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    • 7. 发明申请
    • METHODS, MEANS AND KITS FOR DETECTING SCARCE ANALYTES
    • 用于检测分析分析的方法,手段和试剂盒
    • WO2013095137A3
    • 2013-11-07
    • PCT/NL2012050910
    • 2012-12-21
    • UNIV GRONINGEN
    • HERRMANN ANDREASPRUSTY DEEPAK KUMAR
    • G01N33/542C12Q1/68
    • C12Q1/6816G01N33/542C12Q2545/113C12Q2545/114C12Q2563/125C12Q2563/131C12Q2565/101C12Q2565/601C12Q2565/627
    • The invention relates methods, means and kits for detecting and quantitation of chemical and biological analytes using catalytic signal amplification. Provided are methods, kits, and reagents for detecting a target molecule or interacting target molecules in a sample based on catalytic signal amplification, comprising the steps of (i) providing at least a first non-fluorescent and a second non-fluorescent probe capable of binding to distinct binding sites on the target molecule(s), the first probe being provided with a first ligand and the second probe being provided with a second ligand, wherein the first and second ligand can form a catalytic complex in the presence of a catalytic compound and wherein the catalytic complex can catalyze a chromogenic reaction; (ii) contacting a sample known or suspected to contain the target molecule(s) with said at least a first and second non-fluorescent probe under conditions that allow for binding of the probes to the target molecule(s) such that, upon binding of the probes to the target molecule(s), the first and second ligand are brought in close proximity of each other and together with the catalytic compound form a catalytic complex immobilized on the target molecule(s); and (iii) detecting the formation of the catalytic complex based on a non-enzymatic conversion of a water- soluble precursor dye into a chromophoric reporter dye.
    • 本发明涉及使用催化信号放大来检测和定量化学和生物分析物的方法,手段和试剂盒。 本发明提供了方法,试剂盒,以及用于检测的目标分子或基于催化信号扩增样品中的相互作用的目标分子,包括(i)的步骤:提供至少第一非荧光和第二非荧光探针能够试剂 结合靶的分子(或多个)上独特的结合位点,所述第一探针被设置有第一配体和所述第二探针被设置有第二配体,其中第一和第二配体可以形成在催化的存在下,催化络合物 化合物,并且其中催化复合物可以催化显色反应; (ⅱ)接触已知或怀疑的样品以包含与所述靶标分子(S)的至少第一和第二非荧光探针,其允许对靶标分子(多个)的探针的结合的条件下,使得在结合 探针与目标分子的相互作用,第一和第二配体彼此靠近并与催化化合物一起形成固定在靶分子上的催化复合物; 和(iii)基于水溶性前体染料的非酶促转化为发色报道染料来检测催化复合物的形成。