Man-made rotary nanomotors: a review of recent developments

Kim, Kwanoh; Guo, Jianhe; Liang, Zexi; Zhu, F. Q.; Fan, Donglei

doi:10.1039/c5nr08768f

Cited by 87 publications

(68 citation statements)

References 171 publications

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“…As a result, it is difficult to apply these fabrication technologies to the preparation of even smaller NEMS devices . It is, therefore, important to investigate new principles and design approaches (e.g., device preparation by using synthesized nanoentities as building blocks) to realize nanoscale devices/systems like nanomotors . A class of nanomotors realized by the linear motion of nanoparticles can be found in literature .…”

Section: Introductionmentioning

confidence: 99%

Rotating‐Electric‐Field‐Induced Carbon‐Nanotube‐Based Nanomotor in Water: A Molecular Dynamics Study

Rahman

Chowdhury

Alam

2017

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Using molecular dynamics simulations, it is shown that a carbon nanotube (CNT) suspended in water and subjected to a rotating electric field of proper magnitude and angular speed can be rotated with the aid of water dipole orientations. Based on this principle, a rotational nanomotor structure is designed and the system is simulated in water. Use of the fast responsiveness of electric-field-induced CNT orientation in water is employed and its operation at ultrahigh-speed (over 10 r.p.m.) is shown. To explain the basic mechanism, the behavior of the rotational actuation, originated from the water dipole orientation, is also analyzed . The proposed nanomotor is capable of rotating an attached load (such as CNT) at a precise angle as well as nanogear-based complex structures. The findings suggest a potential way of using the electric-field-induced CNT rotation in polarizable fluids as a novel tool to operate nanodevices and systems.

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Section: Introductionmentioning

confidence: 99%

Rotating‐Electric‐Field‐Induced Carbon‐Nanotube‐Based Nanomotor in Water: A Molecular Dynamics Study

Rahman

Chowdhury

Alam

2017

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“…The Si nanocrescents have a complicated shape and their diffusion and friction coefficients in water are nontrivial. [35,36] All in all, these results open many new opportunities and perspectives for investigations and applications of high-index resonators in nanophotonics. This value is four times larger than what was found in the only previous report on optical trapping of high-index nanostructures, which considered elongated Si particles of varying aspect ratio.…”

Section: Chiral Nanoresonatorsmentioning

confidence: 86%

Metasurfaces and Colloidal Suspensions Composed of 3D Chiral Si Nanoresonators

et al. 2017

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High-refractive-index silicon nanoresonators are promising low-loss alternatives to plasmonic particles in CMOS-compatible nanophotonics applications. However, complex 3D particle morphologies are challenging to realize in practice, thus limiting the range of achievable optical functionalities. Using 3D film structuring and a novel gradient mask transfer technique, the first intrinsically chiral dielectric metasurface is fabricated in the form of a monolayer of twisted silicon nanocrescents that can be easily detached and dissolved into colloidal suspension. The metasurfaces exhibit selective handedness and a circular dichroism as large as 160° µm due to pronounced differences in induced current loops for left-handed and right-handed polarization. The detailed morphology of the detached particles is analyzed using high-resolution transmission electron microscopy. Furthermore, it is shown that the particles can be manipulated in solution using optical tweezers. The fabrication and detachment method can be extended to different nanoparticle geometries and paves the way for a wide range of novel nanophotonic experiments and applications of high-index dielectrics.

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“…[1][2][3][4][5][6][7][8][9] Catalytic micro/nanomotors that convert chemical energy into mechanical motions, are one of the most widely exploited autonomous nanomotors. [10][11][12][13][14][15][16][17][18] Billions of catalytic nanomotors can be facilely fabricated by using a variety of techniques, such as electrodeposition into nanoporous templates and electron beam deposition on monolayer nanospheres.…”

Section: Introductionmentioning

confidence: 99%

Electric-Field-Guided Precision Manipulation of Catalytic Nanomotors for Cargo Delivery and Powering Nanoelectromechanical Devices

et al. 2018

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ABSTRACT:We report a controllable and precision approach in manipulating catalytic nanomotors by strategically applied electric (E-) fields in three dimensions (3-D). With the high controllability, the catalytic nanomotors have demonstrated new versatility in capturing, delivering, and releasing of cargos to designated locations as well as in-situ integration with nanomechanical devices (NEMS) to chemically power the actuation. With combined AC and DC E-fields, catalytic nanomotors can be accurately aligned by the AC E-fields and instantly change their speeds by the DC E-fields. Within the 3-D orthogonal microelectrode sets, the in-plane transport of catalytic nanomotors can be swiftly turned on and off, and these catalytic nanomotors can also move in the vertical direction. The interplaying nanoforces that govern the propulsion and alignment are investigated. The modeling of catalytic nanomotors proposed in previous works has been confirmed quantitatively here. Finally, the prowess of the precision manipulation of catalytic nanomotors by E-fields is demonstrated in two applications: the capture, transport, and release of cargos to pre-patterned microdocks, and the assembly of catalytic nanomotors on NEMS to power the continuous rotation. The innovative concepts and approaches reported in this work could further advance ideal applications of catalytic nanomotors, e.g. for assembling and powering nanomachines, nanorobots, and complex NEMS devices.

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Man-made rotary nanomotors: a review of recent developments

Cited by 87 publications

References 171 publications

Rotating‐Electric‐Field‐Induced Carbon‐Nanotube‐Based Nanomotor in Water: A Molecular Dynamics Study

Rotating‐Electric‐Field‐Induced Carbon‐Nanotube‐Based Nanomotor in Water: A Molecular Dynamics Study

Metasurfaces and Colloidal Suspensions Composed of 3D Chiral Si Nanoresonators

Electric-Field-Guided Precision Manipulation of Catalytic Nanomotors for Cargo Delivery and Powering Nanoelectromechanical Devices

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