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Vol. 8 No. 2 (2016)

Dual-Fuel-Driven Bactericidal Micromotor

https://doi.org/10.1007/s40820-015-0071-3
Ya Ge
Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices and Collaborative Innovation Center (CIC) of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, Jiangsu, People’s Republic of China
Mei Liu
Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices and Collaborative Innovation Center (CIC) of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, Jiangsu, People’s Republic of China
Limei Liu
Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices and Collaborative Innovation Center (CIC) of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, Jiangsu, People’s Republic of China
Yunyu Sun
Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices and Collaborative Innovation Center (CIC) of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, Jiangsu, People’s Republic of China
Hui Zhang
Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices and Collaborative Innovation Center (CIC) of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, Jiangsu, People’s Republic of China
Bin Dong
Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices and Collaborative Innovation Center (CIC) of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, Jiangsu, People’s Republic of China

Corresponding Author: Bin Dong

bdong@suda.edu.cn

Nano-Micro Letters, Vol. 8 No. 2 (2016), Article Number: 157-164

Abstract

In this paper, we report fabrication of the bimetallic Janus microsphere, a magnesium microsphere with a silver surface coating, through thermal evaporation technique. Because of the Janus structure, this micromotor can be propelled in two different directions by the surface silver or magnesium ‘engine’ and hydrogen peroxide or water fuel. In addition, due to the bactericidal property of silver, this autonomous micromotor is capable of killing bacteria in solution. As compared to the static one, the micromotor is able to kill the bacteria at a much faster rate (about nine times of that of the static one), demonstrating the superiority of the motion one. We thus believe that the micromotor shown in the current study is potentially attractive for the environmental hygiene applications.

Keywords

Micromotor Self-propelling Bacterial killing Janus E. coli
Ge, Ya, Mei Liu, Limei Liu, Yunyu Sun, Hui Zhang, and Bin Dong. 2015. “Dual-Fuel-Driven Bactericidal Micromotor”. Nano-Micro Letters 8 (2):157-64. https://doi.org/10.1007/s40820-015-0071-3.
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