Undulatory Locomotion of Magnetic Multilink Nanoswimmers

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• 作者：Bumjin Jang ; Emiliya Gutman ; Nicolai Stucki ; Benedikt F. Seitz ; Pedro D. Wendel-Garc铆a ; Taylor Newton ; Juho Pokki ; Olga莽 Ergeneman ; Salvador Pan茅 ; Yizhar Or ; Bradley J. Nelson
• 刊名：Nano Letters
• 出版年：2015
• 出版时间：July 8, 2015
• 年：2015
• 卷：15
• 期：7
• 页码：4829-4833
• 全文大小：338K
• ISSN：1530-6992

文摘

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.