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 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 …

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 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 …

The cellular cytoplasm is a complex, heterogeneous environment (both spatially and
temporally) that exhibits viscoelastic behavior. To further develop our quantitative insight into …

The crowded intracellular environment poses a formidable challenge to experimental and
theoretical analyses of intracellular transport mechanisms. Our measurements of single …

Recent experiments carried out in the dense cytoplasm of living cells have highlighted the
importance of proteome composition and nonspecific intermolecular interactions in …

We discuss a quantitative influence of macromolecular crowding on biological processes:
motion, bimolecular reactions, and gene expression in prokaryotic and eukaryotic cells. We …

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 …

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 …