Active colloidal microdrills

Active colloidal microdrills

We demonstrate a chemically driven, autonomous catalytic microdrill. An asymmetric distribution of catalyst causes the helical swimmer to twist while it undergoes directed propulsion. A driving torque and hydrodynamic coupling between translation and rotation at low Reynolds number leads to drill-li...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2015-03, Vol.51 (20), p.4192-4195
Hauptverfasser: Gibbs, J G, Fischer, P
Format: Artikel
Sprache:eng
Schlagworte:
Catalysis
Catalysts
Colloids - chemistry
Coupling
Fluid dynamics
Fluid flow
Hydrodynamics
Low Reynolds number
Microdrills
Movement
Platinum - chemistry
Rotation
Skewed distributions
Torque
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Beschreibung
Zusammenfassung:We demonstrate a chemically driven, autonomous catalytic microdrill. An asymmetric distribution of catalyst causes the helical swimmer to twist while it undergoes directed propulsion. A driving torque and hydrodynamic coupling between translation and rotation at low Reynolds number leads to drill-like swimming behaviour.
ISSN:1359-7345
1364-548X
DOI:10.1039/c5cc00565e