在植入物上喷抗菌层,以在近红外光下通过光电子消除生物膜
Junyu Dong1, Shuqi Feng2, Kai Wang1
1School of Chemical Engineering, Sichuan University, No. 24th, South Section 1, Yihuan Road, Chengdu, 610065, China. xuemeizhou@scu.edu.cn.
Journal of materials chemistry. B
|October 8, 2025
概括
新的抗菌植入物使用近红外光 (NIR) 激活的稀土和黄金纳米粒子 (RE NPs/Au NPs) 来消除有害的生物膜. 这种方法通过预防感染和促进生物相容性,提高了植入物成功率.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 传染性疾病 传染性疾病
背景情况:
- 植入物上的细菌生物膜可能会导致失败.
- 开发有效的抗菌植入物表面是一项挑战.
- 目前的方法需要复杂的表面反应.
研究的目的:
- 为植入物开发一种新的抗菌涂层.
- 使用近红外光 (NIR) 激活的稀土和黄金纳米粒子 (RE NPs/Au NPs).
- 研究光电子疗法 (PET) 对于生物膜去除的疗效.
主要方法:
- 使用种子辅助生长合成的RE NPs/Au NPs悬浮液.
- 纳米粒子悬浮沉积在植入物 (SLA Ti和阳极 Ti) 上,通过超声波辅助喷雾.
- 在体外和体外评估生物膜去除效果和生物相容性.
- 研究了TiO2纳米管在阳极Ti植入物中的作用.
主要成果:
- 通过NIR激活的RE NPs/Au NPs有效地从植入物中去除了生物膜.
- 经过处理的植入物显示出高生物相容性和物理稳定性.
- 与SLA Ti相比,阳极Ti植入物显示出更高的抗菌性能.
- 细胞外光电疗法 (PET) 机制得到证实.
结论:
- 激活NIR的RE NPs/Au NPs为抗菌植入物表面提供了一个有希望的策略.
- 开发的方法可适应各种生物材料应用.
- 带有TiO2纳米管的AnodicTi增强了纳米粒子固定和抗菌功效.
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