Acoustic Particle Manipulation Along Three Orthogonal Directions in Laser Engraved Microfluidic Channels
Sprache des Vortragstitels:
Englisch
Original Tagungtitel:
2021 IEEE SENSORS Conference
Sprache des Tagungstitel:
Englisch
Original Kurzfassung:
Acoustofluidic particle manipulation in three
orthogonal directions was performed in simple and low-budget
microfluidic chips that were laser-engraved and laser-cut out of
polymethylmethacrylate sheets. Besides the focusing and
separation of particles orthogonal to the channel axis, which can
be used in so-called flow through separators, we were also able
to accumulate the particles at acoustic vibration nodes along the
channel axis and to lift them up in vertical direction in the same
experimental configuration. An application of the latter effect is
demonstrated, by considering particles that are slowly dragged
along the bottom of a microfluidic channel by the streaming
fluid and which move significantly faster as they are lifted
upwards.
Forschungs-