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Open AccessArticle

“Z”-Shaped Rotational Au/Pt Micro-Nanorobot

Provincial Jiangsu Key Laboratory for Advanced Robotics, Soochow University, Suzhou 215123, China
Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
Department of Micro-Nano Systems Engineering, Nagoya University, Nagoya 464-8603, Japan
Intelligent Robotics Institute, School of Mechatronic Engineering, Beijing Institute of Technology, Beijing 100081, China
Authors to whom correspondence should be addressed.
Academic Editor: Duc Truong Pham
Micromachines 2017, 8(6), 183;
Received: 15 March 2017 / Revised: 27 May 2017 / Accepted: 29 May 2017 / Published: 8 June 2017
(This article belongs to the Special Issue Micro/Nano Robotics, Volume II)
Drug delivery, minimally-invasive surgery, and a hospital-in-the-body are highly desirable for meeting the rapidly growing needs of nanorobot. This paper reports a Z-shaped gold/platinum (Au/Pt) hybrid nanorobot which realizes the self-rotational movement without an external force field. The Z-shaped Au/Pt hybrid nanorobot was fabricated by focused ion beam (FIB) and plasma sputtering. The purity of the nanorobot was tested by energy dispersive X-ray analysis (EDS). The weight percentage of Pt and Au at the tip were 94.28% and 5.72%, respectively. The weight percentage of Pt and Au at the bottom were 17.39% and 82.75%, respectively. The size of the nanorobot was 2.58 × 10−16 m2 and the mass of the nanorobot was 8.768 × 10−8 kg. The driving force of the nanorobot was 9.76 × 10−14 N at the 6.9% concentration of hydrogen peroxide solution. The rotation speed was 13 rpm, 14 rpm, and 19 rpm at 5.6%, 6.2%, and 7.8% concentrations, respectively. View Full-Text
Keywords: nanorobot; self-actuation; drug delivery system nanorobot; self-actuation; drug delivery system
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MDPI and ACS Style

Chen, K.; Gu, C.; Yang, Z.; Nakajima, M.; Chen, T.; Fukuda, T. “Z”-Shaped Rotational Au/Pt Micro-Nanorobot. Micromachines 2017, 8, 183.

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