Video_6_Redox Reaction Triggered Nanomotors Based on Soft-Oxometalates With High and Sustained Motility.AVI
Apabrita Mallick
Abhrajit Laskar
R. Adhikari
Soumyajit Roy
10.3389/fchem.2018.00152.s013
https://frontiersin.figshare.com/articles/media/Video_6_Redox_Reaction_Triggered_Nanomotors_Based_on_Soft-Oxometalates_With_High_and_Sustained_Motility_AVI/6220601
<p>The recent interest in self-propulsion raises an immediate challenge in facile and single-step synthesis of active particles. Here, we address this challenge and synthesize soft oxometalate nanomotors that translate ballistically in water using the energy released in a redox reaction of hydrazine fuel with the soft-oxometalates. Our motors reach a maximum speed of 370 body lengths per second and remain motile over a period of approximately 3 days. We report measurements of the speed of a single motor as a function of the concentration of hydrazine. It is also possible to induce a transition from single-particle translation to collective motility with biomimetic bands simply by tuning the loading of the fuel. We rationalize the results from a physicochemical hydrodynamic theory. Our nanomotors may also be used for transport of catalytic materials in harsh chemical environments that would otherwise passivate the active catalyst.</p>
2018-05-04 04:11:28
nanomotors
soft-oxometalates (SOMs)
redox process
autonomous motion
chemically powered