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    Nanomaterial-based Bacterial Sensors
    1.
    发明申请
    Nanomaterial-based Bacterial Sensors 审中-公开

    公开(公告)号：US20200158642A1

    公开(公告)日：2020-05-21

    申请号：US16491960

    申请日：2018-03-27

    Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

    Inventor： Laura Sutarlie ,  Sian Yang Ow ,  Shilin Chen ,  Xiaodi Su

    IPC: G01N21/64 ,  G01N33/542 ,  G01N33/569 ,  G01N15/06 ,  G01N21/359

    Abstract: This invention relates to a sensor that detects bacteria cells comprising (a) a primary negatively charged, nanoparticulate sensing material; (b) a secondary positively charged, fluorescent sensing material; (c) a housing; and (d) at least one illuminator; wherein said housing contains said primary negatively charged, nanoparticulate sensing material, said secondary positively charged fluorescent sensing material and a sample potentially comprising bacteria in aqueous medium, wherein said illuminator provides light of at least one pre-specified wavelength λi to excite at least said secondary positively charged, fluorescent material, wherein said secondary positively charged, fluorescent material electrostatically attached to bacteria cells provides at least one fluorescent response at a second different wavelength λn wherein both i and n are integers, wherein said negatively charged, nanoparticulate sensing material electrostatically attached to said fluorescent material suppresses fluorescing of said fluorescent material at said second wavelength λn; and wherein said housing permits illumination of the contents of said housing by said illuminator and wherein said housing further permits the detection of a fluorescent response at a second wavelength λn. The negatively charged material includes (dsDNA coated) spherical AuNPs and graphene oxide (GO). The positively charged fluorescent material includes water soluble cationic conjugated polyelectrolytes (COPE) or positively charged peptide/polymer labeled with fluorescence dye. The sensor makes use of the FRET phenomenon between the primary and secondary sensing materials. The sensor allows making a distinction between living and dead bacteria and can measure the total bacteria count. A method for detecting bacteria utilizing the sensor is another part of the invention.

    POROUS METALLIC MEMBRANE
    2.
    发明申请
    POROUS METALLIC MEMBRANE 有权
    多孔金属膜

    公开(公告)号：US20150343390A1

    公开(公告)日：2015-12-03

    申请号：US14654768

    申请日：2013-12-23

    Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

    Inventor： Kambiz Ansari ,  Shilin Chen ,  Christina Yuan Ling Tan ,  Isabel Rodriguez

    IPC: B01D71/02 ,  B01D53/22 ,  B01D61/14 ,  B01D67/00 ,  B01D61/02

    CPC classification number: B01D71/022 ,  B01D53/228 ,  B01D61/025 ,  B01D61/145 ,  B01D67/0053 ,  B01D67/0062 ,  B01D67/0069 ,  B01D69/02 ,  B01D69/06 ,  B01D69/10 ,  B01D69/105 ,  B01D2325/021 ,  C25D1/08 ,  C25D3/12 ,  C25D5/003 ,  C25D5/022 ,  C25D7/123

    Abstract: The present disclosure relates to a method of forming a metallic layer having pores extending therethrough, the method comprising the steps of: (a) contacting a cathode substrate with an electrolyte solution comprising at least one cation; reducing the cation to deposit the metallic layer on a surface of the cathode substrate; and (c) generating a plurality of non-conductive regions on the cathode substrate surface during reducing step (b); wherein the deposition of the metallic layer is substantially prevented on the non-conductive regions on the cathode substrate surface to thereby form pores extending through the deposited metallic layer. The present disclosure further provides a metallic porous membrane fabricated by the disclosed process.

    Abstract translation: 本发明涉及一种形成具有延伸穿过其中的孔的金属层的方法，所述方法包括以下步骤：（a）使阴极基底与包含至少一种阳离子的电解质溶液接触; 减少阳极以将金属层沉积在阴极衬底的表面上; 和（c）在还原步骤（b）期间在阴极衬底表面上产生多个非导电区域; 其中基本上防止在阴极衬底表面上的非导电区域上金属层的沉积，从而形成延伸穿过沉积的金属层的孔。 本公开还提供了通过所公开的方法制造的金属多孔膜。

    CONDUCTIVE FIBROUS MATERIALS
    4.
    发明申请
    CONDUCTIVE FIBROUS MATERIALS 审中-公开
    导电纤维材料

    公开(公告)号：US20160111723A1

    公开(公告)日：2016-04-21

    申请号：US14890410

    申请日：2014-05-12

    Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

    Inventor： Xu Li ,  Chao Bin He ,  Suxi Wang ,  Siew Yee Wong ,  Shilin Chen

    IPC: H01M4/587 ,  D01D5/00 ,  H01M4/04 ,  D04H1/728 ,  D04H1/4242

    CPC classification number: H01M4/587 ,  D01D5/003 ,  D01F9/17 ,  D01F9/24 ,  D01F11/128 ,  D04H1/4242 ,  D04H1/728 ,  D10B2101/12 ,  D10B2101/122 ,  D10B2401/16 ,  H01M4/0471 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/364 ,  H01M4/622 ,  H01M2004/027

    Abstract: There is provided a conductive fibrous material comprising a plurality of carbonaceous fibers, wherein each carbonaceous fiber is fused to at least one other fiber. The carbonaceous fibers may be fused at fiber-to-fiber contact points by a polymer. The process of making the conductive fibrous material comprises mixing a phenolic polymer with a second polymer to form a polymer solution, preparing phenolic fibers having nano- or micro-scale diameters by electrospinning the polymer solution, and subsequent carbonization of the obtained phenolic fibers, thereby generating carbonaceous fibers, wherein each carbonaceous fiber is fused to at least one other fiber. The conductive fibrous material may be useful in electrode materials for energy storage devices.

    Abstract translation: 提供了包含多个碳质纤维的导电纤维材料，其中每个碳质纤维与至少一种其它纤维融合。 碳纤维可以通过聚合物在纤维 - 纤维接触点处熔融。 制造导电纤维材料的方法包括将酚类聚合物与第二聚合物混合以形成聚合物溶液，通过静电纺丝聚合物溶液制备具有纳米级或微尺度直径的酚醛纤维，并随后碳化得到的酚醛纤维 产生含碳纤维，其中每个碳质纤维与至少一种其它纤维融合。 导电纤维材料可用于储能装置的电极材料中。

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