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- W3190657594 abstract "Abstract Sperm cells can move at a high speed in biofluids based on the flexible flagella, which inspire novel flagellar micro-/nanorobots to be designed. However, mass fabrication of vivid sperm-like nanorobots with flagellar flexibility is still challenging. In this work, a facile and efficient strategy is proposed to produce flexible sperm-like nanorobots with self-assembled head-to-tail structure. The nanorobots were composed of a superparamagnetic head and a flexible Au/PPy flagellum, which were covalently linked via biotin-streptavidin bonding. Under a precessing magnetic field, the head drove the flexible tail to rotate and generated undulatory bending waves propagating along the body. Bidirectional locomotion of the nanorobot was investigated, and moving velocity as well as direction varied with the actuating conditions (field strength, frequency, direction) and the nanorobot’s structure (tail length). Effective flagellar locomotion was observed near the substrate and high velocities were attained in both forward and backward directions. Typical modelling based on elastohydrodynamics and undulatory wave propagation were utilized for propulsion analysis. This research presents novel artificial flexible sperm-like nanorobots with delicate self-assembled head-to-tail structures and remarkable bidirectional locomotion performances, indicating significant potentials for nanorobotic design and future biomedical application." @default.
- W3190657594 created "2021-08-16" @default.
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- W3190657594 date "2021-08-11" @default.
- W3190657594 modified "2023-09-27" @default.
- W3190657594 title "Artificial Flexible Sperm-like Nanorobot Based on Self-assembly and Its Magnetically Actuated Propulsion Property" @default.
- W3190657594 doi "https://doi.org/10.21203/rs.3.rs-787675/v1" @default.
- W3190657594 hasPublicationYear "2021" @default.
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