6 papers
Enhancement and Suppression of Active Particle Movement Due to Membrane Deformations
Adam Hitin Bialus, Bhargav Rallabandi, Naomi Oppenheimer
Microswimmers and active colloids often move in confined systems, including those involving interfaces. Such interfaces, especially at the microscale, may deform in response to the…
Dynamical Spreading and Memory Retention Under Power Law Potential
Ido Fanto, Yuval Rosenblum, Ori Harel +2
We study the overdamped dynamic spreading of a suspension of particles under a repulsive power law potential. We predict that the suspension spreads in a self-similar form, with it…
Hydrodynamics of molecular rotors in lipid membranes
Vinny C. Suja, Naomi Oppenheimer, Howard A. Stone
Molecular rotors form twisted conformations upon photoexcitation, with their fluorescent relaxation time serving as a measure of viscosity. They have been used to assess membrane v…
Vortex Flows and Streamline Topology in Curved Biological Membranes
Rickmoy Samanta, Naomi Oppenheimer
When considering flows in biological membranes, they are usually treated as flat, though more often than not, they are curved surfaces, even extremely curved, as in the case of the…
Fast crystallization of rotating membrane proteins
Naomi Oppenheimer, David B. Stein, Michael J. Shelley
We examine the interactions between actively rotating proteins moving in a membrane. Experimental evidence suggests that such rotor proteins, like the ATP synthases of the inner mi…
Surfing its own wave: hydroelasticity of a particle near a membrane
Bhargav Rallabandi, Naomi Oppenheimer, Matan Yah Ben Zion +1
We show using theory and experiments that a small particle moving along an elastic membrane through a viscous fluid is repelled from the membrane due to hydro-elastic forces. The v…