一种含有硫化的压电水凝,具有增强的声动力学/纳米酶活性,用于协同杀死细菌并促进骨质细胞分化
Xiaowen Xi1, Susu Ma2,3, Ping Sun4
1Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, PR China. jiewei7860@sina.com.
Journal of materials chemistry. B
|February 12, 2025
概括
这项研究介绍了一种新的压电纳米酶水凝,它使用超声波杀死细菌并促进骨细胞生长,为感染的骨缺陷修复提供了一个有希望的解决方案.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 组织工程是组织工程.
背景情况:
- 压电纳米酶结合了压电和纳米酶活性,产生机械刺激驱动的生物效应.
- 现有的材料缺乏双重功能,既具有抗菌作用,又促进组织再生中的细胞反应.
研究的目的:
- 合成和描述一种新的压电纳米酶 (VBS),并开发一种压电水凝 (VBS-PSA).
- 研究VBS-PSA在不同超声波功率下治疗受感染的骨缺陷的双模式治疗潜力.
主要方法:
- 硫化物 (BS) 与阴离子空位 (VBS) 的合成和VBS-PSA水凝的制备.
- 在超声波下评估VBS-PSA的压电,纳米酶活动 (POD类,CAT类) 和反应性氧物种 (ROS) 产生 (美国).
- 在高功率US下对抗菌疗效和在低功率US下对骨质母细胞反应 (增殖,分化) 的评估.
主要成果:
- 与BS相比,VBS表现出增强的压电和纳米酶活动.
- 在高功率US下,VBS-PSA通过ROS生成表现出强大的抗菌活性.
- 美国对VBS-PSA的低功率刺激促进了骨质母细胞的增殖和分化,并增强了CAT类活性.
结论:
- 开发的压电液凝 (VBS-PSA) 为协同抗菌和骨质效应提供了一个可调的平台.
- 这种策略有效地利用压电效应来增强感染骨缺陷修复的声动力学和纳米酶活动.
- 在再生医学和治疗骨感染方面,VBS-PSA具有很大的应用潜力.
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