Petal effect-inspired superhydrophobic and highly adhesive coating on magnesium with enhanced corrosion resistance and biocompatibility

doi:10.1007/s40843-017-9087-2

	Petal effect-inspired superhydrophobic and highly adhesive coating on magnesium with enhanced corrosion resistance and biocompatibility
	Peng, Feng 1; Wang, Donghui 1; Ma, Xiaohan ; Zhu, Hongqin ; Qiao, Yuqin ; Liu, Xuanyong
刊名	SCIENCE CHINA-MATERIALS
	2018
卷号	61 期号:4 页码:629
关键词	magnesium petal-effect superhydrophobic corrosion resistance biocompatibility
ISSN号	2095-8226
DOI	10.1007/s40843-017-9087-2
英文摘要	With properties of complete degradation and favorable mechanical behavior, Mg and its alloys are regarded as the next generation medical metal materials. However, fast degradation and poor surface biocompatibility hinder their clinical applications. Inspired by the "petal effect", we successfully constructed a superhydrophobic and highly adhesive coating on pure Mg via a simple hydrothermal treatment in a solution containing sodium oleate. The superhydrophobicity of the fabricated coating results from its flake-like micro-nanostructure and the low-surface-energy oleate group. Water droplet on the superhydrophobic coating cannot roll off even when the sample is turned upside down, owing to the sealed air-pockets and the van der Waals' attraction at the solidliquid interface, indicating a highly adhesive force. The chemical and mechanical stability of the superhydrophobic coating were measured. Potentiodynamic polarization and electrochemical impedance spectroscopy measurements suggest enhanced corrosion resistance of the as-prepared sample. Furthermore, cell cytotoxicity, migration and adhesion data of human umbilical vein endothelial cells (HUVECs) reveal an improved cytocompatibility of the modified surface. Finally, hemolysis assay and platelet adhesion assay suggest an improved hemocompatibility. It is believed that the facile and low-cost method can expand the new application of superhydrophobic surface with highly adhesive on Mg in biomedical fields.
学科主题	Materials Science, Multidisciplinary
出版者	SCIENCE PRESS
WOS记录号	WOS:000432685300016
资助机构	This work was financially supported by the Distinguished Young Scholars of China (51525207), the National Natural Science Foundation of China (31570973), the National Key Research and Development Program of China (2016YFC1100604), and Shanghai Committee of Science and Technology, China (15441904900). ; This work was financially supported by the Distinguished Young Scholars of China (51525207), the National Natural Science Foundation of China (31570973), the National Key Research and Development Program of China (2016YFC1100604), and Shanghai Committee of Science and Technology, China (15441904900).
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25027]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Peng, Feng,Wang, Donghui,Ma, Xiaohan,et al. Petal effect-inspired superhydrophobic and highly adhesive coating on magnesium with enhanced corrosion resistance and biocompatibility[J]. SCIENCE CHINA-MATERIALS,2018,61(4):629, 642.
APA	Peng, Feng,Wang, Donghui,Ma, Xiaohan,Zhu, Hongqin,Qiao, Yuqin,&Liu, Xuanyong.(2018).Petal effect-inspired superhydrophobic and highly adhesive coating on magnesium with enhanced corrosion resistance and biocompatibility.SCIENCE CHINA-MATERIALS,61(4),629.
MLA	Peng, Feng,et al."Petal effect-inspired superhydrophobic and highly adhesive coating on magnesium with enhanced corrosion resistance and biocompatibility".SCIENCE CHINA-MATERIALS 61.4(2018):629.