Breakdown of the Stokes–Einstein relation in supercooled water: The jump-diffusion perspective

V Dubey, S Dueby, S Daschakraborty - Physical Chemistry Chemical …, 2021 - pubs.rsc.org
Although water is the most ubiquitous liquid it shows many thermodynamic and dynamic
anomalies. Some of the anomalies further intensify in the supercooled regime. While many …

Understanding slow and heterogeneous dynamics in model supercooled glass-forming liquids

I Tah, A Mutneja, S Karmakar - ACS omega, 2021 - ACS Publications
Glasses are ubiquitous in nature. Many common items such as ketchups, cosmetic products,
toothpaste, etc. and metallic glasses are examples of such glassy materials whose …

Organization of fast and slow chromatin revealed by single-nucleosome dynamics

SS Ashwin, T Nozaki, K Maeshima… - Proceedings of the …, 2019 - National Acad Sciences
Understanding chromatin organization and dynamics is important, since they crucially affect
DNA functions. In this study, we investigate chromatin dynamics by statistically analyzing …

Transport of probe particles in a polymer network: effects of probe size, network rigidity and probe–polymer interaction

P Kumar, L Theeyancheri, S Chaki, R Chakrabarti - Soft Matter, 2019 - pubs.rsc.org
Fundamental understanding of the effect of microscopic parameters on the dynamics of
probe particles in different complex environments has wide implications. Examples include …

Nanoparticle dynamics in hydrogel networks with controlled defects

KA Rose, E Marino, CS O'Bryan, CB Murray, D Lee… - Soft Matter, 2022 - pubs.rsc.org
The effect of nanoscale defects on nanoparticle dynamics in defective tetra-poly (ethylene
glycol)(tetra-PEG) hydrogels is investigated using single particle tracking. In a swollen …

Single-particle tracking of nonsticky and sticky nanoparticles in polymer melts

J Park, EJ Bailey, RJ Composto, KI Winey - Macromolecules, 2020 - ACS Publications
We use single-particle tracking (SPT) to explore the role of nanoparticles/polymer
interactions and polymer molecular weight on nanoparticle (NP) diffusion in unentangled …

Fickian yet non-Gaussian nanoscopic lipid diffusion in the raft-mimetic membrane

S Erimban, S Daschakraborty - The Journal of Physical Chemistry …, 2023 - ACS Publications
Past experiments rationalized the observed dynamic heterogeneity and non-Gaussian
diffusion in living cell membranes in terms of slow-active remodeling of the underlying …

Motion of an active particle with dynamical disorder

K Goswami, R Chakrabarti - Soft Matter, 2022 - pubs.rsc.org
We propose a model for investigating the motion of a single active particle in a
heterogeneous environment where the heterogeneity may arise due to crowding …

Local self-motion of water through the Van Hove function

Y Shinohara, W Dmowski, T Iwashita, D Ishikawa… - Physical Review E, 2020 - APS
We show that the self-part of the Van Hove function—the correlation function describing the
dynamics of a single molecule—of water can be determined through a high-resolution …

Breakdown of the Stokes–Einstein relation in supercooled water/methanol binary mixtures: Explanation using the translational jump-diffusion approach

V Dubey, S Daschakraborty - The Journal of Physical Chemistry B, 2020 - ACS Publications
A recent experiment has directly checked the validity of the Stokes–Einstein (SE) relation for
pure water, pure methanol, and their binary mixtures of three different compositions at …