Inactivation of gram-positive bacteria
US-10953117-B2 · Mar 23, 2021 · US
Inactivation of gram-positive bacteria
US11730838B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11730838-B2 |
| Application number | US-202117178155-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 17, 2021 |
| Priority date | Jul 29, 2005 |
| Publication date | Aug 22, 2023 |
| Grant date | Aug 22, 2023 |
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Abstract
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A method for inactivating medically important Gram-positive bacteria including Methicillin-resistant Staphylococcus aureus (MRSA), Coagulase-Negative Staphylococcus (CONS), Streptococcus, Enterococcus and Clostridium species, comprising exposure to visible light, and in particular light within the wavelength range 400-500 nm.
First claim
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The invention claimed is: 1. A method for disinfecting air, contact surfaces, or materials by inactivating bacteria from one or more pathogenic Gram-positive bacterial species in the air, on the contact surfaces, or on the materials, said method comprising exposing the one or more pathogenic Gram-positive bacterial species to white light containing blue light without using a photosensitizer, wherein the one or more pathogenic Gram-positive bacterial species comprise Enterococcus species, wherein at least a portion of the blue light that inactivates the one or more Gram-positive bacterial species consists of wavelengths in the range of 400-500 nm, and wherein the method is performed outside the human body, and the contact surfaces or the materials are non-living. 2. The method of claim 1 , wherein the portion of the blue light that inactivates the one or more Gram-positive bacterial species consists of wavelengths in the range 400-450 nm. 3. The method of claim 1 , wherein the portion of the blue light that inactivates the one or more Gram-positive bacterial species consists of wavelengths in the range 400-420 nm. 4. The method of claim 1 , wherein the portion of the blue light that inactivates the one or more Gram-positive bacterial species has a wavelength of about 405 nm. 5. The method of claim 4 , wherein the portion of blue light that inactivates the one or more Gram-positive bacterial species is supplied from a light source comprising an LED. 6. The method of claim 1 , wherein the portion of blue light that inactivates the one or more Gram-positive bacterial species is supplied from a light source comprising an LED. 7. The method of claim 6 , wherein the light source is an LED array.
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- What does patent US11730838B2 cover?
- A method for inactivating medically important Gram-positive bacteria including Methicillin-resistant Staphylococcus aureus (MRSA), Coagulase-Negative Staphylococcus (CONS), Streptococcus, Enterococcus and Clostridium species, comprising exposure to visible light, and in particular light within the wavelength range 400-500 nm.
- Who is the assignee on this patent?
- Univ Strathclyde
- What technology area does this patent fall under?
- Primary CPC classification A61L2/084. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Aug 22 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).