Assay method and apparatus of immune reaction
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United States of America Patent
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Apr 10, 1990
Grant Date -
N/A
app pub date -
Jul 6, 1987
filing date -
Jul 4, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An immunoassay method and apparatus includes the vibration of beads within a cell, the beads having a complex of a substance conjugated with an enzyme as a marker on the surface thereof, and using an optical measurement device to quantatively determine the amount of the marker in the cell. The vibration is provided by including a magnetic material in the beads and causing a magnetic field to move within the cell. The vibrations have at least a component transverse to a measurement direction of the optical measurement device. The movement of the magnetic field in the cell is caused by the reciprocation of a bar having magnets thereon and in a position adjacent to the cell.
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