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    • 8. 发明申请
    • DEVICE FOR DETECTING AN ANALYTE
    • 用于检测分析仪的装置
    • US20140119995A1
    • 2014-05-01
    • US14110033
    • 2012-04-05
    • Steve RossJulie RichardsTim Carter
    • Steve RossJulie RichardsTim Carter
    • G01N33/53
    • G01N33/54373G01N21/171G01N21/6428G01N29/022G01N33/5302G01N33/542G01N33/582G01N2021/6439G01N2201/062G01N2291/02433G01N2291/0255G01N2291/0256
    • This invention relates to a device for detecting an analyte in a sample comprising: a radiation source adapted to generate a series of pulses of electromagnetic radiation; a transducer having a pyroelectric or piezoelectric element and electrodes which is capable of transducing energy generated by non-radiative decay into an electrical signal; a detector which is capable of detecting the electrical signal generated by the transducer; a first reagent proximal to the transducer, the first reagent having a binding site which is capable of binding a labelled reagent proportionally to the concentration of the analyte in the sample, which labelled reagent being capable of absorbing the electromagnetic radiation generated by the radiation source to generate energy by non-radiative decay; a second reagent proximal to the transducer, the second reagent having a lower affinity for the labelled reagent under the conditions of the assay than the first reagent; and a third reagent proximal to the transducer, the third reagent having a binding site which is capable of binding the labelled reagent, wherein the third reagent has an affinity for the labelled reagent which is less influenced than the first reagent by the concentration of the analyte or the complex or derivative of the analyte.
    • 本发明涉及一种用于检测样品中分析物的装置,包括:辐射源,适于产生一系列电磁辐射脉冲; 具有热电或压电元件的传感器和能够将由非辐射衰减产生的能量转换成电信号的电极; 检测器,其能够检测由换能器产生的电信号; 靠近换能器的第一试剂,第一试剂具有结合位点,其能够将标记的试剂与样品中分析物的浓度成比例地结合,该标记试剂能够吸收由辐射源产生的电磁辐射, 通过非辐射衰减产生能量; 靠近换能器的第二试剂,所述第二试剂在所述测定条件下对所述标记试剂的亲和力低于所述第一试剂; 以及靠近所述换能器的第三试剂,所述第三试剂具有能够结合所述标记试剂的结合位点,其中所述第三试剂对所述标记试剂具有亲和性,所述试剂比所述第一试剂的浓度受到分析物的浓度影响小 或分析物的复合物或衍生物。