Magnetizable bead detector

Details Magnetizable bead detector Magnetizable bead detector

2005-04-05

2005-04-05

Chin, Christopher L. (Department: 1641)

Chemistry: analytical and immunological testing

Involving an insoluble carrier for immobilizing immunochemicals

C436S526000, C436S534000, C436S169000, C435S007100, C435S004000, C435S017000, C435S090000, C435S091200, C422S068100, C422S069000, C422S082010, C422S082020, C422S082030, C422S186000, C422S050000, C204S416000, C204S417000, C204S400000, C204S403060, C324S252000, C324S260000, C324S261000, C324S262000, C360S313000, C360S314000, C360S316000, C360S324000, C365S158000, C365S173000, C365S171000

Reexamination Certificate

active

06875621

ABSTRACT:
A ferromagnetic thin-film based magnetic field detection system used for detecting the presence of selected molecular species. A magnetic field sensor supported on a substrate has a binding molecule layer positioned on a side thereof capable of selectively binding to the selected molecular species. The magnetic field sensor can be substantially covered by an electrical insulating layer having a recess therein adjacent to the sensor in which the binding molecule layer is provided. An electrical interconnection conductor can be supported on the substrate at least in part between the sensor and the substrate, and is electrically connected to the sensor. The magnetic field sensor can be provided in a bridge circuit, and can be formed by a number of interconnected individual sensors. A polymeric channel and reservoir structure base is provided for the system.

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