IP Library › Granted Patent US 12,564,667
Granted Patent B2
US 12,564,667 · App. 17/793,338 · Granted Mar 3, 2026

Devices containing cellular membrane and uses thereof

Inventor: Weiwei Gao (San Diego, CA)
Assignee: Arytha Biosciences LLC
A61M1/3679A61M1/3489
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Quick Facts
Patent No.
US 12,564,667
App. No.
17/793,338
Granted
Mar 3, 2026
Kind
B2
Abstract

The present disclosure relates to devices, e.g, extracorporeal blood purification (EBP) devices, which comprise a cartridge or sorbent comprising a cellular membrane derived from a cell. The present disclosure also relates methods for removing or reducing a substance, e.g, an undesirable substance, from a fluid, e.g, a subject's blood, using the devices or EBP devices.

Claims (27)

1 . A device for extracorporeal detoxification, which comprises a cartridge or sorbent comprising a cellular membrane derived from a cell, and

wherein said cartridge or sorbent has a ratio between a surface area of said cellular membrane and a volume of said cartridge or sorbent that ranges from about 1×10 4 m −1 to about 3×10 8 m −1 .

2 . The device of claim 1 , wherein the cartridge or sorbent has a ratio between the surface area of the cellular membrane and the volume of the cartridge or sorbent that ranges from about 1×10 5 m −1 to about 3×10 8 m −1 .

3 . The device of claim 1 , wherein the cartridge or sorbent comprises nanoparticles comprising the cellular membrane, nanostructures comprising the cellular membrane, plenary surfaces comprising the cellular membrane, or a combination thereof.

4 . The device of claim 1 , wherein the cartridge or sorbent comprises nanoparticles comprising the cellular membrane.

5 . The device of claim 3 , wherein the cellular membrane of the nanoparticle comprises a plasma membrane or an intracellular membrane.

6 . The device of claim 3 , wherein the cellular membrane of the nanoparticle is derived from a multicellular organism.

7 . The device of claim 3 , wherein the nanoparticle further comprises a releasable cargo.

8 . The device of claim 3 , wherein the nanoparticle has a diameter from about 10 nm to about 10 μm.

9 . The device of claim 3 , wherein the nanoparticle substantially lacks constituents of the cell from which the cellular membrane is derived.

10 . The device of claim 3 , wherein the nanoparticle substantially maintains natural structural integrity or activity of the cellular membrane, or the constituents of the cellular membrane.

11 . The device of claim 3 , the nanoparticle is biocompatible or biodegradable.

12 . The device of claim 3 , wherein the inner core of the nanoparticle comprises PLGA and the outer surface comprises a plasma membrane derived from a red blood cell.

13 . The device of claim 3 , wherein the nanoparticle substantially lacks immunogenicity to a species or subject from which the cellular membrane is derived.

14 . The device of claim 3 , wherein the outer surface comprises a naturally occurring cellular membrane and further comprises a modified cellular membrane and/or a synthetic membrane.

15 . The device of claim 1 , wherein the cartridge or sorbent comprises nanostructures comprising the cellular membrane.

16 . The device of claim 1 , wherein the cartridge or sorbent comprises nanofibers comprising the cellular membrane.

17 . The device of claim 1 , wherein the cartridge or sorbent comprises at least 2 or all 3 of the following:

1) nanoparticles comprising the cellular membrane;

2) nanostructures comprising the cellular membrane;

3) plenary surfaces comprising the cellular membrane.

18 . The device of claim 1 , wherein the cellular membrane is derived from a blood cell, a tumor cell, a cancer cell, an immune cell, a stem cell, an endothelial cell, a neuronal cell, an exosome, a secretory vesicle and/or a synaptic vesicle.

19 . The device of claim 1 , which has a length that ranges from 0.01 m to 1 m (meter).

20 . The device of claim 1 , which has a cross-section surface area that ranges from 1×10 −3 m 2 (square meter) to about 0.01 m 2 (square meter).

21 . The device of claim 1 , which is an extracorporeal blood purification (EBP) device.

22 . The device of claim 1 , wherein the cellular membranes are derived from different types of cells.

23 . A method for removing or reducing a substance from a liquid which method comprises, ex vivo, contacting a liquid with the device of claim 1 .

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 24, 2025
From: GAO, WEIWEI
To: ARYTHA BIOSCIENCES LLC
Reel/Frame 070935/0113 →
Continuity (2)
Provisional Application 62963465 · Jan 20, 2020
Related Publication 20230051094A1 · Feb 16, 2023
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