Surface Modification of Biomedical Ti-18Zr-15Nb Alloy by Atomic Layer Deposition and Ag Nanoparticles Decoration

被引：5

作者：

Konopatsky, Anton ^{[1
,2
]}

Teplyakova, Tatyana ^{[1
,2
]}

Sheremetyev, Vadim ^{[1
]}

Yakimova, Tamara ^{[3
]}

Boychenko, Olga ^{[3
]}

Kozik, Marina ^{[1
]}

Shtansky, Dmitry ^{[1
]}

Prokoshkin, Sergey ^{[1
]}

机构：

[1] Natl Univ Sci & Technol MISIS, Leninsky Prospect 4s1, Moscow 119049, Russia

[2] RAS, AV Shubnikov Inst Crystallog, FSRC Crystallog & Photon, Moscow 119333, Russia

[3] Lomonosov Moscow State Univ, Sch Chem, Moscow 119991, Russia

来源：

JOURNAL OF FUNCTIONAL BIOMATERIALS | 2023年 / 14卷 / 05期

基金：

俄罗斯科学基金会;

关键词：

superelastic Ti-Zr-Nb alloy; surface modification; atomic layer deposition; Ag nanoparticles synthesis; antibacterial properties; TI-NB-ZR; SILVER NANOPARTICLES; TITANIUM-ALLOYS; THIN-FILMS; STRUCTURAL-PROPERTIES; CRYSTAL-STRUCTURE; COATINGS; BIOCOMPATIBILITY; TRANSFORMATION; METALS;

D O I：

10.3390/jfb14050249

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Superelastic biocompatible alloys attract significant attention as novel materials for bone tissue replacement. These alloys are often composed of three or more components that lead to the formation of complex oxide films on their surfaces. For practical use, it is desirable to have a single-component oxide film with a controlled thickness on the surface of biocompatible material. Herein we investigate the applicability of the atomic layer deposition (ALD) technique for surface modification of Ti-18Zr-15Nb alloy with TiO2 oxide. It was found that a 10-15 nm thick, low-crystalline TiO2 oxide layer is formed by ALD method over the natural oxide film (similar to 5 nm) of the Ti-18Zr-15Nb alloy. This surface consists of TiO2 exclusively without any additions of Zr or Nb oxides/suboxides. Further, the obtained coating is modified by Ag nanoparticles (NPs) with a surface concentration up to 1.6% in order to increase the material's antibacterial activity. The resulting surface exhibits enhanced antibacterial activity with an inhibition rate of more than 75% against E. coli bacteria.

引用

页数：15

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