The cellular cytoskeleton is a fascinating active network, in which Brownian motion is
intercepted by distinct phases of active transport. We present a time-resolved statistical …

We study the motion of a probe driven by microtubule-associated motors within a living
eukaryotic cell. The measured mean square displacement,< x (t) 2> of engulfed 2 and 3 μ m …

Spontaneous directed motion, a hallmark of cell biology, is unusual in classical statistical
physics. Here we study, using both numerical and analytical methods, organized motion in …

We show that within a living eukaryotic cell, mean square displacement of an engulfed
microsphere shows enhanced diffusion scaling as t 3/2 at short times, with a clear crossover …

We introduce the totally asymmetric simple exclusion process with Langmuir kinetics on a
network as a microscopic model for active motor protein transport on the cytoskeleton …

Random motion within the cytoplasm gives rise to molecular diffusion; this motion is
essential to many biological processes. However, in addition to thermal Brownian motion …

All substances exhibit constant random motion at the microscopic scale. This is a direct
consequence of thermal agitation, and leads to diffusion of molecules and small particles in …

The cell cytoskeleton is a striking example of an 'active'medium driven out-of-equilibrium by
ATP hydrolysis. Such activity has been shown to have a spectacular impact on the …

Cell migration paths are generally described as random walks, associated with both intrinsic
and extrinsic noise. However, complex cell locomotion is not merely related to such …

Random walks of molecular motors, which bind to and unbind from cytoskeletal filaments,
are studied theoretically. The bound and unbound motors undergo directed and nondirected …