In vitro corrosion resistance and antibacterial properties of layer-by-layer assembled chitosan/poly-L-glutamic acid coating on AZ31 magnesium alloys

被引：51

作者：

Cui, Lan-yue ^{[1
,2
]}

Xu, Ji ^{[1
]}

Lu, Na ^{[1
]}

Zeng, Rong-chang ^{[1
,2
]}

Zou, Yu-hong ^{[3
]}

Li, Shuo-qi ^{[1
,2
]}

Zhang, Fen ^{[1
,2
]}

机构：

[1] Shandong Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266590, Peoples R China

[2] Shandong Univ Sci & Technol, Shandong Prov & Minist Sci & Technol, State Key Lab Min Disaster Prevent & Control, Qingdao 266590, Peoples R China

[3] Shandong Univ Sci & Technol, Coll Chem & Environm Engn, Qingdao 266590, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2017年 / 27卷 / 05期

基金：

中国国家自然科学基金;

关键词：

magnesium alloy; corrosion; layer-by-layer assembly; chitosan; antibacterial effect; POLY(L-GLUTAMIC ACID); CONVERSION COATINGS; COMPOSITE COATINGS; MULTILAYER FILMS; PURE MG; DEGRADATION; CONSTRUCTION; PROTECTION; OXIDATION; RELEASE;

D O I：

10.1016/S1003-6326(17)60126-2

中图分类号：

TF [冶金工业];

学科分类号：

080601 [冶金物理化学];

摘要：

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.

引用

收藏

页码：1081 / 1086

页数：6

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