Results 251 to 260 of about 109,951 (269)

Exploring environmental nanobiogeochemistry using field-flow fractionation and ICP-MS-based tools: progress and frontiers.

Environ Sci Nano
Worms IAM, Tharaud M, Gasco R, Montaño MD, Goodman A, Slaveykova VI, Benedetti MF, Churchill CM, Fernando S, Alasonati E, Moens C, Cuss CW.   +11 more
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Active colloidal microdrills

Chemical Communications, 2015
We demonstrate a chemically driven, autonomous catalytic microdrill.
John G. Gibbs, John G. Gibbs, Peer Fischer, Peer Fischer   +3 more
openaire   +4 more sources

Light‐Activated Active Colloid Ribbons

Angewandte Chemie, 2017
AbstractWe report a dynamic self‐organization of self‐propelled peanut‐shaped hematite motors from non‐equilibrium driving forces where the propulsion can be triggered by blue light. They result in one‐dimensional, active colloid ribbons with a positive phototactic characteristic.
Zhihua Lin, Tieyan Si, Zhiguang Wu, Changyong Gao, Xiankun Lin, Qiang He   +5 more
openaire   +3 more sources

Hæmolytic Activity of Colloidal Silica

Nature, 1961
COLLOIDAL silica is highly toxic when administered parenterally1,2. In isolated biological systems silica has been shown to interfere with some enzymes3,4, activate blood clotting and pharmacologically active substances in plasma5 and interfere with the red cell envelope6.
J. D. Harley, J. Margolis
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Active sculpting of colloidal crystals

The Journal of Chemical Physics, 2019
The development of colloidal particles that can become self-propelled when exposed to a source of light of a given frequency represents one of the most exciting new developments in the field of active matter. In this paper, we perform numerical simulations to explore several properties of crystalline colloidal aggregates in the presence of such ...
S. Das, M. Lee Bowers, C. Bakker, A. Cacciuto   +3 more
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Active colloids segmentation and tracking

Pattern Recognition, 2016
Active colloids constitute a novel class of materials which have drawn a lot of attention in recent years. They are composed of spherical metal particles converting chemical energy into motility, mimicking micro-organisms. Understanding their collective behavior is key to applications.
Wang, Xiaofang, Gao, Boyang, Masnou, Simon, Chen, Liming, Theurkauff, Isaac, Cottin-Bizonne, Cécile, Zhao, Yuqian, Shih, Frank   +7 more
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Colloidal Plasmonics for Active Nanophotonics

Proceedings of the IEEE, 2020
Nanoplasmonics represents one of the most extensive research fields in optics on the nanoscale and has emerging applications in sensors, light-emitting devices, and photovoltaic devices. It offers a number of effects and can be combined with existing technologies by a number of approaches, the colloidal techniques representing the easiest ...
Sergey V. Gaponenko, Dmitry V. Guzatov
openaire   +2 more sources