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Formation of CuO nano-flowered surfaces via submerged photo-synthesis of crystallites and their antimicrobial activity

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Title: Formation of CuO nano-flowered surfaces via submerged photo-synthesis of crystallites and their antimicrobial activity
Authors: Nishino, Fumika Browse this author
Jeem, Melbert Browse this author
Zhang, Lihua Browse this author
Okamoto, Kazumasa Browse this author
Okabe, Satoshi Browse this author
Watanabe, Seiichi Browse this author →KAKEN DB
Issue Date: 21-Apr-2017
Publisher: Nature Publishing Group
Journal Title: Scientific Reports
Volume: 7
Issue: 1
Start Page: 1063
Publisher DOI: 10.1038/s41598-017-01194-5
Abstract: We report the fabrication of flower-like CuO nanostructured surfaces via submerged photo-synthesis of crystallites (SPSC), which requires only UV illumination in neutral water. In this paper, we discuss the reaction mechanism of the photochemical formation of the SPSC-fabricated CuO nanostructures in detail based on surface microstructural analyses and a radiation-chemical consideration with additional gamma-ray irradiation. Since the SPSC method for surface nanostructural fabrication can work at low temperatures at atmospheric pressure without using harmful substances, it is a potential fabrication method for green nanotechnology applications. In this vein, the antibacterial activity of the nano-flowered CuO surfaces was tested against Gram-positive (Staphylococcus aureus) bacteria and Gram-negative (Escherichia coli K12) bacteria, and the results demonstrate that the nano-flowered CuO nanostructures act as an effective antimicrobial agent. Nanostructured metal oxides are known to have different optical, chemical and mechanical properties from the
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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