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    Conversion and purification of biomass
    1.
    发明授权
    Conversion and purification of biomass 有权

    公开(公告)号：US10167267B2

    公开(公告)日：2019-01-01

    申请号：US15023668

    申请日：2014-09-17

    Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

    Inventor： Guangshun Yi ,  Yugen Zhang

    IPC: C07D307/02 ,  C07D307/68 ,  B01J23/52 ,  C07D307/48 ,  B01J37/03 ,  B01J23/00 ,  B01J23/66 ,  B01J35/00

    Abstract: The present invention relates to a method for synthesizing an optionally substituted furoic acid by dehydrating a biomass and oxidizing the optionally substituted furan derived from the dehydration reaction. Water extraction has been incorporated as a step between the dehydration and the oxidation in order to purify the intermediate optionally substituted furan before having it oxidized. Prior to this water extraction, the organic solvent used for dehydration may be separated by evaporation. The provision of the water extraction allows impurities to be separated from the intermediate optionally substituted furan.

    SYNTHESIS OF A SUBSTITUTED FURAN
    4.
    发明申请
    SYNTHESIS OF A SUBSTITUTED FURAN 审中-公开
    一个取代的FURAN的合成

    公开(公告)号：US20160122450A1

    公开(公告)日：2016-05-05

    申请号：US14890052

    申请日：2014-05-06

    Applicant: Agency for Science, Technology and Research

    Inventor： Yugen Zhang ,  Siew Ping Teong ,  Guangshun Yi

    IPC: C08F114/14 ,  C07D307/50

    CPC classification number: C08F114/14 ,  C07D307/46 ,  C07D307/50 ,  C08F8/30 ,  C08F8/32 ,  C08F8/44 ,  C08F112/14

    Abstract: The present invention provides a polymer comprising an aliphatic backbone having a plurality of aromatic rings bonded thereon, said plurality of aromatic rings comprising a first aromatic ring type that has an alkyl halide group substitution on the aromatic ring and a second aromatic ring type that has an optionally substituted ammonium halide group substitution on the aromatic ring. The present invention also provides a method for making an optionally substituted furan, the method comprising the step of subjecting a sugar to a dehydration reaction in the presence of a catalyst comprising said polymer.

    Abstract translation: 本发明提供一种包含脂肪族主链的聚合物，所述脂族主链具有多个键合在其上的芳环，所述多个芳环包含在芳香环上具有烷基卤基取代的第一芳香环型和具有芳香环的第二芳环型 在芳香环上任选取代的卤化铵基取代基。 本发明还提供了制备任选取代的呋喃的方法，所述方法包括在含有所述聚合物的催化剂存在下使糖进行脱水反应的步骤。

    Cell rupture-based antimicrobial surfaces coated with metal oxide nano-arrays
    5.
    发明授权
    Cell rupture-based antimicrobial surfaces coated with metal oxide nano-arrays 有权

    公开(公告)号：US11154054B2

    公开(公告)日：2021-10-26

    申请号：US16335239

    申请日：2017-09-19

    Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

    Inventor： Yugen Zhang ,  Guangshun Yi

    IPC: A01N25/26 ,  A01N59/16 ,  C09D5/14 ,  C09D7/61 ,  A01N59/20 ,  C09D7/40 ,  C09D7/62 ,  B82Y30/00 ,  C08K3/22 ,  C08K3/20

    Abstract: The present disclosure relates to an antimicrobial coating on a surface, a method for preparing and uses of the same. In particular it relates to a process for preparing an antimicrobial coating on a surface, the process comprising the steps of: a) providing a surface; b) coating a metal oxide or a metal hydroxide on the surface in the presence of a solvent in a hydrothermal synthesis step to form a coated surface having a plurality of nanostructures; c) optionally drying the coated surface, wherein said nanostructure is preferably in nanopillar structure. The coating of the present application exhibits excellent antimicrobial activity against different types of microorganism, such as bacteria and yeast. The nanostructures are able to exert stress to the microorganism, and therefore controlling or killing them.

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