Certain disclosed embodiments of the present invention concern the synthesis, derivatization, conjugation to immunoglobulins and signal amplification based on discrete, relatively short polymers having plural reactive functional groups that react with plural molecules of interest. Reactive functional groups, such as hydrazides, may be derivatized with a variety of detectable labels, particularly haptens. The remaining reactive functional groups may be conjugated directly to a specific binding molecule, such as to the oxidized carbohydrate of the Fc region of the antibody. Disclosed conjugates display large signal amplification as compared to those based on molecules derivatized with single haptens, and are useful for assay methods, particularly multiplexed assays.
本发明公开的某些实施方案涉及基于离散的、相对较短的聚合物的合成、衍生化、与免疫球蛋白的连接和信号放大,这些聚合物具有多个活性官能团,可与多个相关分子发生反应。反应性官能团(如酰
肼)可与各种可检测的标签(尤其是触媒)进行衍生。其余的活性官能团可直接与特定的结合分子(如
抗体 Fc 区的氧化
碳水化合物)连接。与基于单一触价素衍生的分子相比,所公开的共轭物显示出较大的信号放大率,适用于检测方法,特别是多重检测。