Catalytic Iridium-Based Janus Micromotors Powered by Ultralow Levels of Chemical Fuels
Top Cited Papers
- 29 January 2014
- journal article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 136 (6), 2276-2279
- https://doi.org/10.1021/ja413002e
Abstract
We describe catalytic micromotors powered by remarkably low concentrations of chemical fuel, down to the 0.0000001% level. These Janus micromotors rely on an iridium hemispheric layer for the catalytic decomposition of hydrazine in connection to SiO2 spherical particles. The micromotors are self-propelled at a very high speed (of ∼20 body lengths s–1) in a 0.001% hydrazine solution due to osmotic effects. Such a low fuel concentration represents a 10 000-fold decrease in the level required for common catalytic nanomotors. The attractive propulsion performance, efficient catalytic energy-harvesting, environmentally triggered swarming behavior, and magnetic control of the new Janus micromotors hold considerable promise for diverse practical applications.This publication has 36 references indexed in Scilit:
- Small power: Autonomous nano- and micromotors propelled by self-generated gradientsNano Today, 2013
- NanomachinesPublished by Wiley ,2013
- Nano/Microscale Motors: Biomedical Opportunities and ChallengesACS Nano, 2012
- Autonomous movement of platinum-loaded stomatocytesNature Chemistry, 2012
- Electric field-induced chemical locomotion of conducting objectsNature Communications, 2011
- Propulsion of Microobjects by Dynamic Bipolar Self-RegenerationJournal of the American Chemical Society, 2010
- Fuel for Thought: Chemically Powered Nanomotors Out-Swim Nature’s Flagellated BacteriaACS Nano, 2010
- Nanorobots: The Ultimate Wireless Self‐Propelled Sensing and Actuating DevicesChemistry – An Asian Journal, 2009
- Powering NanorobotsScientific American, 2009
- Dream NanomachinesAdvanced Materials, 2005