Bioactivity and antibacterial effect of nitrogen plasma immersion ion implantation on polyetheretherketone

被引：65

作者：

Gan, Kang ^{[1
]}

Liu, Hong ^{[1
]}

Jiang, Lingling ^{[1
]}

Liu, Xiuju ^{[1
]}

Song, Xiaoqing ^{[1
]}

Niu, Deli ^{[1
]}

Chen, Tianjie ^{[1
]}

Liu, Chenchen ^{[1
]}

机构：

[1] Jilin Univ, Dept Gen Dent, Sch & Hosp Stomatol, 1500 Qing Hua Rd, Changchun 130021, Peoples R China

来源：

DENTAL MATERIALS | 2016年 / 32卷 / 11期

关键词：

PEEK; Plasma immersion ion implantation; Bioactivity; Antibacterial; SURFACE-ROUGHNESS; IN-VITRO; SPRAYED HYDROXYAPATITE; STAINLESS-STEEL; PEEK; OSSEOINTEGRATION; CYTOCOMPATIBILITY; DIFFERENTIATION; BIOMATERIALS; POLYETHYLENE;

D O I：

10.1016/j.dental.2016.08.215

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

Objective. We aimed to investigate the bioactivity and antibacterial effect of nitrogen plasma immersion ion implantation (Pill) on polyetheretherketone (PEEK). Methods. According to the different modified parameters, the PEEK specimens were randomly divided into four main groups (n = 49/group): PEEK-C, PEEK-I, PEEK-L, and PEEK-H. Then, N-2-PIII surface modification was conducted using the corresponding parameters. The microstructure and composition of the modified PEEK surface was observed by scanning electron microscope (SEM), atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). The water contact angle of the PEEK surface was also studied by contact angle meters. The bioactive ability of PEEK samples was evaluated by observing the attachment, proliferation, and differentiation of MG63 cells cultured on the PEEK samples. Antibacterial property of the samples against Staphylococcus aureus was detected with the plate colony-counting methods. Results. SEM and AFM analysis shows that PEEK-C surface is relatively smooth with the Ra value of 50.6 +/- 2.52 nm. PEEK-I and PEEK-L surface is rough with the Ra value of 435.9 +/- 6.47 nm and 443.23 +/- 5.49 nm, respectively, and the PEEK-H surface is the most rough with the Ra value of 608.4 +/- 3.14 nm. XPS element analysis demonstrated that nitrogen functional groups were successfully introduced into the surface of PIII-modified PEEK. Biological evaluation and the antibacterial results showed that nitrogen Pill treatment can significantly improve the biological activity of PEEK, and samples showed antibacterial properties against S. aureus. Significance. PEEK surface subjected to the N2-PIII treatment showed better biological activity and antibacterial effect. Therefore, N-2-PIII-treated PEEK surface is promising in bone tissue engineering and dental applications. (C) 2016 The Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.

引用

页码：E263 / E274

页数：12

共 50 条

[1] Tensile properties, tension-tension fatigue and biological response of polyetheretherketone-hydroxyapatite composites for load-bearing orthopedic implants [J].