Dynamics of polymer segments, polymer chains, and nanoparticles in polymer nanocomposite melts: A review

EJ Bailey, KI Winey - Progress in Polymer Science, 2020 - Elsevier
The addition of nanoparticles (NPs) to a polymer matrix, forming a polymer nanocomposite
(PNC), is known to alter the microscopic dynamic processes of both species which leads to …

Getting around the cell: physical transport in the intracellular world

SS Mogre, AI Brown, EF Koslover - Physical Biology, 2020 - iopscience.iop.org
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 diffusivity from stochastic equations: comparison of two models for Brownian yet non-Gaussian diffusion

V Sposini, AV Chechkin, F Seno, G Pagnini… - New Journal of …, 2018 - iopscience.iop.org
A considerable number of systems have recently been reported in which Brownian yet non-
Gaussian dynamics was observed. These are processes characterised by a linear growth in …

Packets of diffusing particles exhibit universal exponential tails

E Barkai, S Burov - Physical review letters, 2020 - APS
Brownian motion is a Gaussian process described by the central limit theorem. However,
exponential decays of the positional probability density function P (X, t) of packets of …

Superstatistics and non-Gaussian diffusion

R Metzler - The European Physical Journal Special Topics, 2020 - Springer
Brownian motion and viscoelastic anomalous diffusion in homogeneous environments are
intrinsically Gaussian processes. In a growing number of systems, however, non-Gaussian …

Triggering Gaussian-to-Exponential Transition of Displacement Distribution in Polymer Nanocomposites via Adsorption-Induced Trapping

M Hu, H Chen, H Wang, S Burov, E Barkai, D Wang - Acs Nano, 2023 - ACS Publications
In many disordered systems, the diffusion of classical particles is described by a
displacement distribution P (x, t) that displays exponential tails instead of Gaussian statistics …

Unexpected crossovers in correlated random-diffusivity processes

W Wang, F Seno, IM Sokolov, AV Chechkin… - New Journal of …, 2020 - iopscience.iop.org
The passive and active motion of micron-sized tracer particles in crowded liquids and inside
living biological cells is ubiquitously characterised by'viscoelastic'anomalous diffusion, in …

Non-Gaussian diffusion near surfaces

A Alexandre, M Lavaud, N Fares, E Millan, Y Louyer… - Physical Review Letters, 2023 - APS
We study the diffusion of particles confined close to a single wall and in double-wall planar
channel geometries where the local diffusivities depend on the distance to the boundaries …

Brownian motion and beyond: first-passage, power spectrum, non-Gaussianity, and anomalous diffusion

R Metzler - Journal of Statistical Mechanics: Theory and …, 2019 - iopscience.iop.org
Brownian motion is a ubiquitous physical phenomenon across the sciences. After its
discovery by Brown and intensive study since the first half of the 20th century, many different …

Hopping behavior mediates the anomalous confined diffusion of nanoparticles in porous hydrogels

C Xue, Y Huang, X Zheng, G Hu - The Journal of Physical …, 2022 - ACS Publications
Diffusion is an essential means of mass transport in porous materials such as hydrogels,
which are appealing in various biomedical applications. Herein, we investigate the diffusive …