IP Library › Granted Patent US 12,392,766
Granted Patent B2
US 12,392,766 · App. 18/459,592 · Granted Aug 19, 2025

Nanopore sensing device, components and method of operation

Inventors: Ping Xie (Needham, MA); Justin Millis (Oxford, GB); Ken Healy (Oxford, GB)
Assignee: Oxford Nanopore Technologies PLC
G01N33/48721G01N27/128
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Quick Facts
Patent No.
US 12,392,766
App. No.
18/459,592
Granted
Aug 19, 2025
Kind
B2
Abstract

Devices for improved nanopore sensing are described. An example device has a structure arranged to separate an analyte reservoir and an outlet chamber. An example device has a structure arranged to separate an analyte reservoir and an outlet chamber. The structure can include an array of nanopore structures, each nanopore structure comprising a passage for fluid connection through the structure between the analyte reservoir and outlet chamber. Control terminals can be arranged for applying a control signal to alter the electrical potential difference across that nanopore structure. Some embodiments include an electronic circuit configured to detect a signal from an electrical transduction element at each nanopore structure. Additional structural features and methods of operating and making the devices are described.

Claims (70)

1. A device for nanopore sensing, said device comprising:

a structure arranged to separate an analyte reservoir and an outlet chamber, the structure comprising an array of nanopore structures, one or more of the nanopore structures comprising a passage for fluid connection through the structure between the analyte reservoir and outlet chamber;

drive electrodes connected respectively in the analyte reservoir and the outlet chamber for imposing an electrical potential difference across the passage;

electrical transduction elements, each element connected to the passage of a respective nanopore structure for measuring the fluidic electrical potential at that electrical transduction element in that nanopore structure; and

control terminals, each terminal connected to a respective nanopore structure for applying a control signal to alter the electrical potential difference across that nanopore structure;

wherein the structure has:

a nanopore layer incorporating a nanopore and/or incorporating a well for supporting a nanopore; and

a base layer incorporating a channel,

wherein the nanopore layer and the base layer are sandwiched together such that the nanopore and/or well are aligned with the channel to define the passage;

wherein the device further comprises a sensor electrode formed on a sense layer, wherein the sense layer is sandwiched between the nanopore layer and the base layer.

2. A device according to claim 1 , wherein the electrical transduction element and the control terminal associated with each nanopore structure are directly connected.

3. A device according to claim 1 , wherein the terminals are configured to apply the control signal to alter the electrical potential difference across each respective nanopore structure in response to a measurement of the fluidic electrical potential at the electrical transduction element at that nanopore structure.

4. A device according to claim 1 , wherein the application of the control signal is configured to alter the potential difference between at least one of the control terminals and at least one of the drive electrodes.

5. A device according to claim 1 , wherein the control signal is connectable to a plurality of the nanopore structures to simultaneously alter the potential difference between the connected control terminals and at least one of the drive electrodes.

6. A device according to claim 1 , wherein each electrical transduction element is isolatable from a measuring circuit.

7. A device according to claim 6 , wherein the electrical transduction elements are isolatable prior to the application of the control signal.

8. A device according to claim 1 , wherein the nanopore layer comprises a nanopore.

9. A device according to claim 8 , wherein the control signal is applied for the purpose of altering the potential difference across the nanopore in order to:

unblock the passage of a nanopore when the device detects that an analyte is blocked;

reject an analyte being measured; and/or

alter the direction and/or speed of translocation of an analyte through the nanopore.

10. A device according to claim 9 , further comprising electronic circuits, wherein each electronic circuit is associated with a group of nanopore structures.

11. A device according to claim 10 , wherein each control circuit is associated with a group of nanopore structures.

12. A device according to claim 11 , wherein at least one of the electrical transduction element, the control circuit, or the control terminal is disposed on or between the outer surface of the structure.

13. A device according to claim 1 , wherein the array has circuits, each circuit associated with a respective nanopore structure and connected to the electrical transduction element, each circuit configured to modify and/or process the signals received therefrom.

14. A device according to claim 1 , wherein the array has circuits, each circuit associated with a respective nanopore structure and connected to the control terminal and/or the electrical transduction element, the circuit configured to alter at the respective nanopore structure an electrical potential imposed by the drive electrodes in response to a signal.

15. A device having nanopore structures for sensing an analyte, the nanopore structures configured in a structure, said structure arranged to separate an analyte reservoir and an outlet chamber, each nanopore structure providing a passage for fluid connection through the structure between the analyte reservoir and outlet chamber, wherein each nanopore structure comprises:

an electrical transduction element; and

an electronic circuit configured to detect a signal from the electrical transduction element, wherein each of the structures are configured to perform one of, or some combination of, store, transmit, process and communicate at least a portion of the signal to a connectable processor;

wherein the structure has:

a nanopore layer incorporating a nanopore and/or incorporating a well for supporting a nanopore; and

a base layer incorporating a channel,

wherein the nanopore layer and the base layer are sandwiched together such that the nanopore and/or well are aligned with the channel to define the passage;

wherein the device further comprises a sensor electrode formed on a sense layer, wherein the sense layer is sandwiched between the nanopore layer and the base layer.

