Mussel-inspired superhydrophobic surfaces with enhanced corrosion resistance and dual-action antibacterial properties

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	Mussel-inspired superhydrophobic surfaces with enhanced corrosion resistance and dual-action antibacterial properties
	Qian, Hongchang; Li, Minglu; Li, Zhong; Lou, Yuntian; Huang, Luyao; Zhang, Dawei; Xu, Dake; Du, Cuiwei; Lu, Lin; Gao, Jin
刊名	ELSEVIER SCIENCE BV
	2017-11-01
卷号	80 页码:566-577
关键词	Superhydrophobic Surfaces Corrosion Antibacterial Materials Silver Nanoparticles
ISSN号	0928-4931
英文摘要	In this study, a multilayer antibacterial film was assembled onto 316L stainless steel via mussel-inspired depositions of polydoparnine (PDA) and silver (Ag) nanoparticles followed by post-modification with 1H, 1H, 2H, 2Hperfluorodecanethiol. The resulting surface exhibited excellent superhydrophobicity with hierarchical micro/nanostructures that were constructed by both PDA and Ag nanoparticles. The crystal structure and chemical composition of these surfaces were investigated using X-ray photoelectron spectroscopy (XPS) analysis. Potentiodynamic polarization measurements revealed that the corrosion resistance of the as-prepared surfaces were sequentially increased after each step of the fabrication process. Compared with the surface covered with only Ag nanoparticles, the superhydrophobic surfaces exhibited substantially enhanced antibacterial activity against the Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus, resulting from the synergistic antibacterial actions of the superhydrophobic surface and Ag nanoparticles. The superhydrophobic surface exhibited lower cytotoxicity, compared to the surface covered with Ag nanoparticles. (C) 2017 Elsevier B.V. All rights reserved.; In this study, a multilayer antibacterial film was assembled onto 316L stainless steel via mussel-inspired depositions of polydoparnine (PDA) and silver (Ag) nanoparticles followed by post-modification with 1H, 1H, 2H, 2Hperfluorodecanethiol. The resulting surface exhibited excellent superhydrophobicity with hierarchical micro/nanostructures that were constructed by both PDA and Ag nanoparticles. The crystal structure and chemical composition of these surfaces were investigated using X-ray photoelectron spectroscopy (XPS) analysis. Potentiodynamic polarization measurements revealed that the corrosion resistance of the as-prepared surfaces were sequentially increased after each step of the fabrication process. Compared with the surface covered with only Ag nanoparticles, the superhydrophobic surfaces exhibited substantially enhanced antibacterial activity against the Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus, resulting from the synergistic antibacterial actions of the superhydrophobic surface and Ag nanoparticles. The superhydrophobic surface exhibited lower cytotoxicity, compared to the surface covered with Ag nanoparticles. (C) 2017 Elsevier B.V. All rights reserved.
学科主题	Materials Science, bioMaterials
语种	英语
资助机构	National Natural Science Foundation of China [51401018]; Beijing Nova Program [Z171100001117076]; Fundamental Research Funds for the Central Universities [FRF-TP-16-028A3]
公开日期	2018-01-10
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79024]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhang, DW; Xu, DK; Du, CW (reprint author), Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing 100083, Peoples R China.; Xu, DK (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China.
推荐引用方式 GB/T 7714	Qian, Hongchang,Li, Minglu,Li, Zhong,et al. Mussel-inspired superhydrophobic surfaces with enhanced corrosion resistance and dual-action antibacterial properties[J]. ELSEVIER SCIENCE BV,2017,80:566-577.
APA	Qian, Hongchang.,Li, Minglu.,Li, Zhong.,Lou, Yuntian.,Huang, Luyao.,...&Xu, DK .(2017).Mussel-inspired superhydrophobic surfaces with enhanced corrosion resistance and dual-action antibacterial properties.ELSEVIER SCIENCE BV,80,566-577.
MLA	Qian, Hongchang,et al."Mussel-inspired superhydrophobic surfaces with enhanced corrosion resistance and dual-action antibacterial properties".ELSEVIER SCIENCE BV 80(2017):566-577.