Antimicrobial preventive netting
Inventors
Chen, James • Clark, Tanner • Lendvay, Thomas
Assignees
WASHINGTON, University of • University of Washington • Seattle Children's Hospital
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Publication Number
US-11425905-B2
Publication Date
2022-08-30
Expiration Date
Abstract
An antimicrobial preventive netting is disclosed that includes one or more photosensitizers that are capable of generating a cloud of singlet oxygen on each surface and openings through the netting in response to incident light. A depth of the singlet oxygen cloud may be less than 0.7 centimeters from a netting surface. The netting may be supported by screens, enclosures or headgear. The netting can be made by dipping or soaking the netting in a solution of one or more photosensitizers.
Core Innovation
The invention relates to antimicrobial preventive netting that includes a plurality of openings between a top surface and a bottom surface. Photosensitizers are distributed on the top surface, the bottom surface and through the plurality of openings, and generate a cloud of singlet oxygen on the netting in response to incident light.
The photosensitizers include methylene blue, erythrosine, and riboflavin. The amount of methylene blue is less than an amount of erythrosine or an amount of riboflavin, and a ratio of methylene blue to erythrosine to riboflavin is 1:2:2.
A related aspect is a method of making the antimicrobial preventive netting by placing the netting within a container having a body defining a cavity and adding a solution of photosensitizers inside the cavity. The container is rotated to enable the solution of the photosensitizers to be deposited on each surface of the netting while producing antimicrobial preventive netting that includes the plurality of openings between the top surface and the bottom surface.
Claims Coverage
The partial content includes two independent claims: an antimicrobial preventive netting composition claim and a method of making antimicrobial preventive netting claim. Across these independent claims, the main inventive features include four features.
Antimicrobial preventive netting with singlet oxygen cloud in response to incident light
Antimicrobial preventive netting having a plurality of openings between a top surface and a bottom surface, and photosensitizers distributed on the top surface, the bottom surface and through the plurality of openings that generate a cloud of singlet oxygen on the netting in response to incident light.
Photosensitizer combination with methylene blue less than erythrosine or riboflavin and a 1:2:2 ratio
Photosensitizers include methylene blue, erythrosine, and riboflavin, wherein the amount of methylene blue is less than an amount of erythrosine or an amount of riboflavin, and wherein a ratio of methylene blue to erythrosine to riboflavin is 1:2:2.
Manufacturing by depositing photosensitizers through rotation within a container cavity
A method of making antimicrobial preventive netting by placing the netting within a container having a body defining a cavity; adding a solution of photosensitizers inside the cavity of the container; and rotating the container to enable the solution of the photosensitizers to be deposited on each surface of the netting.
Photosensitizer distribution on both surfaces and through the openings
The photosensitizers are distributed on the top surface, the bottom surface and through the plurality of openings to generate a cloud of singlet oxygen on the netting in response to incident light.
Across the independent claims, the coverage centers on antimicrobial preventive netting with openings from a top surface to a bottom surface, photosensitizers distributed on and through the openings, and the generation of a cloud of singlet oxygen on the netting in response to incident light using a specified methylene blue/erythrosine/riboflavin composition with methylene blue less than erythrosine or riboflavin and a 1:2:2 ratio.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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