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Antimicrobial articles and methods of use thereof

A technology of products and oxides, applied in medical science, absorbent pads, bandages, etc.

Active Publication Date: 2021-07-20
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

They must be periodically reapplied to account for this

Method used

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  • Antimicrobial articles and methods of use thereof
  • Antimicrobial articles and methods of use thereof
  • Antimicrobial articles and methods of use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0049] 1. A product comprising:

[0050] closed layer;

[0051] a substrate covering the closure layer, wherein the substrate has two opposing major surfaces;

[0052] a metal oxide layer covering the substrate, wherein the metal oxide layer comprises a metal oxide, and wherein the metal oxide layer comprises less than 40% by weight of a non-oxidized metal; and

[0053] a metal layer overlying the metal oxide layer.

[0054] 2. The article of embodiment 1, wherein the metal layer adjoins the metal oxide layer.

[0055] 3. The article of any one of embodiments 1 to 2, wherein the metal layer is discontinuous or patterned.

[0056] 4. The article of embodiment 1, wherein the metal oxide layer is in direct contact with one opposing major surface of the substrate and the metal layer is in direct contact with the other opposing major surface of the substrate.

[0057] 5. The article of any one of embodiments 1 to 4, wherein the substrate is an absorbent substrate selected from ...

Embodiment 1-3 and comparative example 1

[0095] Silver was deposited on urethane aerospace foam using the sputtering process described above at a pressure of 5 mTorr. Coat PP netting with copper, magnesium or zinc according to the method described above. Netting with and without metal coating was laminated to silver-coated aerospace foam using 3M Super 77 Multipurpose Adhesive. Microcurrent and log reduction characteristics were measured and recorded in Table 1.

[0096]

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Abstract

The present invention provides an article having an antimicrobial effect. The article comprises a closure layer; a substrate covering the closure layer, wherein the substrate has two opposing major surfaces; a metal oxide layer covering the substrate, wherein the metal oxide layer comprises a metal oxide layer and wherein the metal oxide layer comprises less than 40% by weight non-oxidized metal; and a metal layer overlying the metal oxide layer.

Description

Background technique [0001] The risk of infection by medical devices is particularly high in the medical field. Antimicrobial articles or coatings are widely used in the medical world to prevent / reduce infection. For example, medical devices used by physicians, including orthopedic needles, compression plates and implants, wound dressings, etc. must be constantly protected against infection. Metal ions with antimicrobial properties such as Ag, Au, Pt, Pd, Ir, Cu, Sn, Sb, Bi and Zn are used as antimicrobial compounds. Among these metal ions, silver is known for its good biological activity. Various silver salts, complexes, and colloids have been used to prevent and control infection. Contents of the invention [0002] Although soluble salts of silver are currently used to prevent microbial infection, they do not provide long-term release of silver ions due to loss through removal or complexation of free silver ions. They must be reapplied periodically to correct this prob...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L15/18A61L15/42A61L15/46
CPCA61L15/18A61L15/42A61L15/46A61L2300/102A61L2300/104A61L2300/404A61L2300/602A61L15/425A61L15/58A61L15/60
Inventor 余大华多内·德米尔戈兹刘军钪巴德理·维尔拉哈万纳里纳·Y·斯捷潘诺娃
Owner 3M INNOVATIVE PROPERTIES CO
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