Relating Rheotaxis and Hydrodynamic Actuation using Asymmetric Gold-Platinum Phoretic Rods

We explore the behavior of micron-scale autophoretic Janus (Au/Pt) rods, having various Au/Pt length ratios, swimming near a wall in an imposed background flow. We find that their ability to robustly orient and move upstream, i.e., to rheotax, depends strongly on the Au/Pt ratio, which is easily tun...

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Veröffentlicht in:	Physical review letters 2019-10, Vol.123 (17), p.1-178004, Article 178004
Hauptverfasser:	Brosseau, Quentin, Usabiaga, Florencio Balboa, Lushi, Enkeleida, Wu, Yang, Ristroph, Leif, Zhang, Jun, Ward, Michael, Shelley, Michael J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Actuation Computer simulation Dependence Gold Mathematical models Nanoparticles Platinum Rods Slip Swimming
Online-Zugang:	Volltext
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