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公开(公告)号：US20210040434A1
公开(公告)日：2021-02-11
申请号：US16977244
申请日：2019-05-02
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Alexi J. Young , Evan D. Brutinel , Patrick A. Mach , Adam J. Stanenas
Abstract: A selective microbial detection device and methods of use are provided. The device includes a water-proof pouch that includes a first wall portion, a second wall portion, and a porous membrane filter disposed in the pouch between the first and second wall portions. The filter membrane divides the pouch into first and second compartments. The microbial detection device also includes an effective amount of a dry nutrient disposed in the first compartment, which contains sodium lauryl sulfate in an amount of 1.75 milligrams or greater per twelve square inches of the first wall portion. A dry, cold water-soluble gelling agent is adhered to the pouch in the first compartment and an absorbent pad is disposed in the second compartment. A sealable sample port provides access to deposit a liquid into the first compartment.
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公开(公告)号：US11851643B2
公开(公告)日：2023-12-26
申请号：US16977244
申请日：2019-05-02
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Alexi J. Young , Evan D. Brutinel , Patrick A. Mach , Adam J. Stanenas
Abstract: A selective microbial detection device and methods of use are provided. The device includes a water-proof pouch that includes a first wall portion, a second wall portion, and a porous membrane filter disposed in the pouch between the first and second wall portions. The filter membrane divides the pouch into first and second compartments. The microbial detection device also includes an effective amount of a dry nutrient disposed in the first compartment, which contains sodium lauryl sulfate in an amount of 1.75 milligrams or greater per twelve square inches of the first wall portion. A dry, cold water-soluble gelling agent is adhered to the pouch in the first compartment and an absorbent pad is disposed in the second compartment. A sealable sample port provides access to deposit a liquid into the first compartment.
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Patent Agency Ranking
公开(公告)号：USD952137S1
公开(公告)日：2022-05-17
申请号：US29754643
申请日：2020-10-13
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
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公开(公告)号：US10808215B2
公开(公告)日：2020-10-20
申请号：US15503481
申请日：2015-08-19
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Evan D. Brutinel , Jason W. Bjork , Adam J. Stanenas
Abstract: The present disclosure provides a culture device for enumerating colonies of sulfate-reducing microorganisms. The device includes a body having a waterproof base, a waterproof coversheet attached to the base, and a growth compartment disposed therebetween. The growth compartment has a perimeter and an opening. A portion of the perimeter is defined by a waterproof seal. The portion can include >50% of the perimeter. Disposed in the growth compartment are a dry cold water-soluble gelling agent, a dry culture medium selected to facilitate growth of a sulfate-reducing bacterium or indicator reagent for detecting hydrogen sulfide production by a sulfate-reducing bacterium, and a dry first oxygen-scavenging reagent.
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公开(公告)号：US10723992B2
公开(公告)日：2020-07-28
申请号：US15569451
申请日：2016-04-26
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Jason W. Bjork , Evan D. Brutinel , Adam J. Stanenas
Abstract: The present disclosure provides a culture device for enumerating colonies of microorganisms. The device can comprise a base, a coversheet, and a nonporous spacer member disposed therebetween. The spacer member comprises an aperture that defines a growth compartment. At least one adhesive layer is adhered to the base or the coversheet in the growth compartment. A cold water-soluble gelling agent and an effective amount of a dry carbon dioxide-generating reagent are adhered to the at least one adhesive layer. The carbon dioxide-generating reagent consists essentially of particles having a diameter of less than 106 microns.
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16.发明授权公开(公告)号：US10344253B2
公开(公告)日：2019-07-09
申请号：US15519944
申请日：2015-11-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Evan D. Brutinel , Alexi J. Young , Adam J. Stanenas
Abstract: Devices for the propagation or storage of microorganisms are provided including a first layer that has a first portion of a surface of the first layer, to which a first water-swellable gelling agent comprising a first clay is affixed. The devices further include a second layer that is separable from the first layer and has a first portion of a surface of the second layer, to which a second water-swellable gelling agent is affixed. Methods for detecting and enumerating at least one microorganism in a sample are provided. The methods include providing a device, separating the first layer from the second layer, adding an aliquot of a sample containing at least one microorganism onto the first or second water-swellable gelling agent to form an inoculated device, laminating the first layer back to the second layer, and incubating the inoculated device. Kits and methods of making the devices are also provided.
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公开(公告)号：US20180273887A1
公开(公告)日：2018-09-27
申请号：US15763744
申请日：2016-09-27
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Evan D. Brutinel , Jason W. Bjork , Adam J. Stanenas
Abstract: In one aspect, the present disclosure provides a device. The device includes a body comprising a waterproof base, a waterproof coversheet attached to the base, and a channel disposed between the base and the coversheet. The channel has a perimeter and an opening that provides liquid access to the channel. A portion of the perimeter is defined by a waterproof seal. A dry first oxygen-scavenging reagent and an indicator reagent for detecting sulfate reduction by a sulfate-reducing bacterium are disposed in the device between the base and the coversheet. The waterproof base comprises a plurality of open microcompartment structures facing the coversheet.
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