Shape and scale dependent diffusivity of colloidal nanoclusters and aggregates

Research output: Contribution to journalArticleScientificpeer-review

Standard

Shape and scale dependent diffusivity of colloidal nanoclusters and aggregates. / Alcanzare, M. M T; Ollila, S. T. T.; Thakore, V.; Laganapan, A. M.; Videcoq, A.; Cerbelaud, M.; Ferrando, R.; Ala-Nissilä, Tapio.

In: EUROPEAN PHYSICAL JOURNAL: SPECIAL TOPICS, Vol. 225, No. 4, 01.07.2016, p. 729-739.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

APA

Vancouver

Author

Alcanzare, M. M T ; Ollila, S. T. T. ; Thakore, V. ; Laganapan, A. M. ; Videcoq, A. ; Cerbelaud, M. ; Ferrando, R. ; Ala-Nissilä, Tapio. / Shape and scale dependent diffusivity of colloidal nanoclusters and aggregates. In: EUROPEAN PHYSICAL JOURNAL: SPECIAL TOPICS. 2016 ; Vol. 225, No. 4. pp. 729-739.

Bibtex - Download

@article{b3bdca5042784dac91600b92efb01ebb,
title = "Shape and scale dependent diffusivity of colloidal nanoclusters and aggregates",
abstract = "The diffusion of colloidal nanoparticles and nanomolecular aggregates, which plays an important role in various biophysical and physicochemical phenomena, is currently under intense study. Here, we examine the shape and size dependent diffusion of colloidal nano- particles, fused nanoclusters and nanoaggregates using a hybrid fluctuating lattice Boltzmann-Molecular Dynamics method. We use physically realistic parameters characteristic of an aqueous solution, with explicitly implemented microscopic no-slip and full-slip boundary conditions. Results from nanocolloids below 10 nm in radii demonstrate how the volume fraction of the hydrodynamic boundary layer influences diffusivities. Full-slip colloids are found to diffuse faster than no-slip particles. We also characterize the shape dependent anisotropy of the diffusion coefficients of nanoclusters through the Green-Kubo relation. Finally, we study the size dependence of the diffusion of nanoaggregates comprising N ≤ 108 monomers and demonstrate that the diffusion coefficient approaches the continuum scaling limit of N−1/3.",
author = "Alcanzare, {M. M T} and Ollila, {S. T. T.} and V. Thakore and Laganapan, {A. M.} and A. Videcoq and M. Cerbelaud and R. Ferrando and Tapio Ala-Nissil{\"a}",
year = "2016",
month = "7",
day = "1",
doi = "10.1140/epjst/e2015-50263-y",
language = "English",
volume = "225",
pages = "729--739",
journal = "EUROPEAN PHYSICAL JOURNAL: SPECIAL TOPICS",
issn = "1951-6355",
publisher = "Springer Verlag",
number = "4",

}

RIS - Download

TY - JOUR

T1 - Shape and scale dependent diffusivity of colloidal nanoclusters and aggregates

AU - Alcanzare, M. M T

AU - Ollila, S. T. T.

AU - Thakore, V.

AU - Laganapan, A. M.

AU - Videcoq, A.

AU - Cerbelaud, M.

AU - Ferrando, R.

AU - Ala-Nissilä, Tapio

PY - 2016/7/1

Y1 - 2016/7/1

N2 - The diffusion of colloidal nanoparticles and nanomolecular aggregates, which plays an important role in various biophysical and physicochemical phenomena, is currently under intense study. Here, we examine the shape and size dependent diffusion of colloidal nano- particles, fused nanoclusters and nanoaggregates using a hybrid fluctuating lattice Boltzmann-Molecular Dynamics method. We use physically realistic parameters characteristic of an aqueous solution, with explicitly implemented microscopic no-slip and full-slip boundary conditions. Results from nanocolloids below 10 nm in radii demonstrate how the volume fraction of the hydrodynamic boundary layer influences diffusivities. Full-slip colloids are found to diffuse faster than no-slip particles. We also characterize the shape dependent anisotropy of the diffusion coefficients of nanoclusters through the Green-Kubo relation. Finally, we study the size dependence of the diffusion of nanoaggregates comprising N ≤ 108 monomers and demonstrate that the diffusion coefficient approaches the continuum scaling limit of N−1/3.

AB - The diffusion of colloidal nanoparticles and nanomolecular aggregates, which plays an important role in various biophysical and physicochemical phenomena, is currently under intense study. Here, we examine the shape and size dependent diffusion of colloidal nano- particles, fused nanoclusters and nanoaggregates using a hybrid fluctuating lattice Boltzmann-Molecular Dynamics method. We use physically realistic parameters characteristic of an aqueous solution, with explicitly implemented microscopic no-slip and full-slip boundary conditions. Results from nanocolloids below 10 nm in radii demonstrate how the volume fraction of the hydrodynamic boundary layer influences diffusivities. Full-slip colloids are found to diffuse faster than no-slip particles. We also characterize the shape dependent anisotropy of the diffusion coefficients of nanoclusters through the Green-Kubo relation. Finally, we study the size dependence of the diffusion of nanoaggregates comprising N ≤ 108 monomers and demonstrate that the diffusion coefficient approaches the continuum scaling limit of N−1/3.

UR - http://www.scopus.com/inward/record.url?scp=84978227271&partnerID=8YFLogxK

U2 - 10.1140/epjst/e2015-50263-y

DO - 10.1140/epjst/e2015-50263-y

M3 - Article

VL - 225

SP - 729

EP - 739

JO - EUROPEAN PHYSICAL JOURNAL: SPECIAL TOPICS

JF - EUROPEAN PHYSICAL JOURNAL: SPECIAL TOPICS

SN - 1951-6355

IS - 4

ER -

ID: 6675228