Reading devices and assay devices for use therewith
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United States of America Patent
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May 22, 2001
Grant Date -
N/A
app pub date -
May 14, 1998
filing date -
Nov 12, 1993
priority date (Note) -
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Abstract
An assay result reader, for use in conjunction with an assay device comprising a porous liquid-permeable carrier in the form of a strip or sheet through the thickness of which electromagnetic radiation is transmissible, the carrier including a detection zone in which an assay result is revealed by specific binding of a detectable material directly or indirectly to a binding agent immobilized in the detection zone, detection of the detectable material being effected by determining the extent to which electromagnetic radiation transmitted through the thickness of said carrier is attenuated by the presence of the detectable material bound in the detection zone.
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