 , wherein the catalyst is selected from the group consisting of an enzyme, a metallic catalyst, and a metalorganic catalyst and wherein the enzyme is selected from the group consisting of: a luciferase, a 1,2-dioxetane cleaver and a peroxide generator. 6. The composition of claim 1 wherein the chemiluminogenic molecule is selected from the group consisting of a luciferin, a luciferin derivative, coelenterazine, a coelenterazine derivative, a 1,2-dioxetane derivative, luminol, a luminol derivative, acridinium, and an acridinium derivative. 7. The composition of claim 1 , wherein the quencher is selected from the group consisting of a DABCYL quencher, a BHQ quencher, (±)-6-hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid, 2,4-dinitrophenol (2,4-DNP), 2,5-dinitrophenol (2,5-DNP), and 2,6-dinitrophenol (2,6-DNP). 8. A system comprising: the composition of claim 1 , and circuitry configured to detect a photon emitted by the chemiluminogenic molecule. 9. A method comprising: obtaining the composition of claim 1 by: providing a catalyst operable to cause a first chemiluminogenic molecule to emit a photon; providing a substrate; providing a first polynucleotide coupled to the substrate; hybridizing a second polynucleotide to the first polynucleotide; and coupling a first quencher to a first nucleotide at the 3′ end of the second polynucleotide, wherein the first quencher inhibits photon emission by the first chemiluminogenic molecule. 10. The method of claim 9 , further comprising: cleaving the first quencher from the first nucleotide; adding a second nucleotide to the 3′ end of second polynucleotide; and coupling a second quencher to the second nucleotide. 11. The method of claim 10 , wherein the second nucleotide is coupled to a first moiety, the second quencher is coupled to a second moiety, wherein said second quencher is coupled to the second nucleotide by coupling the second moiety to the first moiety, and wherein the second quencher inhibits photon emission by a second chemiluminogenic molecule; detecting a photon emitted by the second chemiluminogenic molecule in the absence of the second quencher; detecting the presence of the second nucleotide based on inhibition of emission of the photon by the second chemiluminogenic molecule; detecting a photon emitted by the first chemiluminogenic molecule in the absence of the first quencher; and detecting the presence of the first nucleotide based on detection of inhibition of emission of the photon by the first chemiluminogenic molecule. 12. The composition of claim 1 , further comprising a plurality of the chemiluminogenic molecules, wherein the quencher inhibits photon emission by each of the chemiluminogenic molecules. 13. The composition of claim 12 , further comprising a plurality of reagent molecules, wherein the catalyst is capable of causing each of the chemiluminogenic molecules to emit a corresponding photon by oxidizing the chemiluminogenic molecule using a reagent molecule in the absence of the quencher to form an oxidized chemiluminogenic molecule. 14. The composition of claim 13 , wherein the oxidized chemiluminogenic molecule has an excited state that decays by emitting the corresponding photon in the absence of the quencher. 15. The composition of claim 4 , wherein one of the first and second moieties is biotin or a biotin derivative, and wherein the other of the first and second moieties is streptavidin. 16. The composition of claim 15 , wherein one of the first and second moieties is digoxigenin, and wherein the other of the first and second moieties is anti-digoxigenin. 17. The composition of claim 1 , wherein the catalyst comprises a peroxide generator, and wherein the chemiluminogenic molecule comprises luminol, a luminol derivative, acridinium, or an acridinium derivative. 18. The composition of claim 17 , wherein the chemiluminogenic molecule comprises luminol, or a luminol derivative. 19. The composition of claim 17 , wherein the chemiluminogenic molecule comprises acridinium, or an acridinium derivative. 20. The composition of claim 17 , wherein the peroxide generator comprises an enzyme. 21. The composition of claim 17 , wherein the peroxide generator comprises a metallic catalyst, an organic catalyst, or a metalorganic catalyst.
involving interaction of two or more labels, e.g. resonant energy transfer · CPC title
the label being enzymatic, i.e. proteins, and non proteins, such as nucleic acid with enzymatic activity · CPC title
Massive parallel sequencing · CPC title
luminescence · CPC title
Primer extension · CPC title
Related publications grouped by family.
Answers are generated from the same data shown on this page.