ULTRAFINE CONTROL OF Cu NANOPARTICLES AND THEIR ANTIBIOTIC EFFECT ON E. coli

Qingbin Wang, Liangyuan Shi, Yun Yang, Hui Huang, Yi Jie, Mingwei Lin, Jianfu Liang, Cheng Liu and Hanbiao Song
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Qingbin Wang: Yunfu Power Supply Bureau of Guangdong Power Grid Co., Ltd., Yunfu, Guangdong 527300, P. R. China
Liangyuan Shi: Yunfu Power Supply Bureau of Guangdong Power Grid Co., Ltd., Yunfu, Guangdong 527300, P. R. China
Yun Yang: Yunfu Power Supply Bureau of Guangdong Power Grid Co., Ltd., Yunfu, Guangdong 527300, P. R. China
Hui Huang: Yunfu Power Supply Bureau of Guangdong Power Grid Co., Ltd., Yunfu, Guangdong 527300, P. R. China
Yi Jie: Yunfu Power Supply Bureau of Guangdong Power Grid Co., Ltd., Yunfu, Guangdong 527300, P. R. China
Mingwei Lin: Yunfu Power Supply Bureau of Guangdong Power Grid Co., Ltd., Yunfu, Guangdong 527300, P. R. China
Jianfu Liang: Yunfu Power Supply Bureau of Guangdong Power Grid Co., Ltd., Yunfu, Guangdong 527300, P. R. China
Cheng Liu: Department of Vascular Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210093, P. R. China
Hanbiao Song: State Grid Liaoyang Power Supply Co., Ltd., Liaoyang, Liaoning 111000, P. R. China

Surface Review and Letters (SRL), 2019, vol. 26, issue 07, 1-6

Abstract: Metallic nanoparticles have attracted intense interest for the potential applications in biocompatibility due to the reduced particle size. However, the methods to produce metallic nanoparticles usually produce an inhomogeneous size distribution. In this work, Cu nanoparticles were generated using a gas-aggregation cluster source technique, employing a specially designed quadrupole mass filter to control the size of the nanoparticles with a mass resolution (m/Δm) of 5. Transmission electron microscopic (TEM) analysis was used to confirm the size control of our technique. The generally high angular electronic scattering analysis revealed the spherical shapes of the Cu nanoparticles. We used beams of these nanoparticles to prepare nano-granular films on a Si substrate. Their antibacterial effect of the modified materials on Escherichia coli was assessed by means of a bacterial adhesion test. Our results may not only reveal the cluster technique to produce the uniform metallic nanoparticles, but also form the basis of antibacterial applications.

Keywords: Cu nanoparticles; nano-granular films; antibiotic effect; STEM (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1142/S0218625X18502141

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