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 …

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 …

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 …

Eukaryotic cells face the challenging task of transporting a variety of particles through the
complex intracellular milieu in order to deliver, distribute, and mix the many components that …

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 …

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 …

A ubiquitous observation in cell biology is that the diffusive motion of macromolecules and
organelles is anomalous, and a description simply based on the conventional diffusion …

Molecular transport in living systems regulates numerous processes underlying biological
function. Although many cellular components exhibit anomalous diffusion, only recently has …

The diffusivity of macromolecules in the cytoplasm of eukaryotic cells varies over orders of
magnitude and dictates the kinetics of cellular processes. However, a general description …

A living cell's interior is one of the most complex and intrinsically dynamic systems, providing
an elaborate interplay between cytosolic crowding and ATP-driven motion that controls …