IP Library Granted Patent US 8,465,775
Granted Patent B2
US 8,465,775 · App. 12/374,182 · Granted Jun 18, 2013

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
A61K9/0026A61K9/16Y10S514/832
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Quick Facts
Patent No.
US 8,465,775
App. No.
12/374,182
Granted
Jun 18, 2013
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 (10)

1. An artificial red blood cell comprising a substantially disc shaped, molded synthetic polymer particle having a largest linear dimension of between about 5 um to about 10 um and a modulus of less than about 1 MPa; and wherein the particle can pass through a tube having an inner diameter of less than about 3 um.

2. The artificial red blood cell of claim 1 , wherein said particle has a largest linear dimension of about 8 μm.

3. The artificial red blood cell of claim 1 , wherein said particle has a volume of about 98 μm 3 .

4. The artificial red blood cell of claim 1 , wherein said particle has a surface area of about 130 μm 2 .

5. The artificial red blood cell of claim 1 , wherein said particle is hydrophilic.

6. The artificial red blood cell of claim 1 , wherein said particle comprises poly(ethylene glycol).

7. The artificial red blood cell of claim 1 , wherein said particle comprises perfluoropolyether.

8. The artificial red blood cell of claim 1 , wherein said particle further comprises surface functionality selected from the group consisting of PEGylation, blood type antigens, and natural mimics.

9. The artificial red blood cell of claim 1 , wherein said particle further comprises a cargo selected from the group consisting of a therapeutic agent, hemoglobin, or an imaging agent.

10. The artificial red blood cell of claim 1 , wherein said particle further comprises a cargo and the cargo is capable of binding and releasing oxygen.

Assignments (3)
CONFIRMATORY LICENSE Recorded Aug 13, 2010
From: NORTH CAROLINA, UNIVERSITY OF
To: NAVY, SECRETARY OF THE UNITED STATES OF AMERICA OFFICE OF NAVAL RESEARCH
Reel/Frame 024851/0638 →
CONFIRMATORY LICENSE Recorded Dec 30, 2009
From: UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 023719/0990 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 16, 2009
From: NORTH CAROLINA STATE UNIVERSITY
To: THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL
Reel/Frame 022553/0744 →
Continuity (2)
Provisional Application 60833736 · Jul 27, 2006
Related Publication 20100028994A1 · Feb 4, 2010