Method for constructing a fluidic driver for use with microfluidic circuits as a pump and mixer
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United States of America Patent
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May 27, 2003
Issued Date -
N/A
app pub date -
Jun 23, 2000
filing date -
Apr 16, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The fluidic drive for miniature acoustic-fluidic pump and mixer is comprised of an acoustic transducer attached to an exterior or interior of a fluidic circuit or reservoir. The transducer converts radio frequency electrical energy into an ultrasonic acoustic wave in a fluid that in turn generates directed fluid motion through the effect of acoustic streaming. Acoustic streaming results due to the absorption of the acoustic energy in the fluid itself. This absorption results in a radiation pressure and acoustic streaming in the direction of propagation of the acoustic propagation or what is termed 'quartz wind'.
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