Flexible plasma applicators based on fibrous layers

Patent metadata

Field	Value
Publication number	US-10646604-B2
Application number	US-201715425474-A
Country	US
Kind code	B2
Filing date	Feb 6, 2017
Priority date	Feb 4, 2016
Publication date	May 12, 2020
Grant date	May 12, 2020

Abstract

Disclosed herein are flexible plasma applicators based on fibrous layers that are capable of rapidly sanitizing a surface via either direct or indirect contact with said surface.

First claim

What is claimed is:

1. A plasma applicator consisting of a first substrate layer, a second substrate layer, and an adhesive layer;
wherein the first substrate layer and the second substrate layer are comprised of a fibrous base layer and a metallic surface layer,
wherein the adhesive layer binds the fibrous base layer of the first substrate layer to the fibrous base layer of the second substrate layer, wherein the metallic surface layer of the first substrate layer and the metallic surface layer of the second substrate layer is exposed, and
wherein the metallic surface layer of the first substrate layer and the metallic surface layer of the second substrate are configured to be placed in conductive contact with a high voltage source to generate dielectric barrier discharge (DBD) upon exposure to a high voltage source.

2. The plasma applicator of claim 1 , (a) wherein the first substrate layer comprises at least one polymer layer inserted between the fibrous base layer and the metallic surface layer of the first substrate layer; (b) wherein the second substrate layer comprises at least one polymer layer inserted between the fibrous base layer and the metallic surface layer of the second substrate layer; or (c) wherein the first substrate layer comprises at least one polymer layer inserted between the fibrous base layer and the metallic surface layer of the first substrate layer and wherein the second substrate layer comprises at least one polymer layer inserted between the fibrous base layer and the metallic surface layer of the second substrate layer.

3. The plasma applicator of claim 1 , wherein the first substrate layer is patterned.

4. The plasma applicator of claim 1 , wherein the fibrous base material of at least one of the first substrate layer and the second substrate layer comprises cellulose-based paper.

5. The plasma applicator of claim 4 , wherein the metallic surface layer of at least one of the first substrate layer and the second substrate layer comprises vacuum evaporated aluminum.

6. The plasma applicator of claim 5 , wherein at least one of the first substrate layer and the second substrate layer comprises metallized paper.

7. The plasma applicator of claim 1 , wherein the fiber base material of at least one of the first substrate layer and the second substrate layer is at least partially exposed.

8. The plasma applicator of claim 7 , wherein the plasma applicator is capable of generating both surface plasma and volume plasma.

9. A plasma applicator consisting of a first substrate layer, a second substrate layer, an adhesive layer, and a polymer coating layer,
wherein the first substrate layer and the second substrate layer are comprised of a fibrous base layer and a metallic surface layer,
wherein the adhesive layer binds the fibrous base layer of the first substrate layer to the fibrous base layer of the second substrate layer and wherein the polymer coating layer is applied to the metallic surface layer of at least one of the first substrate layer and the second substrate layer, and
wherein the metallic surface layer of the first substrate layer and the metallic surface layer of the second substrate are configured to be placed in conductive contact with a high voltage source to generate dielectric barrier discharge (DBD) upon exposure to a high voltage source.

10. A method of disinfecting a surface comprising directly contacting a surface with the plasma applicator of claim 1 .

11. A method of disinfecting a surface comprising indirectly contacting a surface with the plasma applicator of claim 1 .

12. The method of claim 11 , wherein the indirect contact occurs for ten seconds or less, and wherein at least 95% of contaminants are sanitized.

13. A capacitive touch-based interface incorporating the plasma applicator of claim 1 .

14. The method of claim 11 , wherein the indirect contact occurs for thirty seconds or less, and wherein at least 99% of contaminants are sanitized.

15. A handheld device comprising the plasma applicator of claim 1 , wherein the plasma applicator is in contact with a high voltage source.

16. The plasma applicator of claim 3 , wherein the first substrate layer is honeycomb patterned.

17. A package comprising the plasma applicator of claim 1 and a non-conductive spacer attached to an exposed surface of the plasma applicator which is adapted to be placed in contact with contents of said package, and wherein the plasma applicator is placed on an interior surface of the package.

18. The package of claim 17 containing conductive contacts on an exterior surface of the package.

19. A bandage comprising the plasma applicator of claim 1 and a non-conductive spacer on a surface of the plasma applicator which is adapted to be placed on skin tissue.

20. A disposable garment incorporating the plasma applicator of claim 1 .

Assignees

• Univ Rutgers
• Univ Florida

Inventors

• Mazzeo Aaron
• Xie Jingjin
• Chen Qiang
• Roy Subrata

Classifications

• A61L2/14 Primary

  Plasma, i.e. ionised gases · CPC title

• H05H1/2406

  using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes · CPC title

• A61L2202/24

  Human Necessities · mapped topic

• H05H2245/123

  Electricity · mapped topic

• H05H2245/125

  Electricity · mapped topic