Assay device having controllable sample size
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United States of America Patent
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Jul 14, 2020
Grant Date -
Jul 25, 2013
app pub date -
Jan 18, 2013
filing date -
Jan 20, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed is an assay device which comprises a liquid sample addition zone, a reagent zone, a detection zone, and a wicking zone, all defining a fluid flow path. The device further comprises a reagent addition zone along and in fluid communication with the fluid flow path downstream of the sample addition zone and upstream of the detection zone. An interrupting wash is added at this reagent addition zone in accordance with the method of the subject invention to control sample volume. The interrupting wash fluid is added at a predetermined fill volume on the chip device and also serves to wash the detection channel and fill the remaining chip volume.
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