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Methods for eradicating pathogens

A pathogen and eradication rate technology, applied in the field of eradicating bacteria in confined spaces, can solve the problem of not allowing far UV light to pass through

Pending Publication Date: 2022-06-07
SCHOTT AG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of these covers is therefore that they do not allow far-UV light to pass through, or at least a large amount of energy is necessary to ensure sufficient UV exposure of the surface to be treated, such as the skin to be treated

Method used

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  • Methods for eradicating pathogens
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[0217] An alkali silicate-containing glass having the glass composition described according to the present disclosure is obtained under reducing melting conditions. Samples with a thickness of 0.71 mm have been tested for transmittance in the wavelength range of 200 nm to 300 nm before and after irradiation with a HOK 4 lamp. The results are shown in image 3 middle.

[0218] In particular, with regard to the wavelengths λ=200 nm and λ=220 nm that are particularly relevant, the results obtained are summarized in the table below.

[0219] Transmittance before HOK 4 irradiation [%] Transmittance after HOK 4 irradiation [%] λ=200nm 0.2 0.2 λ=220nm 69.4 70.8

[0220] Glass has low transmittance at 200nm and high transmittance at 220nm. The transmittance at both 200 nm and 220 nm remained essentially unchanged after 144 hours of irradiation with the HOK4 lamp.

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Abstract

The present invention relates to a method for eradicating pathogens, in particular bacteria in confined spaces. The method includes using germicidal UV light at a wavelength of 220 nm, where the UV light is emitted by a UV lamp having a lamp cover made of 220 nm-UV transmissive glass. The present invention includes 220 nm-UV transmissive glasses, uses of such UV transmissive glasses, and methods of making the same.

Description

technical field [0001] The present invention relates to methods for eradicating pathogens, in particular to methods for eradicating bacteria in confined spaces. The method includes using germicidal UV light at a wavelength of 220 nm, wherein the UV light is emitted by a UV lamp having a lamp cover made of 220 nm-UV transmissive glass. The present invention includes a 220 nm-UV transmissive glass, uses of such UV transmissive glass, and a method for preparing the same. Background technique [0002] The most relevant pathogens are bacteria and viruses. Pathogens pose an ongoing threat to humans and livestock. A number of methods have been developed for eradicating pathogens, including eradication with light. The current SARS-CoV2 pandemic has increased the need for effective and specific means of pathogen clearance, especially viral clearance. [0003] Pathogens can become a major problem in hospitals, prisons and nursing homes, where people with open wounds, invasive devi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L2/10
CPCA61L2/10C03C4/0085A61L9/20C03C3/118C02F1/325C02F2201/3222Y02W10/37A61L2/0047A61L2202/11A61L2202/25C03C3/089A61L2/26C03C3/091C03C3/093C03C3/115C03C2204/00
Inventor M·格林R·E·艾希霍尔茨J·拉斯普A·彼得森斯K·梅格斯S·克鲁格T·法伊弗
Owner SCHOTT AG