期刊
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
卷 27, 期 5, 页码 1081-1086出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1003-6326(17)60126-2
关键词
magnesium alloy; corrosion; layer-by-layer assembly; chitosan; antibacterial effect
资金
- National Natural Science Foundation of China [51571134, 51601108]
- Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents, China [2013RCJJ006]
- Natural Science Foundation of Shandong Province, China [2016ZRB01A62]
- Shandong University of Science and Technology Research Fund, China [2014TDJH104]
Surface functionalization of magnesium (Mg) alloys is desired to obtain the surfaces with both improved corrosion resistance and antibacterial property. A corrosion-resistant and antimicrobial coating was prepared on Mg alloy surface by layer-by-layer (LbL) assembly of chitosan (CHI) and poly-L-glutamic acid (PGA) by electrostatic attraction. The functionalized surfaces of the Mg alloys were characterized by field-emission scanning electron microscopy (FE-SEM), Fourier transform infrared (FT-IR) spectroscopy and electrochemical tests. The bactericidal activity of the samples against Staphylococcus aureus was assessed by the zone of plate-counting method. The obtained coating on the Mg alloy substrates exhibits good corrosion resistance and antibacterial performance.
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