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    • 5. 发明申请
    • Rate measurements of biomolecular reactions using electrochemiluminescence
    • 使用电化学发光测量生物分子反应的速率
    • US20080057559A1
    • 2008-03-06
    • US11785511
    • 2007-04-18
    • Laurette NacamulliJonathan LelandStephanie Hayes
    • Laurette NacamulliJonathan LelandStephanie Hayes
    • C12N9/00G01N31/00
    • C12Q1/00G01N33/557G01N33/582
    • The rate of a biomolecular reaction, such as an enzymatic reaction or an affinity binding reaction, is measured using electrochemiluminescence (“ECL”). The reaction is conducted in an electrochemical cell with a mixture of reagents including a luminophore which will relate the concentration of a reactant, a reaction partner or the reaction product of a reaction partner to the ECL intensity. The reaction partner is a reagent which reacts with the reactant and which participates with the luminophore (or its reaction product participates with the luminophore) to cause the emission of ECL. The ECL intensity is modulated with a series of electrical pulses which are applied to the mixture of reagents at a preselected potential and for preselected intervals of time and duration. The ECL intensity is measured at the same intervals to provide a timed series of values (P). The same experiment is repeated except that the modulation is conducted after the reaction has gone to completion to obtain a timed series of values (C). The same experiment is repeated a third time in the absence of the reaction partner to obtain a times series of values (B). The results are normalized (N) using the following formula: N = P - B C - B ( I ) to obtain a series of values N which can be used to plot the time course (concentration vs. time) of the reaction.
    • 使用电化学发光(“ECL”)测量生物分子反应的速率,例如酶反应或亲和结合反应。 反应在具有包含发光体的试剂混合物的电化学电池中进行,其将反应物的浓度,反应配对物或反应物的反应产物与ECL强度相关联。 反应伴侣是与反应物反应并与发光体(或其反应产物与发光体一起参与)引起ECL的发射的试剂。 ECL强度用一系列电脉冲进行调制,这些电脉冲以预先选择的电位和预选的时间和持续时间间隔施加到试剂的混合物。 以相同的间隔测量ECL强度以提供定时的一系列值(P)。 重复相同的实验,除了在反应完成之后进行调制以获得定时系列值(C)。 在没有反应配偶体的情况下,第三次重复相同的实验以获得值(B)的时间序列。 使用以下公式对结果进行归一化(N): MI> N P C - B I 的值N可用于绘制反应的时间过程(浓度对时间)。