The effect of applied voltages on the structure, apatite-inducing ability and antibacterial ability of micro arc oxidation coating formed on titanium surface

被引：91

作者：

Du, Qing ^{[1
,2
]}

Wei, Daqing ^{[1
,2
,3
]}

Wang, Yaming ^{[1
,2
,5
]}

Cheng, Su ^{[4
]}

Liu, Shang ^{[1
,2
]}

Zhou, Yu ^{[1
,2
]}

Jia, Dechang ^{[1
,2
]}

机构：

[1] Harbin Inst Technol, Dept Mat Sci & Engn, Inst Adv Ceram, Harbin 150001, Heilongjiang, Peoples R China

[2] Harbin Inst Technol, Key Lab Adv Struct Funct Integrat Mat & Green Mfg, Harbin 150001, Heilongjiang, Peoples R China

[3] Harbin Inst Technol, Ctr Anal & Measurement, Harbin 150001, Heilongjiang, Peoples R China

[4] Harbin Univ Sci & Technol, Sch Architecture & Civil Engn, Dept Mech Engn, Harbin 150001, Heilongjiang, Peoples R China

[5] Harbin Inst Technol, Inst Adv Ceram, POB 3022,Sci Pk,2 Yikuang St, Harbin 150080, Heilongjiang, Peoples R China

来源：

BIOACTIVE MATERIALS | 2018年 / 3卷 / 04期

关键词：

Micro arc oxidation; Zn element; Applied voltage; Apatite-inducing ability; Antibacterial ability; DOPED HYDROXYAPATITE; SOL-GEL; TIO2; BEHAVIOR; COPPER; DEPOSITION; STRONTIUM; ALLOY; CU;

D O I：

10.1016/j.bioactmat.2018.06.001

中图分类号：

R318 [生物医学工程];

学科分类号：

100103 [病原生物学];

摘要：

The micro arc oxidation (MAO) coatings with different concentrations of Ca, P and Zn elements are successfully formed on the titanium substrate at the different applied voltages. After MAO treatment, the MAO coating exhibits the porous surface structure and composed of anatase and ruffle TiO 2 phases. Meanwhile, the average size and density of micro-pores on the MAO coatings have been modified via the adjusting the applied voltages. In addition, the contents of the incorporated elements such as Zn, Ca and P elements in the MAO coatings have been optimized. The bonding strength test results reveal that the MAO coating shows higher bonding strength, which is up to 45 +/- 5 MPa. Compared to the pure Ti plate, the MAO coating formed at 350 and 400 V show good apatite-inducing ability. Meanwhile, the MAO coating containing Zn, Ca and P elements have better antibacterial ability for E.coli and S.aureus. Thus, the incorporation of Zn, Ca and P elements was an effective method to improve the antibacterial ability. Moreover, the concentrations of Zn, Ca and P elements could be adjusted with the changing of the applied voltages. As a result, the enhancement of the antibacterial ability on the MAO coating surfaces was depended on the comprehensive effect of the incorporated elements and the surface property of MAO coatings.

引用

页码：426 / 433

页数：8

共 29 条

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TiO2 nanotubes enriched with calcium, phosphorous and zinc: promising bio-selective functional surfaces for osseointegrated titanium implants [J].