IP Library Granted Patent US 8,414,879
Granted Patent B2
US 8,414,879 · App. 12/464,340 · Granted Apr 9, 2013

Superporous hydrogel with cells encapsulated therein and method for producing the same

Inventor: Richard A. Gemeinhart (Chesterton, IN)
Assignee: The Board of Trustees of the University of Illinois
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,414,879
App. No.
12/464,340
Granted
Apr 9, 2013
Kind
B2
Abstract

The present invention is a superporous hydrogel with cells encapsulated within the hydrogel matrix, and a method for producing the same.

Claims (11)

1. A superporous hydrogel matrix produced by combining cells with a hydrogel precursor solution and initiator; and adding a chemical foaming agent, or compressed air or nitrogen, so that a superporous hydrogel having an average pore size of 10 to 3000 μm and a porosity of 50 to 90% is produced, wherein said superporous hydrogel matrix has cells encapsulated therein.

2. The superporous hydrogel matrix of claim 1 , wherein the matrix comprises a synthetic hydrophilic polymer.

3. The superporous hydrogel matrix of claim 2 , wherein the synthetic hydrophilic polymer is poly(ethylene glycol) diacrylate.

4. The superporous hydrogel matrix of claim 1 , wherein the matrix comprises a foam stabilizer.

5. The superporous hydrogel matrix of claim 4 , wherein the foam stabilizer comprises a (poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) tri-block copolymer.

6. The superporous hydrogel matrix of claim 1 , further comprising a cross-linked hydrophilic agent.

7. The superporous hydrogel matrix of claim 6 , wherein the cross-linked hydrophilic agent is selected from the group of sodium alginate, pectin, chitosan, and (polyvinyl) alcohol.

8. The superporous hydrogel matrix of claim 1 , further comprising a cell adhesive molecule.

9. The superporous hydrogel matrix of claim 8 , wherein the cell adhesive molecule is selected from the group of fibronectin, laminin, vitronectin, and integrin binding peptide.

10. The superporous hydrogel matrix of claim 1 , further comprising one or more therapeutic agents.

11. The superporous hydrogel matrix of claim 1 , further comprising cells within the hydrogel pores.

Assignments (2)
CONFIRMATORY LICENSE Recorded Mar 29, 2019
From: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
To: NIH
Reel/Frame 048747/0492 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 8, 2009
From: GEMEINHART, RICHARD A.
To: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
Reel/Frame 022790/0913 →
Continuity (2)
Provisional Application 61054624 · May 20, 2008
Related Publication 20090291115A1 · Nov 26, 2009