115 citations · 1.1k across the 49 of their papers we have counts for
6 papers · 1 filter
Snapping elastic disks as microswimmers: swimming at low Reynolds numbers by shape hysteresis
Christian Wischnewski, Jan Kierfeld
We illustrate a concept for shape-changing microswimmers, which exploits the hysteresis of a shape transition of an elastic object, by an elastic disk undergoing cyclic localized s…
From diffusive mass transfer in Stokes flow to low Reynolds number Marangoni boats
Hendrik Ender, Jan Kierfeld
We present a theory for the self-propulsion of symmetric, half spherical Marangoni boats (soap or camphor boats) at low Reynolds numbers. Propulsion is generated by release (diffus…
Surfactant-loaded capsules as Marangoni microswimmers at the air-water interface: Symmetry breaking and spontaneous propulsion by surfactant diffusion and advection
Hendrik Ender, Ann-Kathrin Froin, Heinz Rehage +1
We present a realization of a fast interfacial Marangoni microswimmer by a half-spherical alginate capsule at the air-water interface, which diffusively releases water-soluble spre…
Chaining of hard disks in nematic needles: particle-based simulation of colloidal interactions in liquid crystals
David Müller, Tobias A. Kampmann, Jan Kierfeld
Colloidal particles suspended in liquid crystals can exhibit various effective anisotropic interactions that can be tuned and utilized in self-assembly processes. We simulate a two…
Pendant Drop Tensiometry: A Machine Learning Approach
Felix Kratz, Jan Kierfeld
Modern pendant drop tensiometry relies on numerical solution of the Young-Laplace equation and allow to determine the surface tension from a single picture of a pendant drop with h…
Bistability and oscillations in cooperative microtubule and kinetochore dynamics in the mitotic spindle
Felix Schwietert, Jan Kierfeld
In the mitotic spindle microtubules attach to kinetochores via catch bonds during metaphase, and microtubule depolymerization forces give rise to stochastic chromosome oscillations…