IP Library Granted Patent US 9,585,390
Granted Patent B2
US 9,585,390 · App. 13/813,750 · Granted Mar 7, 2017

Materials for disinfection produced by non-thermal plasma

Inventors: Gregory Fridman (Philadelphia, PA); Sin Park (Philadelphia, PA); Natalie Shainsky (Philadelphia, PA); Danil V. Dobrynin (Philadelphia, PA); Alexander Rabinovich (Cherry Hil, NJ); Gennady Friedman (Richboro, PA); Alexander Fridman (Philadelphia, PA); Moogega Cooper (Pasadena, CA); Ari D. Brooks (Cherry Hill, NJ); Suresh G. Joshi (Secane, PA); Alexander E. Poor (Philadelphia, PA); Utku K. Ercan (Philadelphia, PA); Mark Ingerman (Wynnewood, PA)
Assignee: Drexel University
A01N37/30A01N37/46A01N61/00A61L2/16
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Quick Facts
Patent No.
US 9,585,390
App. No.
13/813,750
Granted
Mar 7, 2017
Kind
B2
Abstract

Aspects of the present subject matter are directed to a method comprising contacting an fluid, optionally containing an added organic material, with a non-thermal plasma to form a disinfection composition, wherein the disinfection composition is a liquid, and contacting a surface with the disinfection composition, wherein the surface is at least partially disinfected upon contact with the disinfection composition. Additional aspects of the present subject matter are directed to a method comprising forming a disinfection composition by contacting an organic material with a non-thermal plasma, wherein the disinfection composition is a liquid. A further aspect of the present subject matter is directed to a disinfection composition comprising an organic material contacted by a non-thermal plasma, wherein the disinfection composition is a liquid.

Claims (18)

1. A method comprising:

contacting an aqueous composition, the aqueous composition being an aqueous gel or water containing an organic material comprising an amino acid, with a plasma to form a disinfection composition, wherein the plasma is a dielectric barrier discharge, a corona or pulsed corona discharge, arc, spark, gliding arc, radio frequency discharge, or microwave discharge plasma.

2. The method of claim 1 , wherein the aqueous composition is water, and the water is in the form of an aerosol or mist.

3. The method of claim 1 , wherein the aqueous composition is water, and the water contains a saline or phosphate buffer composition, or a combination thereof.

4. The method of claim 1 , wherein the aqueous composition is an aqueous gel, and the aqueous gel is an alginate gel.

5. The method of claim 1 , wherein the aqueous composition is water, and the organic material comprises N-Acetyl Cysteine.

6. The method of claim 1 , further comprising removing at least part of the water from the disinfection composition to form a dehydrated disinfection composition.

7. The method of claim 6 , further comprising reconstituting the dehydrated disinfection composition to form a reconstituted disinfection composition.

8. The method of claim 7 , further comprising the step of contacting the disinfection composition with a new surface, said surface being at least partially disinfected upon contact with the reconstituted disinfection composition.

9. The method of claim 1 , further comprising the step of contacting the disinfection composition with a surface, said surface being at least partially disinfected upon contact with the disinfection composition.

10. The method of claim 9 , wherein the surface comprises metal, plastic, glass, ceramic, a composite thereof, or a living tissue.

11. The method of claim 9 , wherein the surface is contacted with the disinfection composition remote from the plasma.

12. The method of claim 9 , wherein a period of time elapses between forming the disinfection composition and contacting the disinfection composition with the surface.

13. A disinfection composition prepared by the method of claim 1 , prepared by contacting the aqueous gel or water containing an organic material comprising an amino acid with a plasma, wherein the plasma is a dielectric barrier discharge, a corona or pulsed corona discharge, arc, spark, gliding arc, radio frequency discharge, or microwave discharge plasma, wherein the disinfection composition is capable of at least partially disinfecting a surface.

14. A composition prepared by the method of claim 6 .

15. The composition of claim 14 , wherein the dehydrated disinfection composition is a powder.

16. A composition wherein the composition of claim 14 is reconstituted to form a liquid, aerosol, or both.

17. A product containing the disinfection composition claim 13 , wherein the disinfection composition is provided on a woven or non-woven fabric.

Assignments (1)
MERGER Recorded Dec 17, 2014
From: PHILADELPHIA HEALTH & EDUCATION CORPORATION D/B/A DREXEL UNIVERSITY COLLEGE OF MEDICINE
To: DREXEL UNIVERSITY
Reel/Frame 034530/0596 →
Continuity (3)
Provisional Application 61370392 · Aug 3, 2010
Provisional Application 61370409 · Aug 3, 2010
Related Publication 20150038584A1 · Feb 5, 2015