The invention relates to the use of one or more antimicrobial metals preferably selected from silver, gold, platinum, and palladium but most preferably silver, formed with atomic disorder, and preferably in a nanocrystalline form, for reducing inflammation or infection of the mucosal membrane. The a
The invention relates to the use of one or more antimicrobial metals preferably selected from silver, gold, platinum, and palladium but most preferably silver, formed with atomic disorder, and preferably in a nanocrystalline form, for reducing inflammation or infection of the mucosal membrane. The antimicrobial metal may be formulated as, or used in the form of, a nanocrystalline coating of one or more antimicrobial or noble metals, a nanocrystalline powder of one or more antimicrobial or noble metals, or a liquid or solution containing dissolved species from a nanocrystalline powder or coating of one or more antimicrobial or noble metals.
대표청구항▼
We claim: 1. A method of reducing inflammation or infection of a mucosal membrane, comprising: contacting an inflamed or infected problem area of the mucosal membrane with a therapeutically effective amount of one or more antimicrobial metals in nanocrystalline form to provide a localized anti-infl
We claim: 1. A method of reducing inflammation or infection of a mucosal membrane, comprising: contacting an inflamed or infected problem area of the mucosal membrane with a therapeutically effective amount of one or more antimicrobial metals in nanocrystalline form to provide a localized anti-inflammatory or antimicrobial effect, wherein the one or more antimicrobial metals are selected from the group consisting of silver, gold, platinum and palladium and characterized by sufficient atomic disorder so that the metal, in contact with an alcohol or water-based electrolyte, releases atoms, ions, molecules, or clusters of said metal on a sustainable basis and at a concentration sufficient to provide a localized anti-inflammatory or antimicrobial effect. 2. The method of claim 1, wherein the one or more antimicrobial metals provide a localized antimicrobial effect. 3. The method of claim 2, wherein the mucosal membrane is one or more of the oral cavity, the nasal, bronchial, pulmonary, trachea and pharynx airways, the otic and ophthalmic surfaces, the urogenital system, the reproductive system, and the gastrointestinal tract. 4. The method of claim 2, wherein the mucosal membrane is the oral cavity, the nasal, bronchial, pulmonary, trachea and pharynx airways, the urogenital system, the reproductive system, or the gastrointestinal tract. 5. The method of claim 2, wherein the mucosal membrane is the prostate, the colon or rectal surfaces. 6. The method of claim 1, wherein the antimicrobial metal is nanocrystalline silver. 7. The method of claim 1, wherein the antimicrobial metal is nanocrystalline silver, formed as a composite with oxygen. 8. The method of claim 1, wherein the antimicrobial metal is delivered as a powder, aerosol, spray, mist to the oral cavity, or to an area of the nasal, bronchial, pulmonary, trachea or pharynx airways to a respiratory disorder. 9. The method of claim 8, wherein the antimicrobial metal is nanocrystalline silver delivered as an aerosol, wherein the aerosol has a droplet size which is less than 10 μm, and wherein the concentration of silver in the aerosol is in the range of 40 to 500 μg/ml. 10. The method of claim 9, wherein the aerosol does not contain particulates sized larger than 2 μm. 11. The method of claim 10, wherein the aerosol does not contain particulates sized larger than 1 μm. 12. The method of claim 1, wherein the one or more antimicrobial metals are provided as a coating on, or filler in, a dressing, substrate or patch, or in a pharmaceutical composition with one or more pharmaceutically acceptable carriers suitable for application to the mucosal membrane. 13. The method of claim 12, wherein the pharmaceutical composition includes a nanocrystalline powder of the one or more antimicrobial metals, or a liquid containing dissolved species from a nanocrystalline powder or coating of the one or more antimicrobial metals. 14. The method of claim 13, wherein the pharmaceutical composition is a one or more of a gel, cream, lotion, paste, ointment, foam, suppository, lozenge, gum, tablet, capsule, or wafer containing the antimicrobial metal powder in an amount of 0.01-10% by weight, or one or more of a liquid formulated as a topical solution, aerosol, instillation, infusion, spray, mist, drops, syrup, elixir, mouth wash, or retention enema containing 0.001-10% by weight of the antimicrobial metal. 15. The method of claim 14, wherein the mucosal membrane is contacted to treat a respiratory disorder, a disease or condition of the oral cavity, a gastrointesinal disorder, a nasal disorder, or a disorder of the urogenital or reproductive system. 16. The method of claim 15, wherein the antimicrobial metal is nanocrystalline silver. 17. The method of claim 15, wherein the antimicrobial metal is silver, formed as a composite with oxygen. 18. The method of claim 12, wherein the dressing or pharmaceutical composition is fixed in place or occluded with an occlusive or semi-occlusive layer which maintains the dressing or composition in a moist condition. 19. The method of claim 12, wherein the one or more antimicrobial metals are provided in a hydrated or hydrocolloid-containing dressing, or in a pharmaceutical composition with one or more hydrocolloids. 20. The method of claim 19, wherein the hydrocolloid is one or more of cellulose and derivatives thereof, starch, glycogen, gelatin, pectin, alginate, chitosan, chitin, gum arabic, locust bean gum, karaya gum, gum tragacanth, ghatti gum, agar-agar, carrageenans, carob gum, guar gum, and xanthan gum. 21. The method of claim 20, wherein the hydrocolloid is one or more of carboxymethyl cellulose, alginate, pectin, and glyceryl polymethacrylate. 22. The method of claim 21, wherein the antimicrobial metal is nanocrystalline silver. 23. The method of claim 21, wherein the antimicrobial metal is nanocrystalline silver, formed as a composite with oxygen. 24. The method of claim 1, wherein the antimicrobial metal is in a powder form and is delivered directly to the mucosal membrane. 25. The method of claim 24, wherein the powder is sized with particulates no larger than 2 μm. 26. The method of claim 25, wherein the powder is sized with particulates no larger than 1 μm. 27. The method of claim 26, wherein the antimicrobial metal is nanocrystalline silver. 28. The method of claim 26, wherein the antimicrobial metal is nanocrystalline silver, formed as a composite with oxygen.
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