Granted Patent
B2
US 12,303,892 · App. 18/776,193 · Granted May 20, 2025
Devices and methods for analyzing biological samples
Inventors:
Tarun Kumar Khurana (Palo Alto, CA); Ali Agah (Palo Alto, CA); Yir-Shyuan Wu (Palo Alto, CA); Filiz Gorpe Yasar (Palo Alto, CA)
Assignee:
Cellanome, Inc.
B01L3/502715B01L3/502707B01L3/502761C12Q1/6869C12Q1/6874G01N33/54386G01N33/6842B01L2200/0647B01L2200/12B01L2300/0663B01L2300/0883B01L2300/12B01L2300/163B01L2300/18C12Q2600/158G01N2570/00
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Abstract
Described herein are systems and methods for analyzing biological samples. Including a method for processing an analyte, comprising providing a fluidic device comprising the analyte and one or more polymer precursors; selecting a discrete area within said fluidic device; providing an energy source in optical communication with fluidic device; and selectively supplying a unit of energy generated from the energy source to the fluidic device to generate a polymer matrix within the fluidic device, wherein the polymer matrix is within the discrete area or adjacent to the discrete area.
Claims (31)
1. A method, comprising:
(a) introducing a plurality of cells into a fluidic device, wherein the fluidic device comprises a surface comprising one or more capture elements, and wherein a cell of the plurality of cells couples to a capture element of the one or more capture elements;
(b) introducing one or more polymer precursors into the fluidic device; and
(c) selectively applying light to the fluidic device to polymerize the one or more polymer precursors, thereby selectively encapsulating the cell of the plurality of cells in the fluidic device.
2. The method of claim 1 , wherein the capture element comprises a physical trap.
3. The method of claim 1 , wherein the capture element comprises one or more functional groups capable of interacting with the cell.
4. The method of claim 3 , wherein the one or more functional groups comprise fibronectin.
5. The method of claim 3 , wherein the one or more functional groups comprise arginylglycylaspartic acid (RGD) peptides.
6. The method of claim 3 , wherein the one or more functional groups comprise antibodies.
7. The method of claim 1 , wherein in (c), the cell is encapsulated within a chamber comprising one or more polymer matrix walls.
8. The method of claim 7 , wherein the one or more polymer matrix walls extend from the surface to an additional surface opposite of the surface, thereby forming an interior of the chamber, wherein the interior of the chamber comprises the cell.
9. The method of claim 1 , wherein the one or more polymer precursors comprise (i) one or more cleavable crosslinkers and (ii) a photo-initiator.
10. The method of claim 7 , wherein the chamber has an annular-like cross section.
11. The method of claim 1 , wherein the fluidic device further comprises one or more capture oligonucleotides configured to capture one or more analytes released from the cell.
12. The method of claim 11 , wherein the one or more analytes comprise messenger ribonucleic acids (RNAs), and wherein the method further comprises capturing the messenger RNAs at the one or more capture oligonucleotides.
13. The method of claim 12 , further comprising loading the fluidic device with reverse transcriptase reagents to copy the captured messenger RNAs to produce complementary deoxyribonucleic acids (DNAs).
14. The method of claim 11 , wherein the one or more capture oligonucleotides are located on the surface of the fluidic device.
15. The method of claim 11 , wherein the one or more capture oligonucleotides are located on an additional surface of the fluidic device, wherein the additional surface of the fluidic device is located opposite of the surface.
16. The method of claim 11 , wherein the one or more capture oligonucleotides each comprise a barcode which indicates a position thereof within the fluidic device.
17. The method of claim 1 , wherein the fluidic device further comprises one or more antibodies configured to capture one or more proteins secreted from the cell.
18. The method of claim 17 , wherein the one or more proteins secreted from the cell comprise cytokines.
19. The method of claim 18 , wherein the one or more antibodies are located on one or more cytokine capture beads.
20. The method of claim 19 , wherein the fluidic device further comprises an additional surface opposite of the surface, and wherein the additional surface comprises one or more capture oligonucleotides configured to capture messenger ribonucleic acids (RNAs) released from the cell.
21. The method of claim 1 , wherein the one or more capture elements are disposed in a pattern on the surface.
22. The method of claim 1 , wherein the fluidic device comprises a flow channel, and wherein the surface is a bottom surface of the flow channel.
23. The method of claim 22 , wherein the flow channel further comprises a top surface opposite of the bottom surface, and wherein the top surface comprises one or more capture oligonucleotides configured to capture one or more analytes released from the cell.
24. The method of claim 23 , wherein the one or more analytes comprise messenger ribonucleic acids (RNAs), and wherein the method further comprises capturing the messenger RNAs at the one or more capture oligonucleotides.
25. The method of claim 24 , further comprising loading the fluidic device with reverse transcriptase reagents to copy the captured messenger RNAs to produce complementary deoxyribonucleic acids (DNAs).
26. The method of claim 25 , further comprising sequencing the complementary DNAs.
27. The method of claim 1 , wherein the surface is planar.
28. The method of claim 1 , wherein the one or more capture elements are immobilized on the surface.
Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Jan 21, 2025
From: KHURANA, TARUN KUMAR; AGAH, ALI; WU, YIR-SHYUAN; YASAR, FILIZ GORPE
To: CELLANOME, INC.
Reel/Frame 069948/0471 →
Continuity (6)
Continuation
PCTUS2022011720
· Jan 7, 2022
Provisional Application
63253500
· Oct 7, 2021
Provisional Application
63135463
· Jan 8, 2021
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