IP Library Granted Patent US 9,381,158
Granted Patent B2
US 9,381,158 · App. 13/904,517 · Granted Jul 5, 2016

Nanoparticle fabrication methods, systems, and materials for fabricating artificial red blood cells

Inventors: Joseph M. DeSimone (Chapel Hill, NC); Edward T. Samulski (Chapel Hill, NC)
Assignee: The University of North Carolina at Chapel Hill
A61K9/1641A61K9/0026A61K9/5146A61K9/5153A61K35/18A61K38/42A61K47/34A61K51/1244A61L27/18A61K9/16A61L2400/12Y10S514/832Y10T428/2982
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Quick Facts
Patent No.
US 9,381,158
App. No.
13/904,517
Granted
Jul 5, 2016
Kind
B2
Abstract

A plurality of artificial red blood cell particles includes each particle of the plurality being substantially monodisperse and each particle having a largest common linear dimension of about 5 μm to about 10 μm. The particles can also have a modulus configured such that a particle of the plurality of particles can pass through a tube having an inner diameter of less than about 3 μm.

Claims (15)

1. A synthetic particle, comprising:

a substantially disc shaped, molded synthetic polymer particle having largest linear dimension of between about 5 μm to about 10 μm and a modulus of less than about 1 MPa, wherein the particle can pass through an opening of less than about 3 μm.

2. The synthetic particle of claim 1 , wherein the synthetic polymer comprises a biocompatible polymer.

3. The synthetic particle of claim 1 , wherein the synthetic polymer comprises poly(ethylene glycol), poly(lactic acid), poly(lactide-co-glycolide), poly(ethylene glycol) diacrylate, or trimethylolpropane triacrylate.

4. The synthetic particle of claim 1 , wherein the particle further comprises a cargo selected from the group consisting of a therapeutic agent, a biologic, a diagnostic agent, hemoglobin, and an imaging agent.

5. The synthetic particle of claim 4 , wherein the cargo is capable of binding and releasing oxygen.

6. The synthetic particle of claim 1 , wherein the opening is an orifice, an opening of a tube or a lumen.

7. A drug delivery particle, comprising:

a substantially disc shaped, molded synthetic polymer particle having a largest linear dimension less than about 10 μm and a modulus of less than about 1 MPa, wherein the particle can pass through an opening less than about 60% the largest linear dimension of the particle.

8. The drug delivery particle of claim 7 , wherein the particle can pass through an opening of less than about 37.5% the largest linear dimension of the particle.

9. The drug delivery particle of claim 7 , wherein the particle can pass through an opening of less than about 30% the largest linear dimension of the particle.

10. The drug delivery particle of claim 7 , wherein the synthetic polymer comprises a biocompatible polymer.

11. The drug delivery particle of claim 7 , wherein the synthetic polymer comprises poly(ethylene glycol), poly(lactic acid), poly(lactide-co-glycolide), poly(ethylene glycol) diacrylate, or trimethylolpropane triacrylate.

12. The drug delivery particle of claim 7 , wherein the particle further comprises a cargo selected from the group consisting of a therapeutic agent, a biologic, a diagnostic agent, hemoglobin, and an imaging agent.

13. The drug delivery particle of claim 7 , wherein the opening is an orifice, an opening of a tube or a lumen.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 31, 2016
From: DESIMONE, JOSEPH M.
To: THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL; NORTH CAROLINA STATE UNIVERSITY
Reel/Frame 038750/0339 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 31, 2016
From: SAMULSKI, EDWARD T.
To: THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL
Reel/Frame 038750/0398 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 31, 2016
From: NORTH CAROLINA STATE UNIVERSITY
To: THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL
Reel/Frame 038750/0422 →
CONFIRMATORY LICENSE Recorded Aug 14, 2014
From: THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 033533/0135 →
Continuity (3)
Continuation 12374182
Provisional Application 60833736 · Jul 27, 2006
Related Publication 20130336884A1 · Dec 19, 2013