16. A device having an array of nanopore structures configured in a sheet, the sheet comprising:

a nanopore layer having an array of nanopores and/or an array of wells for supporting a nanopore; and

a base layer having an array of channels, said base layer sandwiched to the nanopore layer to form the sheet, wherein the nanopores and/or the wells are aligned with the channels, wherein each of the nanopore structures comprise a passage, each passage defined at least in part by:

one of the nanopores and/or one of the wells of the nanopore layer, at one side of the passage;

a channel of the base layer at the other side of the passage; and

an electrical transduction element;

wherein the device further comprises a sensor electrode formed on a sense layer, wherein the sense layer is sandwiched between the nanopore layer and the base layer.

17. A method of operating a device for nanopore sensing, the method comprising:

imposing an electrical potential difference across an array of nanopore sensors disposed in a structure separating an analyte reservoir and an outlet chamber, each nanopore sensor having a passage for providing a fluid connection between the analyte reservoir and the outlet chamber;

providing an analyte for analysis by the nanopore sensors, each nanopore sensor having an electrical transduction element for measuring a change in the electrical potential at the electrical transduction element of that nanopore sensor when an analyte is induced through a nanopore of the nanopore sensor; and

applying a control signal to a control terminal of an electrical transduction element of a nanopore sensor of the array to alter the electrical potential difference across that nanopore sensor;

wherein the structure has:

a nanopore layer incorporating a nanopore and/or incorporating a well for supporting a nanopore; and

a base layer incorporating a channel,

wherein the nanopore layer and the base layer are sandwiched together such that the nanopore and/or well are aligned with the channel to define the passage;

wherein the device further comprises a sensor electrode formed on a sense layer, wherein the sense layer is sandwiched between the nanopore layer and the base layer.

18. A method of forming a device having nanopore structures for sensing an analyte, the method comprising:

forming nanopore structures in a structure and arranging said structure to separate an analyte reservoir and an outlet chamber of the device such that each nanopore structure provides a passage for fluid connection through the structure between the analyte reservoir and outlet chamber; and

fabricating in each nanopore structure:

an electrical transduction element; and

an electronic circuit configured to measure a signal from the electrical transduction element,

wherein each of the nanopore structures are configured to at least one of store, transmit, process and communicate at least a portion of the measured signal, or information derived therefrom, to a connectable processor;

wherein the structure has:

a nanopore layer incorporating a nanopore and/or incorporating a well for supporting a nanopore; and

a base layer incorporating a channel,

wherein the nanopore layer and the base layer are sandwiched together such that the nanopore and/or well are aligned with the channel to define the passage;

wherein the device further comprises a sensor electrode formed on a sense layer, wherein the sense layer is sandwiched between the nanopore layer and the base layer.

19. A method of forming a device having an array of nanopore structures configured in a sheet, including arranging the sheet to separate an analyte reservoir and an outlet chamber of the device such that each nanopore structure provides a passage for fluid connection through the structure between the analyte reservoir and outlet chamber, the method comprising:

forming a nanopore layer having an array of nanopores and/or an array of wells for supporting a nanopore;

forming an array of electrical transduction elements;

forming a base layer having an array of channels, said base layer sandwiched to the nanopore layer to form the sheet such that the nanopores and/or the wells are aligned with the electrical transduction elements and channels; and

providing a passage through each of the nanopore structures such that each passage is defined at least in part by:

one of the nanopores and/or one of the wells of the nanopore layer, at one side of the passage;

a channel of the base layer at the other side of the passage; and

an electrical transduction element;

wherein the device further comprises a sensor electrode formed on a sense layer, wherein the sense layer is sandwiched between the nanopore layer and the base layer.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 13, 2023
From: XIE, PING; MILLIS, JUSTIN; HEALY, KEN
To: OXFORD NANOPORE TECHNOLOGIES INC.
Reel/Frame 065542/0815 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 13, 2023
From: OXFORD NANOPORE TECHNOLOGIES INC.
To: OXFORD NANOPORE TECHNOLOGIES LIMITED
Reel/Frame 065543/0066 →
CHANGE OF NAME Recorded Nov 13, 2023
From: OXFORD NANOPORE TECHNOLOGIES LIMITED
To: OXFORD NANOPORE TECHNOLOGIES PLC
Reel/Frame 065551/0768 →
Continuity (3)
Continuation 16816221 · Mar 11, 2020
Provisional Application 62817211 · Mar 12, 2019
Related Publication 20240069007A1 · Feb 29, 2024
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