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- Irwin M. Zaid, JÃ¶rn Dunkel, Julia M. Yeomans
- Journal of the Royal Society, Interface
- 2011

Swimming micro-organisms rely on effective mixing strategies to achieve efficient nutrient influx. Recent experiments, probing the mixing capability of unicellular biflagellates, revealed thatâ€¦ (More)

- Aleksei V. Chechkin, Irwin M. Zaid, Michael A. Lomholt, I. M. Sokolov, Ralf Metzler
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2012

We consider the effective surface motion of a particle that intermittently unbinds from a planar surface and performs bulk excursions. Based on a random-walk approach, we derive the diffusionâ€¦ (More)

- Aleksei V. Chechkin, Irwin M. Zaid, Michael A. Lomholt, I. M. Sokolov, Ralf Metzler
- The Journal of chemical physics
- 2011

In many biological and small scale technological applications particles may transiently bind to a cylindrical surface. In between two binding events the particles diffuse in the bulk, thus producingâ€¦ (More)

- orn Dunkel, Victor B. Putz, Irwin M. Zaid, Julia M. Yeomans
- 2010

Understanding the stochastic dynamics of tracer particles in active fluids is important for identifying the physical properties of flow generating objects such as colloids, bacteria or algae. Here,â€¦ (More)

- Aleksei V. Chechkin, Irwin M. Zaid, Michael A. Lomholt, I. M. Sokolov, Ralf Metzler
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2009

We consider the effective motion along a cylinder of a particle that freely diffuses in the bulk and intermittently binds to the cylinder. From an exact approach we derive the different regimes ofâ€¦ (More)

- Irwin M. Zaid, Michael A. Lomholt, Ralf Metzler
- Biophysical journal
- 2009

Under molecular crowding conditions, biopolymers have been reported to subdiffuse, (r(2)(t)) approximately = t(alpha), with 0 <alpha < 1. Here we study the exchange dynamics of such a subdiffusingâ€¦ (More)

- Michael A. Lomholt, Irwin M. Zaid, Ralf Metzler
- Physical review letters
- 2007

We derive the boundary condition for a subdiffusive particle interacting with a reactive boundary with a finite reaction rate. Molecular crowding conditions, that are found to cause subdiffusion ofâ€¦ (More)

- Takashi Kurihara, Msato Aridome, Heev Ayade, Irwin M. Zaid, Daisuke Mizuno
- Physical review. E
- 2017

We investigate the hydrodynamic fluctuations in suspensions of swimming microorganisms (Chlamydomonas) by observing the probe particles dispersed in the media. Short-term fluctuations of probeâ€¦ (More)

- Irwin M. Zaid, Daisuke Mizuno
- Physical review letters
- 2016

Nature is full of power-law interactions, e.g., gravity, electrostatics, and hydrodynamics. When sources of such fields are randomly distributed in space, the superposed interaction, which is what weâ€¦ (More)

- JÃ¶rn Dunkel, Irwin M. Zaid
- Physical review. E, Statistical, nonlinear, andâ€¦
- 2009

Small organisms (e.g., bacteria) and artificial microswimmers move due to a combination of active swimming and passive Brownian motion. Considering a simplified linear three-sphere swimmer, we studyâ€¦ (More)