Results 61 to 70 of about 2,553,633 (324)

Phoretic self-propulsion at finite P\'eclet numbers [PDF]

open access: yes, 2014
Phoretic self-propulsion is a unique example of force- and torque-free motion on small scales. The classical framework describing the flow field around a particle swimming by self-diffusiophoresis neglects the advection of the solute field by the flow ...
Lauga, Eric, Michelin, Sébastien
core   +3 more sources

Electrophoresis of Janus Particles: a Molecular Dynamics simulation study

open access: yes, 2016
In this work, we use Molecular Dynamics and Lattice-Boltzmann simulations to study the properties of charged Janus particles in an electric field. We show that for relatively small net charge and thick electrostatic diffuse layer mobilities of Janus ...
Lobaskin, Vladimir   +2 more
core   +1 more source

Screening of heterogeneous surfaces: charge renormalization of Janus particles [PDF]

open access: yes, 2009
Nonlinear ionic screening theory for heterogeneously charged spheres is developed in terms of a mode-decomposition of the surface charge. A far-field analysis of the resulting electrostatic potential leads to a natural generalization of charge ...
Boon, N.   +5 more
core   +1 more source

Hydrodynamic simulations of self-phoretic microswimmers

open access: yes, 2014
A mesoscopic hydrodynamic model to simulate synthetic self-propelled Janus particles which is thermophoretically or diffusiophoretically driven is here developed.
Ripoll, Marisol   +2 more
core   +1 more source

Controllable Assembly and Application of Janus Smart Nanosheets for Oil Displacement

open access: yesFrontiers in Chemistry, 2020
Based on the development status of low permeability reservoirs, an intelligent nano-flooding agent is needed to improve the displacement efficiency of reservoirs. Janus particles have the characteristics of small size and strong interfacial activity, and
Fang Shi   +4 more
doaj   +1 more source

Molecular dynamics simulations of the rotational and translational diffusion of a Janus rod-shaped nanoparticle

open access: yes, 2017
The diffusion of a Janus rod-shaped nanoparticle in a dense Lennard-Jones fluid is studied using molecular dynamics (MD) simulations. The Janus particle is modeled as a rigid cylinder whose atoms on each half-side have different interaction energies with
Kharazmi, Ali, Priezjev, Nikolai V.
core   +1 more source

Critical adsorption of polyelectrolytes onto charged Janus nanospheres

open access: yes, 2014
Based on extensive Monte Carlo simulations and analytical considerations we study the electrostatically driven adsorption of flexible polyelectrolyte chains onto charged Janus nanospheres.
Cherstvy, Andrey G.   +2 more
core   +1 more source

Microsphere Autolithography—A Scalable Approach for Arbitrary Patterning of Dielectric Spheres

open access: yesAdvanced Functional Materials, EarlyView.
MicroSphere Autolithography (µSAL) enables scalable fabrication of patchy particles with customizable surface motifs. Focusing light through dielectric microspheres creates well defined, tunable patches via a conformal poly(dopamine) photoresist. Nearly arbitrary surface patterns can be achieved, with the resolution set by the index contrast between ...
Elliott D. Kunkel   +3 more
wiley   +1 more source

Porous Media Microstructure Determines the Diffusion of Active Matter: Experiments and Simulations

open access: yesFrontiers in Physics, 2022
Active swimmers are known to accumulate along external boundaries owing to their persistent self-motion, resulting in a significant reduction in their effective mobility through heterogeneous and tortuous materials.
Kevin J. Modica   +2 more
doaj   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

open access: yesAdvanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha   +18 more
wiley   +1 more source

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