Journal
NANO LETTERS
Volume 15, Issue 7, Pages 4829-4833Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.5b01981
Keywords
1-, 2-, and 3-Link nanoswimmers; undulatory locomotion; planar oscillating magnetic field; nanowires
Categories
Funding
- European Community
- European Research Council
- ERC [336456]
- Israel Science Foundation [567/14]
- European Research Council (ERC) [336456] Funding Source: European Research Council (ERC)
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Micro- and nanorobots operating in low Reynolds number fluid environments require specialized swimming strategies for efficient locomotion. Prior research has focused on designs mimicking the rotary corkscrew motion of bacterial flagella or the planar beating motion of eukaryotic flagella. These biologically inspired designs are typically of uniform construction along their flagellar axis. This work demonstrates for the first time planar undulations of composite multilink nanowire-based chains (diameter 200 nm) induced by a planar-oscillating magnetic field. Those chains comprise an elastic eukaryote-like polypyrrole tail and rigid magnetic nickel links connected by flexible polymer bilayer hinges. The multilink design exhibits a high swimming efficiency. Furthermore, the manufacturing process enables tuning the geometrical and material properties to specific applications.
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