申请人:Wu Yinqiu
公开号:US20070087383A1
公开(公告)日:2007-04-19
The invention provides a method for detecting a hapten in a sample comprising the steps of: a) providing a sample potentially containing the hapten; b) providing a pre-determined amount of a first moiety, said first moiety being bound to a signaller and separated therefrom by a first linker, which first moiety is either: i) a binding partner that specifically binds to the hapten of interest, or ii) the hapten of interest or an analogue thereof; wherein said signaller is a macromolecule or a nanoparticle providing high mass signal; c) providing a flow of a) and b) separately or together to an immobilised second moiety, said second moiety being bound to the surface of a sensor and separated therefrom by a second linker, which second moiety is either: i) a binding partner that specifically binds to the hapten of interest, or ii) is the hapten of interest or an analogue thereof, providing that when the first moiety is a binding partner, the second moiety is a hapten or hapten analogue and when the first moiety is a hapten or hapten analogue, the second moiety is a binding partner; and d) detecting the amount of first moiety bound to second moiety.
本发明提供了一种检测样品中半抗原的方法,包括以下步骤:a)提供可能含有半抗原的样品;b)提供预定量的第一分子,该第一分子与信号物质结合,并由第一连接物与其分离,该第一分子可以是:i)特异性结合到所需半抗原的结合伴侣,或者ii)所需半抗原或其类似物;其中,所述信号物质是提供高质量信号的大分子或纳米粒子;c)分别或同时提供a)和b)的流动到固定化的第二分子,该第二分子与传感器表面结合,并由第二连接物与其分离,该第二分子可以是:i)特异性结合到所需半抗原的结合伴侣,或者ii)所需半抗原或其类似物,当第一分子是结合伴侣时,第二分子是半抗原或半抗原类似物,当第一分子是半抗原或半抗原类似物时,第二分子是结合伴侣;d)检测绑定到第二分子的第一分子的量。