IP Library › Granted Patent US 12,186,751
Granted Patent B2
US 12,186,751 · App. 16/915,240 · Granted Jan 7, 2025

Devices and systems incorporating acoustic ordering and methods of use thereof

Inventors: Alireza Salmanzadeh (Pleasanton, CA); Rajiv Bharadwaj (Pleasanton, CA)
Assignee: 10x Genomics, Inc.
B01L3/502761B01L2200/027B01L2200/0652B01L2400/0496
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Quick Facts
Patent No.
US 12,186,751
App. No.
16/915,240
Granted
Jan 7, 2025
Kind
B2
Abstract

Devices, systems, and their methods of use, for generating droplets are provided. One or more geometric parameters of a microfluidic channel can be selected to generate droplets of a desired and predictable droplet size.

Claims (67)

1. A device for ordering particles in a liquid, comprising:

a) a first channel having a first inlet and a first outlet; and

b) a first source of acoustic energy operatively coupled to the first channel to produce an acoustic wave having a first plurality of evenly spaced nodes disposed longitudinally in the first channel to generate evenly spaced first particles in a first liquid in the first channel in the direction of flow;

c) a first pump configured to transport the first particles in the first channel;

d) a second channel having a second inlet and a second outlet, wherein the second channel has an intersection with the first channel between the first inlet and the first outlet;

e) a second source of acoustic energy operatively coupled to the second channel to produce an acoustic wave having a second plurality of evenly spaced nodes disposed longitudinally in the second channel to generate evenly spaced second particles in a second liquid in the second channel in the direction of flow;

f) a second pump configured to transport the second particles in the second channel; and

g) a third channel, wherein the third channel has an intersection with the first channel between (i) the intersection of the second channel and (ii) the first channel outlet.

2. The device of claim 1 , further comprising

a source of first particles in fluid communication with the first inlet.

3. The device of claim 1 , wherein the first source of acoustic energy comprises an interdigitated transducer or a piezoelectric material.

4. The device of claim 1 , further comprising a source of second particles in fluid communication with the second channel.

5. The device of claim 1 , wherein the first source of acoustic energy comprises a standing acoustic wave actuator.

6. The device of claim 1 , wherein the second source of acoustic energy comprises an interdigitated transducer or a piezoelectric material.

7. The device of claim 1 :

i) wherein the device further comprises a collection region in fluid communication with the first outlet; or

ii) wherein a droplet formation region comprises the intersection of the third channel the first channel, and wherein the droplet formation region is configured to form droplets comprising a first particle from the first liquid in the first channel and a second particle from the second liquid in the second channel, wherein the droplet formation region is in fluid communication with the first outlet.

8. A method of ordering particles in a liquid, comprising:

a) providing the device of claim 1 ;

b) actuating the first source of acoustic energy of the device to propagate the acoustic wave having the first plurality of nodes in the first channel and actuating the second source of acoustic energy of the device to propagate the acoustic wave having the second plurality of nodes in the second channel;

c) allowing first particles in the first liquid in the first channel to order according to the first plurality of nodes and allowing second particles in the second liquid in the second channel to order according to the second plurality of nodes; and

d) pumping the ordered particles in the first channel with the first pump and pumping the ordered particles in the second channel with the second pump.

9. The method of claim 8 , wherein:

i) the first source of acoustic energy comprises an interdigitated transducer or a piezoelectric material; or

ii) the device further comprises a collection region in fluid communication with the first outlet.

10. The method of claim 8 , wherein the particle comprises a cell, a bead, or a combination thereof.

11. A method of producing droplets comprising a particle, comprising:

a) providing a device comprising:

i) a first channel having a first inlet and a first outlet;

ii) a first source of acoustic energy operatively coupled to the first channel;

iii) a droplet formation region in fluid communication with the first outlet;

iv) a first pump configured to transport the ordered particles in the first channel;

v) a second channel having a second inlet and a second outlet, wherein the second channel intersects the first channel between the first inlet and the first outlet;

vi) a second source of acoustic energy operatively coupled to the second channel; and

vii) a second pump configured to transport the ordered particles in the second channel;

b) actuating the first source of acoustic energy of the device to propagate an acoustic wave having a first plurality of evenly spaced nodes disposed longitudinally in the first channel and actuating the second source of acoustic energy of the device to propagate an acoustic wave having a second plurality of evenly spaced nodes disposed longitudinally in the second channel;

c) allowing first particles in a first liquid to evenly space in the first channel in the direction of flow and allowing second particles in a second liquid in the second channel to evenly space in the second channel in the direction of flow; and

d) pumping the first particles in the first channel to the droplet formation region with the first pump and pumping the second particles in the second channel with the second pump to the droplet formation region so that the droplets produced by the droplet formation region preferentially contain a specified number of particles.

12. The method of claim 11 , wherein:

i) the first source of acoustic energy comprises an interdigitated transducer or a piezoelectric material; and/or

ii) the device further comprises a collection region in fluid communication with the first outlet.

13. The method of claim 12 , wherein the first source of acoustic energy comprises a standing acoustic wave actuator that propagates an acoustic wave with one or more the first plurality of nodes in the first channel.

14. The method of claim 13 , wherein:

i) the second source of acoustic energy comprises an interdigitated transducer or a piezoelectric material; and/or

a specified number of particles in the first channel are preferentially associated with a specified number of particles in the second channel at the intersection of the first and second channels.

15. The method of claim 14 , wherein:

i) the specified number of particles in the first channel is 1;

ii) the specified number of particles in the second channel is 1; and/or

iii) the particles in the first channel and/or the second channel comprise a cell, a bead, or a combination thereof.

16. A system for ordering particles in a liquid, comprising:

a) a device comprising a first channel having a first inlet and a first outlet;

b) a first source of acoustic energy operatively coupled to the first channel to produce an acoustic wave having a first plurality of evenly spaced nodes disposed longitudinally in the first channel to generate evenly spaced first particles in a first liquid in the first channel in the direction of flow;

c) a first pump configured to transport the first particles in the first channel;

d) a second channel having a second inlet and a second outlet, wherein the second channel intersects the first channel between the first inlet and the first outlet;

e) a second source of acoustic energy operatively coupled to the second channel to produce an acoustic wave having a second plurality of evenly spaced nodes disposed longitudinally in the second channel to generate evenly spaced second particles in a second liquid in the second channel in the direction of flow;

f) a second pump configured to transport the second particles in the second channel; and

g) a third channel, wherein the third channel has an intersection with the first channel between (i) the intersection of the second channel and (ii) the first channel outlet.

17. The system of claim 16 , wherein:

i) the system further comprises a first source of first particles in fluid communication with the first inlet;

ii) the first source of acoustic energy comprises an interdigitated transducer or a piezoelectric material; and/or

iii) the device further comprises a collection region in fluid communication with the first outlet.

18. The system of claim 17 , wherein:

i) the device further comprises a source of second particles in fluid communication with the second channel.

19. The system of claim 16 , wherein:

i) the second source of acoustic energy comprises an interdigitated transducer or a piezoelectric material; and/or

ii) the particles in the second channel comprise a cell, a bead, or a combination thereof.

20. The system of claim 16 , wherein the particles in the first channel comprise a cell, a bead, or a combination thereof.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 18, 2020
From: SALMANZADEH, ALIREZA; BHARADWAJ, RAJIV
To: 10X GENOMICS, INC.
Reel/Frame 054402/0991 →
Continuity (2)
Provisional Application 62868566 · Jun 28, 2019
Related Publication 20200406261A1 · Dec 31, 2020
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