Method of non-contact micromanipulation using ultrasound
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United States of America Patent
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Nov 3, 1998
Grant Date -
N/A
app pub date -
Oct 2, 1996
filing date -
Jan 23, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of non-contact micromanipulation using ultrasound includes providing a concave ultrasound transducer in a liquid medium in which micro particles are distributed, positioning a reflector at the focal point position of the transducer and radiating ultrasound from the transducer to form a standing wave field between the transducer and the reflector to align and trap micro particles at half wavelength intervals along the axis of the transducer.
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