IP Library Granted Patent US 12,331,349
Granted Patent B2
US 12,331,349 · App. 18/341,440 · Granted Jun 17, 2025

Method for detection of analytes via polymer complexes

Inventors: Wesley Philip Wong (Cambridge, MA); Clinton H. Hansen (Brighton, MA)
Assignee: Children's Medical Center Corporation
C12Q1/6848C12Q1/68C12Q1/6876G01N33/5306G01N33/5308C12Q2600/16
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Quick Facts
Patent No.
US 12,331,349
App. No.
18/341,440
Granted
Jun 17, 2025
Kind
B2
Abstract

Provided herein are products and methods for detecting analytes using polymers that bind to such analytes and thereby undergo a conformational change or contribute to a newly formed complex.

Claims (22)

1. A method for detecting an analyte in a sample comprising

combining a sample with a plurality of polymers, each polymer conjugated to an analyte-specific binding partner, under conditions that allow binding of each analyte-specific binding partner to an analyte, wherein the analyte-specific binding partners are able to bind to a single analyte simultaneously, wherein the polymers of the plurality are not bound to each other directly or indirectly in the absence of the analyte,

detecting a complex formed by the binding of the plurality of polymers or a subset of the plurality of polymers to an analyte in the sample, wherein presence of the complex is indicative of presence of the analyte in the sample.

2. The method of claim 1 , wherein at least two polymers of the plurality are conjugated to identical analyte-specific binding partners.

3. The method of claim 1 , wherein at least two polymers of the plurality are conjugated to different analyte-specific binding partners.

4. The method of claim 1 , wherein the analyte-specific binding partner of at least one polymer of the plurality is an antibody or antigen-binding antibody fragment.

5. The method of claim 2 , wherein at least two polymers of the plurality are conjugated to analyte-specific binding partners which are an antibody or antigen-binding antibody fragment, and wherein the analyte-specific binding partners bind to different epitopes of an analyte or the analyte-specific binding partners bind to an identical epitope that is present at least twice in an analyte.

6. The method of claim 1 , wherein at least one polymer of the plurality is conjugated to an analyte-specific binding partner located at about the mid-point along the length of the at least one polymer.

7. The method of claim 1 , wherein conformation of the complex identifies the analyte.

8. The method of claim 1 , wherein the analyte is a multicomponent complex.

9. The method of claim 8 , wherein the analyte-specific binding partners bind to different components of the multicomponent complex.

10. The method of claim 1 , wherein at least one polymer of the plurality is a nucleic acid.

11. The method of claim 1 , wherein at least one polymer of the plurality comprises naturally occurring nucleotides.

12. The method of claim 1 , wherein at least one polymer of the plurality is a single-stranded nucleic acid.

13. The method of claim 1 , wherein at least one polymer of the plurality is a partially double-stranded nucleic acid.

14. The method of claim 13 , wherein the at least one polymer of the plurality comprises a single-stranded nucleic acid hybridized to one or more oligonucleotides.

15. The method of claim 1 , wherein at least one polymer of the plurality is a double-stranded nucleic acid.

16. The method of claim 15 , wherein the at least one polymer of the plurality is a double-stranded nucleic acid having nicks in at least one nucleic acid strand.

17. The method of claim 1 , wherein the complex is detected based on its conformation.

18. The method of claim 1 , wherein the complex is detected using gel electrophoresis, centrifuge force microscopy, optical tweezers, dynamic light scattering, or fluorescence.

19. The method of claim 1 , wherein the sample is a urine sample.

20. The method of claim 1 , wherein the method detects an analyte that is present at less than 100 or less than 10 copies in a sample.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 26, 2023
From: WONG, WESLEY PHILIP; HANSEN, CLINTON H.
To: CHILDREN'S MEDICAL CENTER CORPORATION
Reel/Frame 064382/0915 →
Continuity (3)
Continuation 16074952
Provisional Application 62293306 · Feb 9, 2016
Related Publication 20240018577A1 · Jan 18, 2024
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