Results 61 to 70 of about 40,497 (195)

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

A cluster theory for a Janus fluid [PDF]

open access: yes, 2012
Recent Monte Carlo simulations on the Kern and Frenkel model of a Janus fluid have revealed that in the vapour phase there is the formation of preferred clusters made up of a well-defined number of particles: the micelles and the vesicles.
A. Giacometti   +34 more
core   +1 more source

Modular Construction of Prussian Blue Analog and TiO2 Dual‐Compartment Janus Nanoreactor for Efficient Photocatalytic Water Splitting

open access: yesAdvanced Science, 2021
Janus structures that include different functional compartments have attracted significant attention due to their specific properties in a diverse range of applications.
Chunjing Shi   +11 more
doaj   +1 more source

First experiments with carbon black pigment dispersion acting as a Janus ultrasound contrast agent

open access: yesBIO Integration, 2023
Background: Theranostic ultrasound contrast agents comprise a therapeutic component whose controlled release is triggered by an ultrasound pulse. However, once the therapeutic component has been released from an ultrasound contrast agent microbubble, its
Jean de Bruin Jordaan   +3 more
doaj   +1 more source

Active Brownian Motion Tunable by Light [PDF]

open access: yes, 2012
Active Brownian particles are capable of taking up energy from their environment and converting it into directed motion; examples range from chemotactic cells and bacteria to artificial micro-swimmers.
Berg H C   +9 more
core   +3 more sources

Synthesis of Janus Polydiacetylene Sensor Particles with Thermochromism and Solvatochromism Properties

open access: yesSmall Structures
The first report is presented on the fabrication of anisotropic Janus polydiacetylene (PDA) microparticles with dual colorimetric properties. Spherical proto‐PDA particles are initially created by drying an emulsion containing 10,12‐pentacosadiynoic acid
Chetan C. Revadekar   +3 more
doaj   +1 more source

Orientational dynamics of a heated Janus particle [PDF]

open access: yesThe Journal of Chemical Physics, 2018
Using large scale molecular dynamics simulations, we study the orientational dynamics of a heated Janus particle which exhibits self-propulsion. The asymmetry in the microscopic interaction of the colloid with the solvent is implemented by choosing different wetting parameters for the two halves of the sphere.
openaire   +5 more sources

Using the Discrete Dipole Approximation and Holographic Microscopy to Measure Rotational Dynamics of Non-spherical Colloidal Particles

open access: yes, 2015
We present a new, high-speed technique to track the three-dimensional translation and rotation of non-spherical colloidal particles. We capture digital holograms of micrometer-scale silica rods and sub-micrometer-scale Janus particles freely diffusing in
Chaudhary, Kundan   +6 more
core   +1 more source

Flagellar dynamics of chains of active Janus particles fueled by an AC electric field

open access: yesNew Journal of Physics, 2018
We study the active dynamics of self-propelled asymmetrical colloidal particles (Janus particles) fueled by an AC electric field. Both the speed and direction of the self-propulsion, and the strength of the attractive interaction between particles can be
Daiki Nishiguchi   +3 more
doaj   +1 more source

Janus particles for biological imaging and sensing [PDF]

open access: yesThe Analyst, 2016
Janus particles with anisotropic surface makeup or compartments enable novel imaging and sensing in biological systems.
Yuan Gao, Yan Yu, Lucero Sanchez, Yi Yi
openaire   +2 more sources

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