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表面性质的复杂相互作用调节Ti50Zr合金的抗菌活性

Alexandra Constantinescu¹, Camelia Ungureanu¹, Cristina Dumitriu¹

¹The National University of Science and Technology POLITEHNICA Bucharest 313 Splaiul Independentei 060042 Bucharest Romania cristian.pirvu@upb.ro.

|May 14, 2025

概括

具有纳米结构表面和氧化 (ZnO) 涂层的- (Ti50Zr) 合金显示出对大肠杆菌的增强抗菌性能. 纳米结构表面和ZnO显著改善生物材料应用中的细菌抑制.

科学领域:

材料科学材料科学材料科学
生物材料工程生物材料工程
表面化学表面化学

背景情况:

- (Ti50Zr) 合金是有前途的生物材料.
表面特性极大地影响抗菌性能.
开发有效的抗菌表面对于医疗植入物至关重要.

研究的目的:

为了研究化Ti50Zr合金的抗菌性能,有或没有ZnO涂层.
了解表面形态和纳米结构在细菌抑制中的作用.
评估ZnO涂层和纳米颗粒大小对抗菌功效的影响.

主要方法:

化Ti50Zr合金以创建紧的氧化物 (CO),纳米管 (NT) 和纳米通道 (NC) 表面形态.
使用抑制率和杀菌比率对大肠杆菌的抗菌活性的评估.
表面性质的表征,包括粗性,湿透性和电化学行为.
使用控制纳米粒子尺寸 (10纳米) 的 ZnO 涂层.

主要成果:

Ti50Zr纳米通道 (NC) 结构表现出最高的内在抑制率 (60%).
O涂层显著增强了抗菌活性,Ti50Zr NCZnO达到75%的抑制.
Ti50Zr NTZnO也表现出更好的性能,10纳米ZnO纳米颗粒有助于穿透膜.
表面纳米结构,ZnO涂层和纳米颗粒大小是抗菌疗效的关键因素.

结论:

通过化进行表面纳米结构是有效提高Ti50Zr合金的抗菌性能.
ZnO涂层进一步提高了抗菌性能,特别是在纳米通道结构上.
优化表面形态和ZnO特性对于开发先进的抗菌生物材料至关重要.

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