Biological and antibacterial properties of TiO2 coatings containing Ca/P/Ag by one-step and two-step methods

被引：16

作者：

Zhang, Lei ^{[1
]}

Li, Baoe ^{[1
]}

Zhang, Xianlin ^{[1
]}

Wang, Donghui ^{[1
]}

Zhou, Linxi ^{[1
]}

Li, Haipeng ^{[1
]}

Liang, Chunyong ^{[1
]}

Liu, Shimin ^{[2
]}

Wang, Hongshui ^{[1
]}

机构：

[1] Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin 300130, Peoples R China

[2] Tianjin Univ Commerce, Dept Gem & Mat Tech, Tianjin 300134, Peoples R China

来源：

BIOMEDICAL MICRODEVICES | 2020年 / 22卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Titanium; Micro-arc oxidation; Cathodic deposition; Silver; MICRO-ARC OXIDATION; FORMATION MECHANISM; COMPOSITE COATINGS; TITANIUM; AG; BIOCOMPATIBILITY;

D O I：

10.1007/s10544-020-00482-8

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The porous TiO2 coatings containing Ca/P/Ag were separately prepared on titanium (Ti) surface by one-step (micro-arc oxidation) and two-step methods (micro-arc oxidation and cathodic deposition), and then their surface morphology, composition, biological and antibacterial properties were compared. The results showed that the porous coatings containing Ca/P/Ag achieved by different methods showed similar surface morphology and elemental composition, however, by one-step method, silver existed in the coating as silver phosphate, while in the coatings prepared by two-step method, silver existed as metallic silver. Although both coatings showed excellent antibacterial property (the antimicrobial rate is over 99.9%), the surface coating prepared by one-step method had a more suitable release curve of Ag. In addition, the surface coating prepared by one-step method also presented better biological property, which was due to its enhanced surface roughness and hydrophilicity. Combining with its easy operation and long-term antibacterial property, its prospect for clinical application is more promising.

引用

页数：8

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