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    • 16. 发明申请
    • LABELLED ARTICLES AND USES THEREOF
    • 标签文章及其用途
    • WO2003030129A2
    • 2003-04-10
    • PCT/EP2002/010816
    • 2002-09-26
    • UCB, S.A.REGAN, ChristopherWANING, Richard
    • REGAN, ChristopherWANING, Richard
    • G09F
    • G07D7/14B01J2219/00378B01J2219/00497B01J2219/005B01J2219/00572B01J2219/00574B01J2219/00576B01J2219/00648B01J2219/00722B01J2219/00725B42D25/29C12Q1/6813G07F7/08G07F7/086G07F7/12C12Q2563/185
    • There is described a process for labeling an article and/or document for authentication purposes. The article or document (such as BOPP and/or cellulose film) incorporates therein particles having a taggant bound to the surface thereof. The preferred taggant is a DNA strand of at least eight (preferably 25) base pairs long attached to inorganic particles by the addition reaction between an acrylate group and a polar group such as amino or hydroxy. Alternatively silica particles can be modified by reacting first with aminopropyltriethoxy silane and then a reagent selected from: a diacid with a polyethylene glycol spacer group (e.g. polyethylene glycol dicarboxymethyl) succinic anhydride; and/or a diisothiocyanate (e.g. 1,4-phenylene diisothiocyanate (PDITC)) to form functional silica particles capable of reacting directly with a terminal amide and/or hydroxy group of an oligonucleotide such as DNA. The tagged particles can be detected by use of a fluorescent probe which hybridises with the DNA sequence selected tag the article or document.
    • 描述了用于为了认证目的而标记物品和/或文档的过程。 物品或文件(例如BOPP和/或纤维素膜)在其中掺入具有与其表面结合的标签的颗粒。 优选的标记物是通过丙烯酸酯基和极性基团如氨基或羟基之间的加成反应长期连接到无机颗粒上的至少八个(优选25个)碱基对的DNA链。 或者,二氧化硅颗粒可以首先与氨基丙基三乙氧基硅烷反应,然后与选自以下的试剂进行改性:二元酸与聚乙二醇间隔基(例如聚乙二醇二羧甲基)琥珀酸酐; 和/或二异硫氰酸酯(例如1,4-亚苯基二异硫氰酸酯(PDITC)),以形成能够直接与寡核苷酸例如DNA的末端酰胺和/或羟基反应的官能二氧化硅颗粒。 可以通过使用荧光探针检测标记的颗粒,所述荧光探针与选择的DNA序列杂交标记物品或文件。