Results 291 to 300 of about 4,202,968 (328)

Phototaxis of active colloids by self-thermophoresis.

Soft Matter, 2019
Phototaxis usually refers to the ability of a motile micoorganism to move directionally within a light gradient, which is important for microorganisms to gain energy or avoid damage.
Nan Yu, Xin Lou, Ke Chen, Mingcheng Yang
semanticscholar   +1 more source

Transport on Active Paramagnetic Colloidal Networks

The Journal of Physical Chemistry B, 2016
We dynamically self-assemble an active paramagnetic colloidal network that ballistically transports nonmagnetic fluorescent colloidal particles on top of the network. The transport mechanism is put into effect by a directed hydrodynamic flow, created by the rotation of individual colloids forming the network.
Florian J, Maier, Thomas M, Fischer
openaire   +2 more sources

Effective Interactions between Chemically Active Colloids and Interfaces.

Accounts of Chemical Research, 2018
Chemically active colloids can achieve force- and torque-free motility ("self-propulsion") via the promotion, on their surface, of catalytic chemical reactions involving the surrounding solution.
M. N. Popescu, W. Uspal, A. Domínguez, S. Dietrich   +3 more
semanticscholar   +1 more source

Shape- and material-dependent self-propulsion of photocatalytic active colloids, interfacial effects, and dynamic inter-particle interactions.

Langmuir, 2019
Active colloids powered by self-generated, local chemical concentration gradients exhibit dynamics that is a function of the particles' morphology and materials properties. These characteristics also govern how the active colloids interact with surfaces,
J. Gibbs
semanticscholar   +1 more source

Active Colloids

Active colloids are self-propelled particles, powered by energy harvested from the environment. This field of research has been growing over the past 20 years, attracting researchers from multiple disciplines. Biomedical engineers seek to harness the abilities of motile bacteria, materials chemists are fascinated by the concept of synthetic particles ...
openaire   +1 more source

Engineering Shapes of Active Colloids for Tunable Dynamics

Current Opinion in Colloid & Interface Science, 2022
Zhisheng Wang, Yijiang Mu, Dengping Lyu, Ming Wu, Jiahui Li, Zuochen Wang, Yufeng Wang   +6 more
semanticscholar   +1 more source

Active Colloids on Fluid Interfaces

Current Opinion in Colloid & Interface Science, 2022
Jiayi Deng, M. Molaei, Nicholas G. Chisholm, Tianyi Yao, Alismari Read, K. Stebe   +5 more
semanticscholar   +1 more source

Light-driven Active Colloids

Active colloids, capable of autonomous motion by harnessing energy available in their surroundings, are of significance for advancing micro/nanoscale technologies. Light, as a ubiquitous external stimulus to propel the motion of colloid particles, offers unique benefits such as remote controllability, flexible tunability, and high temporal and spatial ...
Leilei Xu, Qiaoxin Guan, Jianguo Guan
openaire   +1 more source

Introduction to Active Colloids

This chapter provides an overview of the entire research field of active colloids ranging from molecules to microparticles, spanning their types, propulsion mechanisms, collective behavior, applications, and key research frontiers. The goal is to give readers a general understanding of this research field and its important concepts.
Aditya Sapre, Ayusman Sen, Ambarish Ghosh   +2 more
openaire   +1 more source

Applications of Active Colloids

Alongside the rapid progress made in the development and understanding of new active colloidal systems over the last two decades, several applications have also been developed for these particles in a range of different areas. The unique properties of active colloids – self-propulsion, ability to respond to environmental cues, collective behaviour, and
J. Katuri, S. Sanchez
openaire   +1 more source