Characterization on Three‐Dimensional Trajectory of Disk‐Like Gold‐Nickel‐Platinum Nanomotor Using Digital Holographic Imaging

Hu, Liangxing; Rehman, Shakil; Tao, Kai; Miao, Jianmin

doi:10.1002/slct.201801534

Cited by 5 publications

(5 citation statements)

References 34 publications

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“…In addition, the micro-craft with dual off-center nozzle nanoengines propelled forward linearly. The results of this research will encourage further studies, such as the exploration of the self-steerable propulsion of the micro-craft via the design of the off-center nanoengine, , the propulsion characterization of the micro-craft in the microfluidic channel, , and the propulsion controlling by external magnetic field. , Such micro-crafts may be useful for cargo delivery and other applications. ,,,, …”

Section: Discussionmentioning

confidence: 86%

Self-Steerable Propulsion of Disk-Like Micro-Craft with Dual Off-Center Nanoengines

Tao

Lim

et al. 2018

ACS Appl. Energy Mater.

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This paper reports a novel disk-like micro-craft with dual off-center nozzle nanoengines, consisting of three different metals: gold, nickel, and platinum. A bubble propulsion mechanism originating from momentum change induced by the detachment of oxygen bubbles is proposed to elaborate the self-steerable propulsion of the disk-like gold-nickel-platinum micro-craft. The asproposed micro-craft is fabricated by a layer-by-layer deposition method based on the microelectro-mechanical systems technology. Herein, the self-steerable propulsion of the fabricated micro-craft dispersed in deionized water with different hydrogen peroxide concentrations is characterized. As a consequence, the speed of the micro-craft is increased with the increment of hydrogen peroxide concentration. In addition, the micro-craft can always move forward linearly.

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Section: Discussionmentioning

confidence: 86%

Self-Steerable Propulsion of Disk-Like Micro-Craft with Dual Off-Center Nanoengines

Tao

Lim

et al. 2018

ACS Appl. Energy Mater.

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“…Mallouk et al demonstrated the internalization of a nanowire-based motor inside living cells, as shown in Figure 25D. Developing biocompatible materials and fuels for artificial micro-/ nanomotors or the use of noninvasive external triggered motors may pave the way for biomedical applications of micro-/nanomotors in the near future [72][73][74][75][76][77][78][79][80].…”

Section: Biomedical Applicationsmentioning

confidence: 99%

Catalytic Micro/Nanomotors: Propulsion Mechanisms, Fabrication, Control, and Applications

Hu¹,

Wang²,

Tao³

2020

Smart Nanosystems for Biomedicine, Optoelectronics and Catalysis

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Micro-/nanomotors are self-propelled micro-/nanomachines, which are capable of converting the surrounding fuels into mechanical movement or force. Inspired by naturally occurring biomolecular motor proteins, scientists extensively paid great attentions to synthetic micro-/nanomotors. Especially, a number of researchers devoted their efforts onto catalytic micro-/nanomotors. In the past few decades, several advanced developments and excellent contributions have been made in catalytic micro-/nanomotors. The future of this research field can be bright, but some major existing challenges such as biocompatible materials and fuels, smart controlling, and specifically practical applications are still required to be resolved. Therefore, it is essential for us to learn the state of the art of catalytic micro-/nanomotors. In this chapter, the propulsion mechanisms, fabrication methods, controlling strategies, and potential applications of catalytic micro-/nanomotors are presented and summarized.

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“…Such micromotors could be used for environmental remediation and practical applications. [28][29][30][31][32][33][34][35][36]…”

Section: Surfactant Effect On Au-ni-pt Micromotor's Propulsion and Ementioning

confidence: 99%

Chemical reaction dependency, magnetic field and surfactant effects on the propulsion of disk‐like micromotor and its application for E. coli transportation

Wang

Lim

et al. 2020

Nano Select

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In this article, a miniature micromotor comprising of gold, nickel, and platinum is proposed. Herein, platinum acting as a chemical catalyst stimulates hydrogen peroxide to decompose into water and oxygen bubbles separated from the surface, which conversely produces a recoil force to drive the gold-nickelplatinum micromotor propelling forward. The micromotor is synthesized by a layer-by-layer coating strategy based on the micro-electro-mechanical systems technology. The propulsion of the as-synthesized micromotor is experimentally conducted in diluted hydrogen peroxide both with and without the presence of external magnetic field, disclosing that oxygen bubbles are produced and separated from the platinum surface. Moreover, the results show that the speed of the gold-nickel-platinum micromotor is larger at higher hydrogen peroxide concentration, and the micromotor is able to move forward in an either linear or circular trajectory depending on the separation site of oxygen bubbles, the propulsion path of the micromotor can be manipulated by external magnetic field as well. Hence, the propulsion of the micromotor is chemical reaction-and magnetic field-dependent. In addition, the surfactant effect on the propulsion of micromotor and its application for E. coli transportation are investigated.

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Characterization on Three‐Dimensional Trajectory of Disk‐Like Gold‐Nickel‐Platinum Nanomotor Using Digital Holographic Imaging

Cited by 5 publications

References 34 publications

Self-Steerable Propulsion of Disk-Like Micro-Craft with Dual Off-Center Nanoengines

Self-Steerable Propulsion of Disk-Like Micro-Craft with Dual Off-Center Nanoengines

Catalytic Micro/Nanomotors: Propulsion Mechanisms, Fabrication, Control, and Applications

Chemical reaction dependency, magnetic field and surfactant effects on the propulsion of disk‐like micromotor and its application for E. coli transportation

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