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    • 6. 发明申请
    • DETECTION OF SURFACE-BOUND MAGNETIC PARTICLES
    • 表面磁性颗粒的检测
    • WO2013064990A1
    • 2013-05-10
    • PCT/IB2012/056044
    • 2012-10-31
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.
    • VAN ZON, Joannes Baptist Adrianus DionisiusVAN LIESHOUT, Ron Martinus Laurentius
    • G01N21/55
    • G01N33/543G01N21/552G01N27/745
    • The invention relates to a method and a sensor device (100) for the detection of magnetic particles (1) bound to the binding surface (111) of a sample chamber (112), wherein said detection is made during and/or immediately after the action of an attractive magnetic field. Preferably, the attractive magnetic field (B) is preceded by a repulsive magnetic field (B) which removes unbound magnetic particles away from the binding surface (111). Due to the attractive magnetic field (B), bound magnetic particles (1) come closer to the binding surface (111), which increases the signal of surface specific detection techniques like frustrated total internal reflection. A further enhancement of the signal can be achieved by an attractive magnetic field that is parallel to the binding surface (111), thus inducing the generation of chains between unbound and bound magnetic particles.
    • 本发明涉及一种用于检测结合到样品室(112)的结合表面(111)的磁性颗粒(1)的方法和传感器装置(100),其中所述检测是在和/或之后 有吸引力的磁场的作用。 优选地,吸引磁场(B)之前是排斥磁场(B),其将未结合的磁性颗粒从结合表面(111)移除。 由于有吸引力的磁场(B),结合的磁性颗粒(1)更靠近结合表面(111),这增加了表面特异性检测技术的信号,如沮丧的全内反射。 可以通过平行于结合表面(111)的有吸引力的磁场来实现信号的进一步增强,从而诱导在未结合和结合的磁性颗粒之间产生链。