Per Augustsson: Moving Cells by Sound
Place: Kemicentrum, Lecture hall F
Contact: peter [dot] jonsson [at] fkem1 [dot] lu [dot] se
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Dr Per Augustsson, Biomedical Engineering, Lund University will give a lecture.
List of topics:
- Acoustic biophysical size-independent gating
- Acoustic size-separation of sub-micron particles
- Packing blood cells by sound
Sound carries energy and exerts forces on fluids and suspended objects through scattering and attenuation. Acoustophoresis, where microscopic particles are separated while flowing through a transverse acoustic standing wave field, have received an increased interest in the biomedical field. I study ultrasound-induced (re)-organization of miscible liquids of inhomogeneous density and compressibility inside microfluidic acoustic standing wave resonators. I will present how such systems enables size-independent separation and biophysical gating of cells based on their acoustic scattering properties. I will describe how flow-laminated inhomogeneous media can be employed to achieve flow-through acoustic separation of sub-micrometer particles and how blood cells become densely packed when whole blood is exposed to ultrasound.