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通过银/酸复合涂层对聚乙基的协同生物活性和抗菌表面工程

Tianjie Chen^1,2, Yunbo Gao^2,3, Rongzhong Zhu⁴

¹Department of Stomatology, Qilu Hospital of Shandong University, Jinan City, Shandong Province, People's Republic of China.

Journal of the Royal Society, Interface

|January 15, 2026

概括

这项研究在聚乙基植入物上创造了一种新的银/酸涂层. 这种复合涂层增强骨生长,并为骨科应用提供强大的抗菌作用.

科学领域:

生物材料科学生物材料科学
整形外科工程整形外科工程
表面化学表面化学

背景情况:

聚乙基 (PEEK) 广泛用于整形外科,但缺乏固有的生物活性和抗菌特性.
提高PEEK的表面特性对于改善植入物集成和预防感染至关重要.

研究的目的:

在PEEK上开发银/酸 (Ag/CaP) 复合涂层.
评估涂层的生物活性,骨质生成潜力和抗菌功效.
评估修改PEEK表面的离子释放概况和细胞毒性.

主要方法:

通过等离子处理和聚多巴胺涂层对PEEK进行纳米结构化.
沉积银纳米粒子和化学矿化酸盐层.
综合性地表表征 (SEM,EDS,XRD,AFM,Ra) 进行.
在体外离子释放,细胞培养 (MC3T3-E1) 和抗菌试验 (S. aureus,E. coli).

主要成果:

在PEEK上成功制造了一种分层的,水友的Ag/CaP涂层.
从CaP/Ag/PEEK涂层中持续,细胞相容地释放Ag+,Ca2+和PO43-离子.
显著增强骨质前粘附,扩散和骨质分化.
超过90%的抑制S. aureus和大肠杆菌,减少了与Ag相关的细胞毒性.

结论:

Ag/CaP复合涂层协同促进骨再生和抗感染能力.
这种表面修改策略显示了先进的骨科植入物的巨大潜力.
该涂层提高了PEEK的生物活性和抗菌性能,使骨再生更安全,更有效.

关键词:

生物活性生物活性聚乙基 (PEEK) 是一种聚乙基.表面的修改表面的修改

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