IP Library Granted Patent US 11,707,554
Granted Patent B2
US 11,707,554 · App. 16/857,778 · Granted Jul 25, 2023

Cartilage mimetic gels

Inventors: Melissa A. Grunlan (College Station, TX); Anna Kristen Means (College Station, TX)
Assignee: The Texas A&M University System
A61L27/52A61L27/26A61L27/34A61L27/56C08J3/075C08J7/0427C08L33/26A61L2430/06C08J2333/26C08J2433/26C08J2479/02C08L2203/02C08L2312/00
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Quick Facts
Patent No.
US 11,707,554
App. No.
16/857,778
Granted
Jul 25, 2023
Kind
B2
Abstract

A cartilage mimetic gel includes double network hydrogels. The double network hydrogels comprise a first crosslinked network and a second crosslinked network. The first crosslinked network can be formed from poly(2-acrylamido-2-methylpropane sulfonic acid). The second crosslinked network can be formed from poly(N-isopropyl acrylamide-co-acrylamide).

Claims (22)

1. A cartilage mimetic gel comprising:

double network hydrogels,

wherein the double network hydrogels comprise a first crosslinked network formed from poly(2-acrylamido-2-methylpropane sulfonic acid) and a second crosslinked network.

2. The cartilage mimetic gel of claim 1 , wherein the second crosslinked network is formed from poly(N-isopropyl acrylamide-co-acrylamide).

3. The cartilage mimetic gel of claim 1 , wherein at least one of the first crosslinked network and the second crosslinked network comprises a comonomer.

4. The cartilage mimetic gel of claim 1 , wherein the double network hydrogels comprise a comonomer selected from the group consisting of a zwitterionic comonomer, a hydrophilic comonomer, a neutral comonomer, an anionic comonomer, a cationic comonomer, or combinations thereof.

5. The cartilage mimetic gel of claim 1 , further comprising a third crosslinked network that comprises at least one of a zwitterionic comonomer, a hydrophilic comonomer, a neutral comonomer, an anionic comonomer, a cationic comonomer, or combinations thereof.

6. The cartilage mimetic gel of claim 1 , wherein the double network hydrogels are porated.

7. The cartilage mimetic gel of claim 1 , wherein the double network hydrogels are coated with polydopamine.

8. The cartilage mimetic gel of claim 1 , wherein the double network hydrogels combined with an anchoring base.

9. The cartilage mimetic gel of claim 8 , wherein the anchoring base is at least one of a regenerative polymeric scaffold, a metal, a ceramic, and an alloy.

10. A cartilage mimetic gel comprising:

double network hydrogels,

wherein the double network hydrogels comprise a first crosslinked network formed from poly(N-isopropyl acrylamide-co-acrylamide) and a second crosslinked network.

11. The cartilage mimetic gel of claim 10 , wherein the second crosslinked network is formed from poly(2-acrylamido-2-methylpropane sulfonic acid).

12. The cartilage mimetic gel of claim 10 , wherein at least one of the first crosslinked network and the second crosslinked network comprises a comonomer.

13. The cartilage mimetic gel of claim 10 , wherein the double network hydrogels comprise a comonomer selected from the group consisting of a zwitterionic comonomer, a hydrophilic comonomer, a neutral comonomer, an anionic comonomer, a cationic comonomer, or combinations thereof.

14. The cartilage mimetic gel of claim 10 , further comprising a third crosslinked network that comprises at least one of a zwitterionic comonomer, a hydrophilic comonomer, a neutral comonomer, an anionic comonomer, a cationic comonomer, or combinations thereof.

15. The cartilage mimetic gel of claim 10 , wherein the double network hydrogels are porated.

16. The cartilage mimetic gel of claim 10 , wherein the double network hydrogels are coated with polydopamine.

17. The cartilage mimetic gel of claim 10 , wherein the double network hydrogels combined with an anchoring base.

18. The cartilage mimetic gel of claim 17 , wherein the anchoring base is at least one of a regenerative polymeric scaffold, a metal, a ceramic, and an alloy.

Assignments (3)
CONFIRMATORY LICENSE Recorded Oct 30, 2023
From: TEXAS ENGINEERING EXPERIMENT STATION
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 065394/0086 →
CONFIRMATORY LICENSE Recorded Sep 20, 2022
From: TEXAS ENGINEERING EXPERIMENT STATION
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 061477/0267 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 23, 2020
From: GRUNLAN, MELISSA A.; MEANS, ANNA KRISTEN
To: THE TEXAS A&M UNIVERSITY SYSTEM
Reel/Frame 054443/0366 →
Continuity (2)
Provisional Application 62838131 · Apr 24, 2019
Related Publication 20200338236A1 · Oct 29, 2020