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    • 75. 发明授权
    • Multilayer microfiltration membrane
    • US08840791B2
    • 2014-09-23
    • US13224002
    • 2011-09-01
    • I-Fan WangRichard MorrisXuemei Liang
    • I-Fan WangRichard MorrisXuemei Liang
    • B01D61/00B01D39/14B01D39/00B01D67/00B01D69/02B01D69/06B01D69/12B01D71/68B01D61/14
    • B01D67/0013B01D61/147B01D67/0016B01D69/02B01D69/06B01D69/12B01D71/68B01D2325/02B01D2325/022B01D2325/023
    • A microfiltration membrane comprising (a) an asymmetric layer, (b) an isometric layer, and (c) an interface layer between the asymmetric layer and the isometric layer, the interface layer having a first portion contacting the asymmetric layer and a second portion contacting the isometric layer; wherein, (i) the asymmetric layer has a region contacting the first portion of the interface layer, the region including cells having a first porous structure; (ii) the isometric layer has a region contacting the second portion of the interface layer, the region including cells having a second porous structure; the first porous structure being larger than the second porous structure; and the first portion of the interface layer comprises cells having the first porous structure, and the second portion of the interface layer comprises cells having the second porous structure, and methods of making and using the membrane, are disclosed. Also disclosed is a microfiltration membrane comprising (a) a first asymmetric layer, (b) a second asymmetric layer, and (c) an interface layer between the first asymmetric layer and the second asymmetric layer, the interface layer having a first portion contacting the first asymmetric layer and a second portion contacting the second asymmetric layer; wherein, (i) the first asymmetric layer has a region contacting the first portion of the interface layer, the region including cells having a first porous structure; (ii) the second asymmetric layer has a region contacting the second portion of the interface layer, the region including cells having a second porous structure; the first porous structure being larger than the second porous structure; and the first portion of the interface layer comprises cells having the first porous structure, and the second portion of the interface layer comprises cells having the second porous structure, as well as methods of making and using the membrane.
    • 78. 发明申请
    • GRAPHENE OXIDE FILTERS AND METHODS OF USE
    • 石墨氧化物过滤器及其使用方法
    • US20140199777A2
    • 2014-07-17
    • US13940612
    • 2013-07-12
    • University of Dayton
    • Oscar N. RuizK.A. Shiral FernandoChristopher E. Bunker
    • B01D39/00
    • B01D39/00B01D23/14B01D39/1692B01D71/021B01D2239/0407B01D2239/0442B01D2239/0478B01D2325/48C02F1/281Y10T436/25
    • A system and device for filtering fluids using graphene oxide (GO) is provided. GO-based filters may be used for the efficient removal of microorganisms from organic and aqueous liquids and may be used to prevent fuel biodeterioration. Functionalization of graphene oxide with reactive oxygen functional groups provides physical properties to the GO including high solubility in polar solvents, good colloidal properties, low production costs, low toxicity, and a large surface area which can be decorated with antimicrobial agents including nanosilver. GO may be used as a filtration media for efficient removal of bacteria and to remove small amounts of water from hydrocarbon fuels. The GO filter media may be made of a plurality of GO particles, a structural core coated with GO, a non-porous structural membrane coated with GO, or a filtering membrane coated with GO. A method for sampling impurities found in an environmental sample is also provided.
    • 提供了一种使用氧化石墨烯(GO)过滤流体的系统和装置。 基于GO的过滤器可用于从有机和含水液体中有效地除去微生物,并可用于防止燃料生物学改变。 具有活性氧官能团的氧化石墨烯的官能化为GO提供物理性质,包括在极性溶剂中的高溶解度,良好的胶体性质,低生产成本,低毒性,以及可用包括纳米银在内的抗微生物剂进行装饰的大表面积。 GO可用作有效去除细菌并从碳氢燃料中除去少量水的过滤介质。 GO过滤介质可以由多个GO颗粒,涂覆有GO的结构芯,涂覆有GO的无孔结构膜或涂覆有GO的过滤膜制成。 还提供了在环境样品中发现的杂质的取样方法。
    • 80. 发明授权
    • Method and apparatus for sterilizing and disinfecting air and surfaces and protecting a zone from external microbial contamination
    • 消毒和消毒空气和表面以及保护区域免受外部微生物污染的方法和设备
    • US08753575B2
    • 2014-06-17
    • US11831667
    • 2007-07-31
    • S. Edward Neister
    • S. Edward Neister
    • A62B1/08B01D39/00B01D41/00B01D46/00B01D49/00B01D50/00B01D53/14B01D51/00
    • A61L2/10A23B7/015A23L3/28A61L2/0011A61L9/20B08B17/00
    • This invention relates to a method, process and apparatus for disinfecting and sterilizing all types of surfaces contaminated with microorganisms and toxic substances to render both inactive. Furthermore, this invention relates to both a method and apparatus for disinfecting and/or sterilizing breathable air and then using this air to protect a confined space from external contamination. The apparatus consists of a new ultra-violet (NUV) source that is more effective than mercury based 254 nm light for destroying DNA of virus, bacteria, spores and cists. It is most effective in breaking chemical bonds in toxic gases and Biotoxins that are useful to terrorists. It is combined with other apparatus that remove particulates and byproducts sometimes produced by the NUV source and maintains positive pressure of the confined space so as to prevent the influx of air from outside the protected zone.
    • 本发明涉及对被微生物和有毒物质污染的所有类型的表面进行消毒和杀菌的方法,方法和设备,以使其不起作用。 此外,本发明涉及用于对透气空气进行消毒和/或灭菌的方法和装置,然后使用这种空气来保护密闭空间免受外部污染。 该装置由新的紫外线(NUV)源组成,比基于汞的254nm光更有效地破坏病毒,细菌,孢子​​和细菌的DNA。 最有效地打破对恐怖分子有用的有毒气体和生物毒素的化学键。 它与其他装置组合,去除有时由NUV源产生的微粒和副产品,并保持密闭空间的正压,以防止空气从受保护区域外部流出。