申请人:National Research Development Corporation
公开号:US04562157A1
公开(公告)日:1985-12-31
A device useful in diagnostics in which a biochemical species is attached to the surface of a sensor, especially to the gate of a field effect transistor. In such a "BIOCHEMFET" it has been a problem to attach two or more biochemical species to the surface of the sensor, especially to the gates of a multi-gated FET. It has now been found possible to bond a group having a photoactivatable function covalently to the sensor surface, photo-expose the resultant modified surface selectively, e.g. through a mask, and bond the biochemical species, e.g. a hapten, antigen, antibody, lectin or enzyme, to the photoactivated function. In this way the biochemical species becomes attached in selected areas only. In view of the success of this technique realized under conditions of miniaturization, the invention makes possible "printed circuits for proteins". In addition to the device are the process of manufacture thereto, use for diagnostic purposes and a diagnostic kit of the device and a partner capable of binding to the biochemical species.
这是一种在诊断中有用的设备,其中生化物种附着在传感器的表面,特别是场效应晶体管的栅极上。在这样的“生化晶体管”中,一个问题是如何将两个或更多的生化物种附着在传感器的表面上,特别是多栅晶体管的栅极上。现在已经发现可以共价地将具有光致活性功能的基团粘结到传感器表面上,通过光照选择性地照射改性后的表面,例如通过掩蔽板,并将生化物种(例如半抗原、抗原、抗体、凝集素或酶)粘结到光致活性基团上。通过这种方式,生化物种仅附着在选择性的区域内。鉴于这种技术在微型化条件下的成功,该发明使“蛋白质印刷电路”成为可能。除了设备外,还有制造该设备的过程,以及用于诊断目的的诊断工具包和能够与生化物种结合的伴侣。