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DY: Fachverband Dynamik und Statistische Physik

DY 50: Focus Session: Controlling Microparticles and Biological Cells by Ultrasound (joint session BP/CPP/DY)

Donnerstag, 12. März 2026, 10:15–12:45, BAR/0106

Recently ultrasound has emerged as a very promising physical modality to control the behavior of microparticles and even of biological cells, which can be moved and stimulated by sound waves. For biological cells, one can further control the effect of sound through gene expression (sonogenetics), similar to the control by light (optogenetics). However, because the wavelength of sound is much larger than the one of light, one of the challenges is to localize the effect of sound waves, e.g. by using gas bubbles. Here, we bring together experimental and theoretical researchers who currently explore the potential of ultrasound to control active and passive microsystems and to develop new applications ranging from biomedicine to soft robotics.

Organized by Peer Fischer and Ulrich S. Schwarz (Heidelberg)

	10:15	DY 50.1	Hauptvortrag: Mechanogenetics for Cell ImmunoTherapy — •Yingxiao Wang
	10:45	DY 50.2	Shaping sound to tickle cells — •Dimitris Missirlis, Athanasios Athanassiadis, Rom Lerner, and Peer Fischer
	11:00	DY 50.3	A Theoretical Model for Ultrasound-Induced Intracellular Streaming — •Niels Gieseler, Falko Ziebert, and Ulrich S. Schwarz
	11:15		15 min. break
	11:30	DY 50.4	Hauptvortrag: Recent theoretical progress on sound-propelled microsystems — •Raphael Wittkowski
	12:00	DY 50.5	Rarefaction wave amplification from non-resonant deforming bubbles — Yuzhe Fan, Saber Izak Ghasemian, and •Claus-Dieter Ohl
	12:15	DY 50.6	Optimizing acoustically propelled microrobots using genetic algorithms — •Lennart Gevers and Raphael Wittkowski
	12:30	DY 50.7	Equations of motion for arbitrarily shaped acoustically propelled rigid microparticles — •Justus Schnermann and Raphael Wittkowski