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Janus Particles: 1- Design and Preparation [PDF]

open access: yesBaspārish, 2022
In Roman religion, Janus was a god known as the custodian of the universe. He was usually shown with two heads in opposite sides to look in two directions at the same time. The term "Janus" is used to describe particles that have two faces with different
Maede Ramezanpour   +1 more
doaj   +1 more source

Polarization of active Janus particles [PDF]

open access: yesPhysical Review E, 2014
We study the collective motion of Janus particles in a temperature or concentration gradient. Because of the torque exerted by an external or self-generated field, the particles align their axis on this gradient. In a swarm of self-driven particles, this polarization enhances the interactiondriven confinement.
Bickel, Thomas   +2 more
openaire   +3 more sources

Janus particle microshuttle: 1D directional self-propulsion modulated by AC electrical field

open access: yesAIP Advances, 2014
A catalytic Janus particle is capable of gaining energy from the surrounding fuel solution to drive itself to move continuously, which has an important impact in different fields, especially the field of micro-systems.
Jiliang Chen   +3 more
doaj   +1 more source

Domain-selective disruption and compression of phase-separated lipid vesicles by amphiphilic Janus nanoparticles

open access: yesiScience, 2022
Summary: Janus nanoparticles (NPs) with anisotropic surface functionalities enable unique biomedical applications, but their interaction with the biomembranes cannot be predicted by models derived from nanoparticles with uniform surface chemistry.
Jared T. Wiemann   +3 more
doaj   +1 more source

Electrostatic interactions between Janus particles [PDF]

open access: yesThe Journal of Chemical Physics, 2012
In this paper we study the electrostatic properties of “Janus” spheres with unequal charge densities on both hemispheres. We introduce a method to compare primitive-model Monte Carlo simulations of the ionic double layer with predictions of (mean-field) nonlinear Poisson-Boltzmann theory. We also derive practical Derjaguin Landau Verwey Overbeek (DLVO)-
de Graaf, J.   +3 more
openaire   +4 more sources

Magnetic Concentric Hot-Circle Generation at Optical Frequencies in All-Dielectric Mesoscale Janus Particles

open access: yesNanomaterials, 2022
The development of all-dielectric structures with high magnetic response at optical frequencies has become a matter of intense study in past years.
Oleg V. Minin   +4 more
doaj   +1 more source

Symmetrical Catalytic Colloids Display Janus‐Like Active Brownian Particle Motion

open access: yesAdvanced Science, 2023
Catalytic Janus colloids, with one hemi‐sphere covered by a hydrogen peroxide reduction catalyst such as platinum, represent one of the most experimentally explored examples of self‐motile active colloid systems. This paper comparatively investigates the
Richard J. Archer, Stephen J. Ebbens
doaj   +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

Development of a Self-Viscosity and Temperature-Compensated Technique for Highly Stable and Highly Sensitive Bead-Based Diffusometry

open access: yesBiosensors, 2022
Brownian motion, which is a natural phenomenon, has attracted numerous researchers and received extensive studies over the past decades. The effort contributes to the discovery of optical diffusometry, which is commonly used for micro/nano particle ...
Wei-Long Chen, Han-Sheng Chuang
doaj   +1 more source

Structure, Stability, and Superconductivity of Two-Dimensional Janus NbSH Monolayers: A First-Principle Investigation

open access: yesMolecules, 2023
Two-dimensional Janus materials have unique structural characteristics due to their lack of out-of-plane mirror symmetry, resulting in many excellent physical and chemical properties.
Yan Li, Chunying Pu, Dawei Zhou
doaj   +1 more source

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