HYDROGEL COMPOSITIONS BONDED TO POLYMERIC SUBSTRATES

    公开(公告)号:WO2018183098A1

    公开(公告)日:2018-10-04

    申请号:PCT/US2018/023914

    申请日:2018-03-23

    Abstract: Described herein is a hydrogel-containing multilayer article and methods of making, said hydrogel-containing multilayer article comprising: (i) a polymeric substrate comprising an abstractable atom; and (ii) a cured aqueous coating composition thereon wherein the coating composition comprises: (a) a hydrophilic monomer comprising a (meth)acrylamide, (meth)acrylate, and combinations thereof: (b) at least 2 wt% of a water-swellable clay; (c) a water-soluble type I photoinitiator; and (d) an acid or salt wherein a water insoluble type II photoinitiator is localized at the interface between the hydrogel coating and the polymeric substrate.

    MICROBIAL DETECTION DEVICES INCLUDING ADHESIVE MASKED NUTRIENTS AND METHODS OF USING THE SAME

    公开(公告)号:WO2018125805A1

    公开(公告)日:2018-07-05

    申请号:PCT/US2017/068213

    申请日:2017-12-22

    Abstract: Devices for microbial detection of microorganisms are provided including a body member including a substrate having a first major surface and a second major surface. The device further includes a substantially dry, first microbial growth nutrient composition disposed on a portion of the first major surface, a first adhesive composition adhered to the first microbial growth nutrient composition, and a cold-water-soluble first hydrogel-forming composition adhered to the first adhesive composition. The device also includes a cover sheet attached to the body member, where the cover sheet includes a first major surface facing the body member. Devices including a water-proof pouch are also provided. Methods for detecting and enumerating at least one microorganism in a sample are additionally provided, using the devices.

    HYDROGEL COMPOSITIONS BONDED TO POLYMERIC SUBSTRATES
    3.
    发明申请
    HYDROGEL COMPOSITIONS BONDED TO POLYMERIC SUBSTRATES 审中-公开
    粘合到聚合物基体上的水凝胶组合物

    公开(公告)号:WO2017058698A1

    公开(公告)日:2017-04-06

    申请号:PCT/US2016/053668

    申请日:2016-09-26

    Abstract: Described herein is a multilayer article comprising: a. a polymer substrate comprising an abstractable atom; and b. a hydrogel coating thereon wherein the hydrogel coating has a water content of at least 10 wt% and is covalently bonded to the polymer substrate, and wherein the hydrogel coating is derived from an aqueous composition having a pH less than 9.5, the aqueous composition comprising: (a) a hydrophilic monomer selected from at least one of (meth)acrylate or (meth)acrylamide; (b) at least 0.1 wt% of a water-swellable clay; (c) a first initiator, wherein the first initiator is water-soluble and is a Type I photoinitiator; and (d) a second initiator, wherein the initiator is water-soluble and is a Type II photoinitiator; and (e) an acid.

    Abstract translation: 本文描述的是多层制品,其包括:a。 包含可抽出原子的聚合物基材; 和b。 在其上的水凝胶涂层,其中所述水凝胶涂层具有至少10重量%的水含量并且共价键合到所述聚合物基材上,并且其中所述水凝胶涂层来自pH小于9.5的水性组合物,所述水性组合物包含: (a)选自(甲基)丙烯酸酯或(甲基)丙烯酰胺中的至少一种的亲水性单体; (b)至少0.1重量%的水溶胀性粘土; (c)第一引发剂,其中第一引发剂是水溶性的并且是I型光引发剂; 和(d)第二引发剂,其中引发剂是水溶性的并且是II型光引发剂; 和(e)酸。

    THIN-FILM CULTURE DEVICE FOR ENUMERATING MICROORGANISMS
    5.
    发明申请
    THIN-FILM CULTURE DEVICE FOR ENUMERATING MICROORGANISMS 审中-公开
    用于计算微生物的薄膜文化装置

    公开(公告)号:WO2017019345A1

    公开(公告)日:2017-02-02

    申请号:PCT/US2016/042712

    申请日:2016-07-18

    CPC classification number: C12Q1/04 C12M1/34 C12M23/26 C12M23/34 C12M41/36

    Abstract: A microbial detection device and methods of use are provided. The device comprises 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. 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.

    Abstract translation: 提供微生物检测装置和使用方法。 该装置包括防水袋,其包括设置在第一和第二壁部之间的袋中的第一壁部分,第二壁部分和多孔膜过滤器。 过滤膜将袋分成第一和第二隔室。 干燥的冷水溶性胶凝剂粘附到第一隔室中的袋子上,并且吸收垫设置在第二隔室中。 可密封的样品端口提供进入以将液体沉积到第一隔室中。

    DEVICE FOR GROWING MICROORGANISMS
    10.
    发明申请

    公开(公告)号:WO2020260984A1

    公开(公告)日:2020-12-30

    申请号:PCT/IB2020/055126

    申请日:2020-05-29

    Abstract: A device for growing microorganisms. The device includes a body member comprising a self-supporting, water-proof substrate having upper and lower surfaces; a hydrophobic spacer element adhered to the upper surface of the substrate forming side walls to retain a predetermined amount of liquid in contact with the substrate, wherein the hydrophobic spacer element has a hole therein; a fluid control film in the hole of the hydrophobic spacer element; a cover sheet having an inner-facing surface and an outer-facing surface, the cover sheet adhered to at least a portion of the body member; and a substantially dry, first microbial growth nutrient composition disposed on a portion of the inner surface of the cover sheet; a first adhesive composition adhered to the first microbial growth nutrient composition; and a cold-water-soluble first hydrogel-forming composition adhered to the first adhesive composition.

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