A novel Cu-bearing high-entropy alloy with significant antibacterial behavior against corrosive marine biofilms
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2020年第11期
论文作者：Enze Zhou Dongxu Qiao Yi Yang Dake Xu Yiping Lu Jianjun Wang Jessica A.Smith Huabing Li Hongliang Zhao Peter K.Liaw Fuhui Wang
文章页码：201 - 210
摘 要：The design of novel high-entropy alloys（HEAs） provides a unique opportunity for the development of structure-function integrated materials with high mechanical and antimicrobial properties. In this study, by employing the antibacterial effect of copper, a novel Al0.4CoCrCuFeNi HEA with broad-spectrum antibacterial and strong mechanical properties was designed. High concentrations of copper ions released from the HEA prevented growth and biofilm formation by biocorrosive marine bacterial species. These findings serve as a proof-of-concept for further development of unique HEA materials with high antimicrobial efficiency and mechanical properties, compared to conventional antibacterial alloys.
Enze Zhou1,2，Dongxu Qiao3，Yi Yang1,2，Dake Xu1,2，Yiping Lu3，Jianjun Wang2，Jessica A.Smith4，Huabing Li2，Hongliang Zhao5，Peter K.Liaw6，Fuhui Wang1,2
1. Shenyang National Laboratory for Materials Science, Northeastern University2. Key Laboratory for Anisotrotropy and Texture of Materials (Ministry of Education), School of Materials Science and Engineering, Northeastern University3. Key Laboratory of Solidification Control and Digital Preparation Technology (Liaoning Province), School of Materials Science and Engineering, Dalian University of Technology4. Department of Biomolecular Sciences, Central Connecticut State University5. School of Materials Science and Engineering, Zhengzhou University6. Department of Materials Science and Engineering, The University of Tennessee
摘 要：The design of novel high-entropy alloys（HEAs） provides a unique opportunity for the development of structure-function integrated materials with high mechanical and antimicrobial properties. In this study, by employing the antibacterial effect of copper, a novel Al0.4CoCrCuFeNi HEA with broad-spectrum antibacterial and strong mechanical properties was designed. High concentrations of copper ions released from the HEA prevented growth and biofilm formation by biocorrosive marine bacterial species. These findings serve as a proof-of-concept for further development of unique HEA materials with high antimicrobial efficiency and mechanical properties, compared to conventional antibacterial alloys.
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