IP Library Granted Patent US 10,293,080
Granted Patent B2
US 10,293,080 · App. 15/725,213 · Granted May 21, 2019

Ionic liquids that sterilize and prevent biofilm formation in skin wound healing devices

Inventors: Robert Kellar (Flagstaff, AZ); Nathan Christopher Nieto (Flagstaff, AZ); Andrew Koppisch (Flagstaff, AZ); Rico Del Sesto (St. George, UT)
Assignees: The Arizona Board of Regents on Behalf of Northern Arizona University; Dixie State University
A61L26/0038A61K9/0014A61K31/14A61K31/20A61K38/39A61L15/32A61L15/44A61L26/0033A61L26/0042D01D5/003D01F1/103A61L2300/404D01D5/0015
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Quick Facts
Patent No.
US 10,293,080
App. No.
15/725,213
Granted
May 21, 2019
Kind
B2
Abstract

Compositions for enhancing wound healing are disclosed herein. Also disclosed are methods of making the compositions and methods of using the compositions for the prevention of biofilm formation and for the inhibition of pathogen growth and proliferation.

Claims (27)

1. An electrospun wound care composition, comprising:

an ionic liquid (IL), wherein the ionic liquid is choline geranate (CAGE), and wherein the ionic liquid is present in an amount of about 0.01% w/w to about 99% w/w; and

a protein solution comprising gelatin,

wherein the ionic liquid is electrospun with the protein solution.

2. The wound care composition of claim 1 , wherein the wound care composition is incorporated with or impregnated into or coated onto a wound dressing, a bandage, a gauze, a patch, a pad, tape, or a wrap.

3. The wound care composition of claim 1 , wherein the ionic liquid is present in an amount of about 40% w/w.

4. The wound care composition of claim 1 , wherein the protein solution further comprises collagen, albumin, casein, fibrin, fibroin, keratin, elastin, tropoelastin, or combinations thereof.

5. The wound care composition of claim 1 , wherein the protein solution is present in an amount of about 1% w/v to about 20% w/v.

6. The wound care composition of claim 1 , wherein the protein solution is present in an amount of about 10% w/v.

7. The wound care composition of claim 1 , comprising about 0.2% w/w choline geranate (CAGE) and about 10% w/v gelatin.

8. A wound dressing comprising:

a wound care composition of claim 1 ; and

a wound dressing material.

9. The wound dressing of claim 8 , wherein the wound dressing material is a bandage, a wipe, a sponge, a mesh, a dressing, a gauze, a patch, a pad, tape, or a wrap.

10. The wound dressing of claim 8 , wherein the wound care composition is present in an amount of about 0.005% v/w to about 2% v/w.

11. The wound dressing of claim 8 , wherein the wound care composition is present in an amount of about 0.625% v/w.

12. The wound dressing of claim 8 , wherein the wound care composition is incorporated into or coated onto or impregnated with the wound dressing material.

13. A method of making the wound care composition according to claim 1 comprising an ionic liquid (IL) and a protein solution, the method comprising: providing a protein solution comprising gelatin; providing an ionic liquid, wherein the ionic liquid is choline geranate (CAGE); mixing the ionic liquid with the protein solution; and electrospinning the mixture of ionic liquid and protein solution.

14. The method of claim 13 , wherein the protein solution comprises collagen, albumin, casein, fibrin, fibroin, keratin, elastin, tropoelastin, or combinations thereof in a solvent.

15. The method of claim 14 , wherein the solvent is the ionic liquid or an organic solvent.

16. The method of claim 15 , wherein the organic solvent is hexafluoro-2-propanol (HFIP).

17. The method of claim 13 , wherein the mixing is performed at a temperature of about 5° C. to about 100° C.

18. The method of claim 13 , wherein the electrospinning is performed at a temperature of about 5° C. to about 100° C.

19. The method of claim 13 , wherein the electrospinning is performed at a voltage of about 10V to about 50V.

20. The method of claim 13 , wherein the electro spinning is performed at a flow rate of about 0.1 mL/hr to about 5 mL/hr.

21. The method of claim 13 , wherein the electro spinning is performed at a flow rate of about 1 mL/hr.

22. The method of claim 13 , further comprising desiccating the electrospun material to dryness.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 16, 2022
From: DEL SESTO, RICO
To: DIXIE STATE UNIVERSITY
Reel/Frame 059917/0621 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 16, 2018
From: KELLAR, ROBERT S.; KOPPISCH, ANDREW T.; NIETO, NATHAN C.
To: ARIZONA BOARD OF REGENTS ON BEHALF OF NORTHERN ARIZONA UNIVERSITY
Reel/Frame 044953/0702 →
Continuity (2)
Provisional Application 62404369 · Oct 5, 2016
Related Publication 20180093011A1 · Apr 5, 2018
Cited By (1)
US 12,208,069